- 10T Tech
- 1NCE
- 1oT
- 29Metals
- 2TEST (Alkor-Communication)
- 3D-P
- 3GPP (Third Generation Partnership Project)
- 450 MHz Alliance
- 450connect
- 4K Solutions
- 4RF
- 5G Campus Network Alliance
- 5G Forum (South Korea)
- 5G Health Association
- 5G Media Initiative
- 5GAA (5G Automotive Association)
- 5G-ACIA (5G Alliance for Connected Industries and Automation)
- 5GAIA (5G Applications Industry Array)
- 5GCT (5G Catalyst Technologies)
- 5GDNA (5G Deterministic Networking Alliance)
- 5GFF (5G Future Forum)
- 5G-MAG (5G Media Action Group)
- 5GMF (Fifth Generation Mobile Communication Promotion Forum, Japan)
- 5GSA (5G Slicing Association)
- 6G Finland
- 6GEM Consortium
- 6G-IA (6G Smart Networks and Services Industry Association)
- 6G-RIC (Research and Innovation Cluster)
- 6Harmonics/6WiLInk
- 6WIND
- 7-Eleven
- 7Layers
- 7P (Seven Principles)
- 8G Wireless
- A Beep/Diga-Talk+
- A*STAR (Agency for Science, Technology and Research, Singapore)
- A1 Hrvatska
- A1 Telekom Austria Group
- A10 Networks
- A5G Networks
- AAEON Technology
- Aalborg University
- AALTO HAPS
- Aalto University
- AAR (Association of American Railroads)
- Aarna Networks
- ABB
- ABB Robotics
- ABDI (Brazilian Agency for Industrial Development)
- ABEL Mobilfunk
- ABiT Corporation
- ABP (Associated British Ports)
- ABS
- Abside Networks
- Abu Dhabi Police
- Accedian
- AccelerComm
- Accelink Technologies
- Accelleran
- Accenture
- ACCESS CO.
- Access Spectrum
- Accesso
- AccessParks
- ACCF (Australasian Critical Communications Forum)
- Accton Technology Corporation
- Accu-Tech
- Accuver
- Ace Internet Services
- ACE Technologies
- AceAxis
- AceTel (Ace Solutions)
- Achronix Semiconductor Corporation
- ACMA (Australian Communications and Media Authority)
- ACMOSS (Agency for Operational Security & Rescue Mobile Communications, France)
- ACOME
- Acorn Wireless
- ACPS (Albemarle County Public Schools)
- Acromove
- ACS (Applied Computer Solutions)
- ACT (Aqaba Container Terminal)
- Actelis Networks
- Actemium (VINCI Energies)
- Actility
- Action Technologies (Shenzhen Action Technologies)
- Actiontec Electronics
- Active911
- Actus Networks
- AD Plastik
- Adani Data Networks
- Adani Group
- Adax
- Adcor Magnet Systems
- Addis Ababa Light Rail
- Adecoagro
- Adelaide Airport
- Adeunis
- ADF (Australian Defence Force)
- ADI (Analog Devices, Inc.)
- Adif (Spanish Railway Infrastructure Administrator)
- Adif AV (Alta Velocidad)
- ADLINK Technology
- ADMIE/IPTO (Independent Power Transmission Operator, Greece)
- ADNOC (Abu Dhabi National Oil Company)
- Adora Cruises
- ADRF (Advanced RF Technologies)
- ADT
- Adtran
- ADVA
- Advanced Energy Industries
- AdvanceTec Industries
- Advantech
- Advantech Wireless Technologies
- AE Aerospace
- AECC (Aero Engine Corporation of China)
- AECC Commercial Aircraft Engine Company
- AEG
- Aegex Technologies
- Aena
- Aerial Applications
- Aeris
- Aero Wireless Group
- AeroFarms
- AeroMobile Communications
- Aerostar International
- Aervivo
- Aethertek
- Aetna Group
- AFC (Asian Football Confederation)
- Affarii Technologies
- Affirmed Networks
- AFL Global
- AFRY
- AGC
- AGCO Corporation
- AGCOM (Communications Regulatory Authority, Italy)
- AGH University of Krakow
- Agile (Agile Interoperable Solutions)
- AGIS (Advanced Ground Information Systems)
- AGM Mobile
- Agnico Eagle Mines
- AG-Placid
- AgriBusiness Connect (Formerly AgriFood Connect)
- Agroamb
- Agropark NART
- Aguas de Valencia
- AGURRE (Association of Major Users of Operational Radio Networks, France)
- AH NET (MVM NET)
- AI-LINK
- AINA Wireless
- Air China
- Air France
- Airband Community Internet
- Airbus
- Airfide Networks
- AirForestry
- Airgain
- AirHop Communications
- Airlinq
- Airport Authority Hong Kong
- Airspan Networks
- Airtower Networks
- Airwaive
- Airwave Developers
- Airwave Solutions
- Airwavz Solutions
- AIS (Advanced Info Service)
- AiVader
- Ajman Police
- Akamai Technologies
- Aker Solutions
- AKIS International
- AKOS (Agency for Communication Networks and Services of the Republic of Slovenia)
- Akoustis Technologies
- Alaska Airlines
- Alaxala Networks Corporation
- ALBEDO Telecom
- Albemarle Corporation
- Albert Einstein Hospital
- Albert Schweitzer Hospital
- albis-elcon
- ALBO (Hijos de Carlos Albo)
- Alcadis
- Alcatel-Lucent International
- Alcoa
- Alcobendas City Council
- Aldenhoven Testing Center
- ALE (Antarctic Logistics & Expeditions)
- Alea
- Alectra Utilities
- Alef (Alef Edge)
- Alepo
- Alestra
- Algar Telecom
- Alibaba Group
- Aliniant
- Allbesmart
- Allen Vanguard Wireless
- Allerio
- Alliander
- Allied Telesis
- Allot
- Alnan Aluminium
- Alpha Networks
- Alpha Wireless
- Alphabet
- Alps Alpine
- Alrosa
- Alsa
- Alsatis Reseaux
- Alstom
- Altaeros
- altafiber (Cincinnati Bell)
- Altair Semiconductor (Sony Semiconductor Israel)
- AltaLink
- ALTAN Redes
- ALTEN
- Altice Group
- Altice Labs
- Altice Portugal
- Altiostar
- ALVIS (Argentina)
- AM Telecom
- AMA XpertEye
- AMAGGI
- Amantya Technologies
- Amarisoft
- Amata Corporation
- Amazon
- Ambra Solutions-ECOTEL
- Ambulance Victoria
- Ambulancezorg Groningen
- AMD (Advanced Micro Devices)
- Amdocs
- Ameren
- America Movil
- American Tower Corporation
- AMI (American Megatrends International)
- AMIT Wireless
- AMN (Africa Mobile Networks)
- AMPC (Australian Meat Processor Corporation)
- Ampere Computing
- Amphenol Corporation
- Ampleon
- Ampliphae
- Amtele Communication
- ANA (All Nippon Airways)
- ANACOM (National Communications Authority, Portugal)
- Anatel (National Telecommunications Agency, Brazil)
- ANAX Metals
- ANCOM (National Authority for Management and Regulation in Communications, Romania)
- Andesat
- ANDEX (Sendai)
- ANDRA
- ANDRO Computational Solutions
- Anek Lines
- Anglo American
- AngloGold Ashanti
- Angola Telecom
- Angolan Ministry of Interior
- Anhui Conch Cement
- Anktion (Fujian) Technology
- Anokiwave
- Anotiva
- Anritsu
- ANS (Advanced Network Services)
- Anshan Iron & Steel Group
- Ansteel Group
- Antamina
- Antenna Company
- Anterix
- Antevia Networks
- Antna Antenna Technology
- Antofagasta Minerals
- Antwerp Police
- Antwerp-Bruges Port Authority
- Aorotech
- AOT (Airports of Thailand)
- APA Group
- APBA (Port Authority of Algeciras Bay)
- APCO (Association of Public-Safety Communications Officials) International
- Apex Technology Group
- APH (Huelva Port Authority)
- API (American Petroleum Institute)
- APM Terminals (Maersk)
- APN (All Purpose Networks)
- APPA (American Public Power Association)
- Apple
- Applus+ IDIADA
- APRESIA Systems
- APSTAR (APT Satellite Company)
- APT (Asia Pacific Telecom)
- APTEL (Association of Proprietary Infrastructure and Private Telecommunications Systems Companies, Brazil)
- aql
- Aqualia
- Aquila (Suzhou Aquila Solutions)
- Aqura Technologies
- ARA (American Rally Association)
- Arabsat
- Aramco (Saudi Arabian Oil Company)
- Aramco Digital
- ARBURG
- Arcadyan Technology Corporation
- Arcelik
- ArcelorMittal
- ARCEP (Regulatory Authority for Electronic Communications and Posts, France)
- Archos
- ARCIA (Australian Radio and Communications Industry Association)
- Arctic Semiconductor (Formerly SiTune Corporation)
- Ardea Resources
- Arete M
- AREU (Lombardy Regional Emergency Service Agency)
- AREX (Airport Railroad Express)
- Argela
- Argentine Federal Police
- ArgoNET
- Aria Networks
- ARIB (Association of Radio Industries and Businesses, Japan)
- Arista Networks
- Arizona National Guard
- Arkessa
- Arm
- Armasuisse (Federal Office for Defense Procurement, Switzerland)
- Armour Communications
- ARMZ (Atomredmetzoloto) Uranium Holding
- ARQ Group
- Arqit Quantum
- Arqueiro Telecom
- ArrayComm (Chengdu ArrayComm Wireless Technologies)
- Arrcus
- Arrow Energy
- ARTC (Australian Rail Track Corporation)
- Artemis Networks
- Artemis Resources
- Artiza Networks
- Aruba
- Arubaito World
- Arukona
- Arvato Supply Chain Solutions
- Asagao TV
- Asahi Kasei
- Asahikawa Cable Television
- Asavie
- ASE Group
- ASELSAN
- AsiaInfo Technologies
- AsiaSat (Asia Satellite Telecommunications Company)
- Askey Computer Corporation
- ASM Global
- ASN (Alcatel Submarine Networks)
- ASOCS
- Aspire Technology
- Aspire Technology Partners
- ASR Microelectronics
- Asseco CEIT
- Assumption University of Thailand
- Assured Wireless Corporation
- AST SpaceMobile
- ASTELLA (Astella Technologies)
- ASTOR (Poland)
- ASTRI (Hong Kong Applied Science and Technology Research Institute)
- ASTRID
- ASU (Arizona State University)
- ASUS (ASUSTeK Computer)
- Asylon
- AT (Auckland Transport)
- AT&T
- AT&T Mexico
- Ataya
- ATDI
- ATEL (Asiatelco Technologies)
- Atel Antennas
- Atesio
- Athens International Airport
- Athonet
- ATIS (Alliance for Telecommunications Industry Solutions)
- ATL (A Test Lab)
- Atlas Copco
- Atlas Iron
- Atlas Telecom
- AtlasEdge
- AtLink Services
- ATM Grupa
- ATN International
- Atos
- ATP (Andean Telecom Partners)
- Atrinet
- ATS Elektronik
- Attabotics
- AttoCore
- ATW Investment & Services
- Auberge Resorts
- Auckland Westpac Rescue Helicopter
- Audace Tech
- Auden Techno
- Audi
- audius
- Auray Technology
- Aurens (Orrence)
- Aurora Flight Sciences
- Ausgrid
- Australia Pacific LNG
- Australian Department of Home Affairs
- Australian Productivity Commission
- AUTC (Africa Utilities Technology Council)
- Automotive Campus (Helmond)
- AV Living Lab
- Avanade
- Avangrid
- Avanti Communications
- Avari Wireless
- Aventiv Technologies
- Avesha Systems
- AVEVA
- AVI
- Aviat Networks
- Avics
- Avidyne Corporation
- Avinor
- Avionica
- Avista Edge
- AVIWEST
- AVM
- AW2S (Advanced Wireless Solutions and Services)
- AWARE7
- AWS (Amazon Web Services)
- AWTG
- AWWA (American Water Works Association)
- AXESS Networks
- Axians
- Axiata Group
- Axiom Space
- Axione
- Axis Communications
- Axon
- Axpo WZ-Systems
- Axtel
- Axxcelera Broadband Wireless
- Axxcss Wireless Solutions
- Axyom.Core (Formerly Casa Systems)
- AZ Groeninge
- Azcom Technology
- Azetti Networks
- B&R Bouwgroep
- B+B SmartWorx
- b<>com (IRT b-com)
- B5GPC (Beyond 5G Promotion Consortium)
- BABS/FOCP (Federal Office for Civil Protection, Switzerland)
- Badger Technologies (Jabil)
- BAE Systems
- Baffinland Iron Mines Corporation
- Bahia State Secretariat of Public Security
- Bahrain Airport Company
- BAI Communications Australia
- Baicells
- BAKOM/OFCOM (Federal Office of Communications, Switzerland)
- Balearia
- Ball Aerospace
- Ballast Networks
- Balluff
- Baltic Networks
- BAM Nuttall (Royal BAM Group)
- Bamrasnaradura Infectious Diseases Institute
- Banco do Brasil
- Banco Santander
- BandRich
- BandwidthX
- Banedanmark
- Bangladesh SSF (Special Security Force)
- Bangs Ambulance
- Baogang Group
- Baoshan Iron & Steel
- Baosteel Group
- Baptist Health South Florida
- Barcelona City Council
- Barcelona Port Authority
- Barcelona Port Police
- Barich
- Barrett Communications
- BART (San Francisco Bay Area Rapid Transit District)
- BARTEC
- Baruch Padeh Medical Center
- BASF
- Basingstoke and Deane Borough Council
- BasqueCCAM (Basque Center for Connected and Autonomous Mobility)
- Batchfire Resources
- Batelco
- BATM Advanced Communications
- BATS Wireless (Broadband Antenna Tracking Systems)
- Bavaria Studios & Production Services
- Bay Minette Police Department
- Bayer
- BAYFU (Bayerische Funknetz)
- Baylin Technologies
- BayRICS (Bay Area Regional Interoperable Communications Systems Authority)
- BBB (BB Backbone Corporation)
- BBC (British Broadcasting Corporation)
- BBF (Brasil BioFuels)
- BBK Electronics
- BBVA (Banco Bilbao Vizcaya Argentaria)
- BC Hydro
- BC Live Productions
- BCA (Building and Construction Authority, Singapore)
- BCDVideo
- BCP (Bournemouth, Christchurch and Poole) Council
- BCX (Business Connexion)
- BDBOS (Federal Agency for Public Safety Digital Radio, Germany)
- Beach Energy
- Beacon Minerals
- Beagle Systems
- Beam Semiconductor
- Beam Wireless
- Beamlink
- BearCom
- BEC Technologies
- Becker Mining Systems
- Beckhoff Automation
- becon
- Beeline Kazakhstan
- Beeline Russia (VimpelCom)
- Beep
- Beeper Communications
- Beijer Electronics Group
- Beijing Capital International Airport
- Beijing Chaoyang Hospital
- Beijing Daxing International Airport
- Beijing Emergency Center
- Beijing MTR Corporation
- Beijing University of Posts and Telecommunications
- BELAZ
- Belden
- Belfast Harbour
- BelFone
- Belgian Federal Public Service Mobility and Transport
- Bell Canada
- Bellantenna
- Belpre City Schools
- Benetel
- Berief Food
- Berkshire Hathaway Energy
- BESCom Elektronik
- BesoVideo
- Betacom
- BH Technologies
- Bharti Airtel
- BHE (Bonn Hungary Electronics)
- BHP
- Bialystok University of Technology
- Biazi Telecom
- BICS
- Bilbao Metro
- Billion Electric
- Binghamton Police Department
- BinnenBereik
- BIPT (Belgian Institute for Postal Services and Telecommunications)
- Bird Technologies
- Birmingham City Council
- BISDN (Berlin Institute for Software Defined Networks)
- Bittium
- Bitwave Networks
- Bivocom
- BK Technologies
- Black & Veatch
- Black Box
- BlackBerry
- Blackned
- BlackRock
- Blickle & Scherer
- BLiNQ Networks
- Bloomcare
- Bloxtel
- Blu Wireless
- Blue Arcus Technologies
- Blue White Robotics
- Blue Wireless
- Bluebird
- Blueforce Development Corporation
- BLUnet Schweiz
- BMA (BHP Mitsubishi Alliance)
- BMRCL (Bangalore Metro Rail Corporation Limited)
- BMS (Bristol-Myers Squibb)
- BMW Brilliance Automotive
- BMW Group
- BMWK (Federal Ministry for Economic Affairs and Climate Action, Germany)
- BNetzA (Federal Network Agency, Germany)
- BNPB (National Agency for Disaster Management, Indonesia)
- BNU (Beijing Normal University)
- Bobcat Miner
- BOCHK (Bank of China Hong Kong)
- Boden Industrial Park
- Boeing
- Boelink (Shanghai Boelink Communication Technology)
- Boingo Wireless
- Boise Police Department
- Boldyn Networks (Formerly BAI Communications)
- Boliden
- Bombardier
- Bombers de Barcelona (Barcelona Fire Service)
- BONC (BON Corporation)
- Bonn Rhein-Sieg University of Applied Sciences
- BoomGrow
- Boost Mobile
- Booz Allen Hamilton
- Borealis
- BorgWarner
- Bosch Engineering
- Bosch Rexroth
- Boskalis Subsea Services
- Boston Children's Hospital
- Boston Dynamics
- Boston Police Department
- Boston Red Sox
- Boston Scientific Corporation
- Botkin Hospital
- Botswana Police Service
- Bouygues Telecom
- Boxchip
- BP
- BPA (Bui Power Authority)
- BPA (Busan Port Authority)
- BR (Bayerischer Rundfunk)
- Bradley University
- BrainNet Consultants
- Branch Communications
- Bravis Hospital
- BravoCom
- Bravus Mining & Resources
- Brazil Federal District Military Police
- Brazilian Army
- Bredengen
- Bridge The Divide Foundation
- Bridgestone Corporation
- Brightwave
- Brimbank City Council
- Brisanet
- Brisbane City Council
- Bristol Port Company
- British Army
- British Sugar
- Brittany Ferries
- Broadcom
- BroadForward
- Broadmobi (Shanghai Broadmobi Communication Technology)
- Broadpeak
- Broadtech
- Brussels Airport Company
- BSNL (Bharat Sanchar Nigam Limited)
- BT Group
- BT Media & Broadcast
- Btel (Bakrie Telecom)
- BTG (Dutch Association of Large-Scale ICT & Telecommunications Users)
- BTI Wireless
- BTP (Brasil Terminal Portuario)
- B-TrunC (Broadband Trunking Communication) Industry Alliance
- BTU (Brandenburg University of Technology Cottbus-Senftenberg)
- BubbleRAN
- Buenos Aires City Police
- Builder [X]
- Bulgarian Ministry of Interior
- Bullitt Mobile
- Bumicom Telecommunicatie
- Bundeswehr (German Armed Forces)
- Bundeswehr University Munich
- Bureau Veritas
- Burlington Fire Department
- Burns & McDonnell
- Busan Transportation Corporation
- Bushu Kogyo
- Butachimie
- BVSD (Boulder Valley School District)
- BVSystems (Berkeley Varitronics Systems)
- BWT (BlueWaveTel)
- BYD
- B-Yond
- C Spire
- C Squared Systems
- C3Spectra
- CABGOC (Cabinda Gulf Oil Company)
- Cable Media Waiwai
- Cable Television Toyama
- CableFree (Wireless Excellence)
- CableLabs
- CABLEX Group
- Caceres City Council
- CACI International
- Cadence Design Systems
- Caesars Entertainment
- CAICT (China Academy of Information and Communications Technology)
- CaixaBank (Formerly Bankia)
- Cal Poly (California Polytechnic State University)
- CalAmp
- CalChip Connect
- Calgary Police Service
- Caliber Public Safety
- California National Guard
- California State University, Stanislaus
- Calix
- Callio Pyhajarvi
- Calnex Solutions
- Calpak
- Caltta Technologies
- Cambium Networks
- Cambridge Consultants
- Cambridgeshire County Council
- Cameron LNG
- CAMET (China Association of Metros)
- Campbell Union School District
- CampusGenius
- Camtel (Cameroon Telecommunications)
- CAMTIC Advanced Mechatronics Technology Institute
- Canadian Army
- Canoga Perkins
- Canon
- Canonical
- Canyon Coal
- Capgemini
- Capgemini Engineering
- Capgemini Invent
- CapitaLand
- Capricorn Metals
- CapX Nederland
- Carahsoft Technology Corporation
- Carbyne
- Cargotec
- Carnegie Mellon University
- Carnival Corporation
- CASCO Signal
- CASIC (China Aerospace Science and Industry Corporation)
- Casio Computer Company
- Cassava Technologies
- Castleberry ISD (Independent School District)
- Castor Marine
- CATA (Canadian Advanced Technology Alliance)
- Catalyst Communications Technologies
- Caterpillar
- CATV (Cable TV)
- Cavli Wireless
- CBA (Chinese Basketball Association)
- CBA (Commonwealth Bank of Australia)
- CBNG (Cambridge Broadband Networks Group)
- CBS Sports
- CCEC (Chippewa Cree Energy Corporation)
- CCI (Communication Components Inc.)
- CCMA (Catalan Broadcasting Corporation)
- CCN (Cirrus Core Networks)
- CCSA (China Communications Standards Association)
- CCTHITA (Central Council of the Tlingit & Haida Indian Tribes of Alaska)
- CCww (Communications Consultants Worldwide)
- CDA (Chicago Department of Aviation)
- CDE Lightband
- CDOT (Colorado Department of Transportation)
- CEA (French Alternative Energies and Atomic Energy Commission)
- CEA-Leti
- CEA-List
- Cegeka
- CeLa Link Corporation
- CelcomDigi
- Celfinet
- CellAntenna Corporation
- Cellcom (Israel)
- Cellcomm Solutions
- Cellient
- Celling 5G
- CellMax Technologies
- Cellnex Telecom
- CELLocity (RF Connect)
- CellOnyx
- Cellwize
- cellXica
- cellXion
- Celona
- CelPlan Technologies
- Cemig (Companhia Energetica de Minas Gerais)
- Centerline Communications
- CENTRA Technology
- Central Petroleum
- CentralSquare Technologies
- Centria University of Applied Sciences
- Centrica Storage
- CEPRI (China Electric Power Research Institute)
- Cepsa
- CEPT (European Conference of Postal and Telecommunications Administrations)
- Ceragon Networks
- Cerillion
- CERTI Foundation
- CertusNet
- CETC (China Electronics Technology Group Corporation)
- CETIN Group
- CEVA
- CEZ Group
- CFR (Romanian Railways)
- CGI
- Ch4lke Mobile
- Challenge Networks
- Chalmers University of Technology
- Changan Automobile
- Changchun Rail Transit
- Changsha Metro
- ChannelPorts
- Charge Enterprises
- Charite University Hospital Berlin
- Charter Communications
- Chat Mobility
- Cheerzing (Xiamen Cheerzing IoT Technology)
- Chelton
- Chemring Technology Solutions
- Chengdu Metro
- Chengdu NTS
- Chevron Corporation
- Chicago Police Department
- Chicony Electronics
- China All Access
- China Baowu Steel Group
- China Broadnet (CBN - China Broadcasting Network)
- China Gold International Resources
- China Merchants Group
- China Merchants Heavy Industries
- China Mobile
- China Mobile Hong Kong
- China National Coal Group
- China Nuclear Power Engineering
- China Railway (China State Railway Group)
- China Satcom (China Satellite Communications)
- China Shenhua Energy
- China Southern Airlines
- China Telecom
- China Unicom
- China West Airport Group
- China-Japan Friendship Hospital
- CHN Energy (China Energy Investment Group)
- Choice NTUA Wireless
- Chongqing Guoyuan Port
- Chongqing Jiangbei International Airport
- Chongqing Rail Transit
- CHU Rennes (Rennes University Hospital)
- CHU Toulouse (Toulouse University Hospital)
- Chubu Electric Power Company
- Chukai Cable Television System Operator
- Chulabhorn Hospital
- Chulalongkorn University
- Chunghwa Telecom
- Cibicom
- CICPA (Critical Infrastructure and Coastal Protection Authority, UAE)
- CICT - China Information and Communication Technology Group (China Xinke Group)
- CIE Automotive
- Cielo Networks
- Ciena Corporation
- CIG (Cambridge Industries Group)
- CIMIC Group
- Cincinnati Police Department
- Cinkarna Celje
- CIO (Connected IO)
- CipherTel
- CircleGx
- Circuit de Barcelona-Catalunya
- Circuit Parcmotor Castelloli
- Circuit Zandvoort
- Cirpack
- Cirtek Holdings Philippines Corporation
- Cisco Systems
- CITIC Pacific Mining
- CITIG (Canadian Interoperability Technology Interest Group)
- CITRA (Communication and Information Technology Regulatory Authority, Kuwait)
- Citrosuco
- City of Brownsville
- City of Las Vegas
- City of Longmont
- City of Montgomery
- City of Santa Maria
- City of Tucson
- Citycom Telekommunikation (Holding Graz)
- Citymesh
- CitySwitch
- CJ Group
- CJ Logistics
- CJ OliveNetworks
- CK Hutchison
- CKH IOD
- Clair Global
- Clark County Department of Aviation
- Claro Brasil
- Claro Colombia
- Clarus Networks Group
- Clavister
- Clear Channel UK
- Clear Mobitel
- ClearBlade
- ClearLink Communications
- ClearSky Technologies
- Cleura
- Cleveland Clinic
- Cleveland Police
- Clever Logic
- Clinical Mobility (Intellicom)
- Cloud Signals
- CloudMile
- CloudMinds
- Clovity
- CLP Power Hong Kong
- CMG (China Media Group)
- CMHIT (China Merchants Holdings Information Technology)
- CMI (China Mobile International)
- CMIG (China Minsheng Investment Group)
- CMIoT (China Mobile IoT)
- CMOC Group
- CMP (Compania Minera del Pacifico)
- CMPort (China Merchants Port Holdings)
- CMU (Chiang Mai University)
- CN (Canadian National Railway Company)
- CNA (Cable Networks Akita)
- CNCi (Community Network Center Inc.)
- CNH Industrial
- CNI Sales
- CNN (Cable News Network)
- CNNC (China National Nuclear Corporation)
- CNOOC (China National Offshore Oil Corporation)
- Cobham
- Cobham Satcom
- COCUS
- Codan Communications
- Codelco (National Copper Corporation of Chile)
- Codium Networks
- Cogisys
- Cognizant
- Cohere Technologies
- Coherent (Formerly II-VI)
- Coherent Logix
- Cohort
- Coiler Corporation
- Collinear Networks
- Collins Aerospace
- Cologne Bonn Airport
- Color Line
- Colorado Parks and Wildlife
- Colt Canada
- Colt Technology Services
- Colusa County Office of Education
- COM PLUS
- Com4
- COMAC (Commercial Aircraft Corporation of China)
- Comander
- Comarch
- Comau
- Comba Telecom
- Combain Mobile
- Combitech
- Comcast Business
- Comcast Corporation
- Comcores
- Comfone
- Comilog
- COMLAB
- CommAgility
- CommandWear Systems
- Commercis
- Commnet Wireless
- Comms International/TecWise
- Comms365
- CommScope
- Compal Electronics
- Comprod
- Comptek Technologies
- ComReg (Commission for Communications Regulation, Ireland)
- Comrod Communication Group
- Coms4Grid
- Comsol (South Africa)
- COMSovereign
- Comtech Telecommunications Corporation
- Comtest Wireless
- Comtrend Corporation
- Comviva
- Con Edison (Consolidated Edison)
- CONET Technologies
- CONEXIO Corporation
- CONGIV
- Conigital
- Connect Tech
- Connect44 Group
- Connected Devices
- Connected Farms (Australia)
- Connectivity Wireless Solutions
- ConocoPhillips
- Consolidated Minerals
- Consort Digital
- Contela
- Continental
- Contour Networks
- Coolpad
- COONTEC
- Coopavel
- CopaSAT
- Copel (Companhia Paranaense de Energia)
- Coranet
- Core Lithium
- coreNOC
- Cornerstone (CTIL)
- Cornet Technology
- Corning
- Correos
- Cortina Access
- Corum Group (DTEK Energy)
- COSCO Group
- COSCO Shipping Heavy Industry
- COSCO Shipping Ports
- Cosemi Technologies
- COSMOTE
- Cosumnes Fire Department
- COTA (Circuit of The Americas)
- Cotton Holdings
- Council Rock
- County of Renfrew Paramedic Service
- Coventry University
- Covestro
- Coweaver
- Cox Communications
- Cox Private Networks
- CP Communications
- CPChem (Chevron Phillips Chemical)
- CPFL Energia
- CPI (Center for Process Innovation)
- CPQD (Center for Research and Development in Telecommunications, Brazil)
- CR (China Resources) Cement
- CR Gas (China Resources Gas Group)
- CRA (Communications Regulatory Authority, Qatar)
- Cradlepoint
- CRC (Communications Research Centre Canada)
- Creanord
- CrisisGo
- CritiComms
- CROSSCALL
- Crown Castle International Corporation
- CRSC (China Railway Signal & Communication Corporation)
- CRTVG (Corporacion Radio e Television de Galicia)
- Crystal Palace Football Club
- CS Corporation
- CSA (Canadian Space Agency)
- CSC (China Steel Corporation)
- CSCEC (China State Construction Engineering Corporation)
- CSG (China Southern Power Grid)
- CSG Systems International
- CSSC (China State Shipbuilding Corporation)
- CSSG (China Space Sanjiang Group)
- CST (Communications, Space & Technology Commission, Saudi Arabia)
- CTAG (Automotive Technology Center of Galicia)
- CTC (Chubu Telecommunications Company)
- CTC (ITOCHU Techno-Solutions)
- CTG (Celestia Technologies Group)
- CTIA
- CTK (Carl-Thiem Hospital Cottbus)
- CTL
- CTOne
- CTPA (Central Texas Purchasing Alliance)
- CTR (Central Corporation)
- CTS (Communication Technology Services)
- CTS Corporation
- CTTC (Catalan Telecommunications Technology Center)
- CTU (Czech Technical University in Prague)
- CTU (Czech Telecommunication Office)
- CTY (Japan)
- CU Boulder (University of Colorado Boulder)
- Cubic Corporation
- Cubic Defence Australia
- Cubic Telecom
- Cummins
- Cumucore
- Curtin University
- CUSD (Collinsville Community Unit School District) 10
- Custom MMIC
- CW (Cambridge Wireless)
- Cyber Forza
- CybertelBridge
- Cyderes
- Cyient
- Cyrus Technology
- Czech Ministry of Interior
- CZU (Czech University of Life Sciences Prague)
- D2 Technologies
- Dabie Mountain Regional Medical Center
- Daeduk University
- DAEL Group
- Daeyoun System Company
- DAF Trucks
- Dahua Technology
- Daikin Industries
- Dali Wireless
- Dallas ISD (Independent School District)
- Dallas Love Field Airport
- Dalrymple Bay Coal Terminal
- Dalton Utilities
- DAMM Cellular Systems
- Danaos Shipping
- Danfoss
- Dang Hong Qi Tian
- Danish National Police
- DARS (Slovenian Motorway Company)
- DART (Dallas Area Rapid Transit)
- Databahn Solutions
- DATACOM
- Datagear
- Datang Renewable Power
- Datang Telecom Technology & Industry Group
- Dataport
- DataSoft
- Datatec
- Datong Coal Mining Group
- Datora Group
- Datwyler IT Infra
- DB (Deutsche Bahn)
- DB Cargo
- DB Schenker
- DBcom
- DBK (Dansk Beredskabskommunikation)
- dbSpectra
- DDR.Live
- De Beers Group
- De Grey Mining
- Debswana Diamond Company
- Deendayal Port Authority
- DeepOcean
- DeepSig
- DeepSight AI Labs
- Defence Australia (Department of Defence)
- Defra (Department for Environment, Food and Rural Affairs, United Kingdom)
- Dejero Labs
- DeKalb Police Department
- DEKRA
- Del Conca USA
- Dell Technologies
- Delmarva Power and Light Company (Exelon)
- Deloitte
- Delta Air Lines
- Delta Electronics
- DEMAG (Demag Cranes & Components)
- DEME Group
- DENGYO (Nihon Dengyo Kosaku)
- Dense Air
- Denso Corporation
- Detecon
- Detroit Lions
- Deutsche Funkturm
- Deutsche Messe
- DEWA (Dubai Electricity & Water Authority)
- DFL (German Football League)
- DFW (Dallas Fort Worth) International Airport
- DGS (Digital Global Systems)
- DHL
- DIAKINISIS
- Dialog Axiata
- Dialogic
- Diamond Communications
- Diamond Offshore Drilling
- DIGI Communications
- Digi International
- Digicert
- Digis Squared
- Digita
- Digital Ally
- Digital Catapult
- Digital Enhancement
- DigitalBridge Group
- DigitalC
- DigitalRoute
- Digitata
- DigitGate (Nanjing DigitGate Communication Technology)
- Dimetor
- Disc Golf Network
- Disc Golf Pro Tour
- DISH Network Corporation
- DKK (Denki Kogyo)
- D-Link Corporation
- DLR (German Aerospace Center)
- DMG Mori
- DMI
- DMTCL (Dhaka Mass Transit Company Limited)
- DNA (Finland)
- DNB (Digital Nasional Berhad)
- DND (Department of National Defence, Canada)
- DNP (Dai Nippon Printing)
- DOA (Department of Airports, Thailand)
- DoCoMo Business
- DOK'ICI
- DOK-ING
- Dominion Energy
- Dongyi Group Coal Gasification Company
- Doodle Labs
- Doogee
- Doosan Corporation
- Dorna Sports
- Dortmund Fire Brigade
- DoT (Department of Telecommunications, India)
- Dow
- Doyle Shipping Group
- DP World
- DPOL (Dos Palos Oro Loma) Joint Unified School District
- DragonWave-X
- Drakontas
- DRDC (Defence Research and Development Canada)
- Dreamtilt
- DriveNets
- Drone Aviation
- DroneSense
- Druid Software
- DRZ (German Rescue Robotics Center)
- DSA (Dynamic Spectrum Alliance)
- DSB (Directorate for Civil Protection, Norway)
- DSBJ (Suzhou Dongshan Precision Manufacturing)
- dstelecom
- DSTL (Defence Science and Technology Laboratory, United Kingdom)
- DT (Deutsche Telekom)
- DTAC (Total Access Communication)
- du (EITC - Emirates Integrated Telecommunications Company)
- Dubai Customs
- Dubai Police
- Dublin City Council
- Dublin Fire Brigade
- Duisburger Hafen
- Duke Energy
- Duke University
- Dundee City Council
- Duoc UC
- Duons
- duotec
- Durabook (Twinhead International Corporation)
- Duubee
- DXC Technology
- DZS
- E.ON
- EA Networks (Electricity Ashburton)
- Eahison Communication
- EANTC
- Eastcom (Eastern Communications)
- Easycom (Shenzhen Easycom Electronics)
- EASYMETERING
- EasyMile
- E-Band Communications
- EBINAX (Ebina Denka Kogyo)
- e-BO Enterprises
- EBRCSA (East Bay Regional Communications System Authority)
- EBU (European Broadcasting Union)
- ECE (European Communications Engineering)
- Echelon Edge
- EchoStar Corporation
- Ecochip
- Ecom Instruments
- Econet Wireless Zimbabwe
- Ecrio
- ECT (Hutchison Ports ECT Rotterdam)
- Edesur Dominicana
- EDF
- EDF Renewables
- Edge Networks
- Edge UOL
- Edgecore Networks
- EdgeQ
- Edgybees
- E-Distribucion
- E-Distribuzione
- Ednetics
- edotco Group
- EDP (Energias de Portugal)
- EDX Wireless
- Edzcom
- EE
- EEI (Edison Electric Institute)
- Eesti Energia
- Efacec
- Effnet
- EGC International
- Egyptian Ministry of Defense
- EHang (Guangzhou EHang Intelligent Technology)
- eHills Corporation
- EHIME CATV
- Eiffage Energie Systemes
- Eigencomm
- eino
- EION Wireless
- Eir (Eircom)
- Ekinops
- Ekobot
- El Corte Ingles
- Elbit Systems
- Eldorado Gold
- ElectraNet
- Electricity Canada (Canadian Electricity Association)
- Elefante Group
- Elefsis Shipyards
- Eleko (Spain)
- Elektro Gorenjska
- Element Materials Technology
- Elgaugol
- E-Lins Technology
- Elisa
- Elisa Estonia
- Elisa Polystar
- Elistair
- Elsight
- Elta Systems
- Eltex
- ELUON Corporation
- ELVA-1
- Emblasoft
- Embraer
- Embrapa (Brazilian Agricultural Research Corporation)
- Embratel
- EMCO (East Mining Company)
- Emera
- Emerging Prairie
- Emerson
- Emitel
- Emmerson Resources
- EMnify
- Emory Healthcare
- EMS (Electronic Media Services)
- ENA (Education Networks of America)
- ENA (Energy Networks Association)
- ENACOM (National Communications Agency, Argentina)
- Enagas
- Encore Networks
- Endeavour Energy
- Endesa
- Endress+Hauser
- Enea
- Enecom (Energia Communications)
- Enel
- ENENSYS Technologies
- Energa-Operator
- Energex
- Energizer Mobile (Avenir Telecom)
- Energy School Service Center
- EnerSys
- EnerTribe
- Eneva
- Enexis
- ENLETS (European Network of Law Enforcement Technology Services)
- ENNA (Energia Naturalis) Group
- Entel (Chile)
- Entel (United Kingdom)
- ENTELEC (Energy Telecommunications and Electrical Association)
- Entra Energy
- Entropia
- Entropy Solution
- ENWAY
- EOG Resources
- Eoptolink Technology
- EOS (Electro Optic Systems)
- Epiroc
- EPR (Energy Project Resources)
- EPRI (Electric Power Research Institute)
- Equiendo
- Equinor
- ERA (European Union Agency for Railways)
- Eramet
- Eravant (SAGE Millimeter)
- Ergon Energy
- Ericsson
- Erillisverkot (State Security Networks Group, Finland)
- Ero Copper
- Errigal
- ErvoCom
- ESA (European Space Agency)
- ESB Networks
- Escambia Community Utilities
- Eseye
- Esharah Etisalat Security Solutions
- Eskom
- Esnet
- ESO EAD (Electricity System Operator, Bulgaria)
- E-Space
- ESR Pollmeier
- Estalky (K-Mobile Technology)
- ETELM
- eTera (Sinotech R&D Group)
- Ethernity Networks
- Etherstack
- Etisalat Group (e&)
- ETRI (Electronics & Telecommunications Research Institute, South Korea)
- ETSI (European Telecommunications Standards Institute)
- Etteplan
- EUCAST
- EURECOM
- Eureka
- EuroChem Group
- Eurofiber
- Eurofins E&E (Electrical and Electronics)
- EUROGATE
- Eurona
- European University of Madrid
- Eurotech
- Euskadi Technology Park
- EUTC (European Utilities Telecom Council)
- Eutelsat Group
- EUWENA (European Users of Enterprise Wireless Networks Association)
- Eventide Communications
- Everbridge
- Evergy
- Evolution Mining
- Evolve Cellular
- Evonik Industries
- evo-rail
- EVRAZ
- EWA (Electricity and Water Authority, Bahrain)
- EWA (Enterprise Wireless Alliance)
- EWG (East-West Gate) Intermodal Terminal
- Ewha Womans University Mokdong Hospital
- Ewing Police Department
- Exacom
- Exaware
- Excelcar
- Excelerate Technology
- EXEO Group
- EXFO
- Exium
- EXOR International
- Expandium
- Expeto
- Exquisite Automotive Systems
- Extenet
- Extreme Networks
- Exxaro
- ExxonMobil
- EY (Ernst & Young)
- Eyecom Telecommunications Group
- EZcon Network
- F2G (Far-Together) Solutions
- F5
- Facens University Center
- Faena Hotel & Forum
- Fairfield Medical Centre (Liverpool)
- Fairspectrum
- Fairwaves
- FANUC
- Faraday Technology Corporation
- Faroe Islands Police
- Fastback Networks
- Fastpartner
- FAU (Friedrich-Alexander University) Erlangen-Nurnberg
- FAW Group
- FCCA (Forestry Conservation Communications Association)
- FCNT (Fujitsu Connected Technologies)
- FCPS (Fredericksburg City Public Schools)
- FCTV (Fukui Cable Television)
- Federal Engineering
- Federated Wireless
- FedEx
- FEFU (Far Eastern Federal University)
- Fenix Group
- FERMAX
- Ferrexpo
- Ferrotec
- Ferrovial
- Festipay
- Festo
- FET (Far EasTone Telecommunications)
- FFC (French Cycling Federation)
- FFG (Fair Friend Group)
- FFI (Defense Research Establishment, Norway)
- FGC (Catalan Government Railways)
- FH Dortmund (Dortmund University of Applied Sciences and Arts)
- FiberHome Technologies
- FIBERSTAMP
- Fibocom
- Fibrolan
- FiduciaEdge Technologies
- Fieldlab Evenementen (Fieldlab Events)
- FIH Mobile
- FII (Foxconn Industrial Internet)
- Filtronic
- Finavia
- FINEP (Brazilian Innovation Agency)
- Finferries (Suomen Lauttaliikenne)
- Fingu (Wuhan Fingu Electronic Technology)
- FinnHEMS (Finnish Helicopter Emergency Medical Services)
- Finning
- Finnish Border Guard
- Finnish Defense Forces
- Finnlines
- Fiplex Communications
- Fira (Finland)
- Fira de Barcelona
- Firecell
- First Quantum Minerals
- FIRST RF Corporation
- FirstEnergy
- FirstGroup
- FirstNet (First Responder Network) Authority
- FirstPoint Mobile Guard
- FIS (International Ski Federation)
- Fishtech Group
- Fiskarheden
- FIT (Foxconn Interconnect Technology)
- Fivecomm
- Fives Group
- FLARE SYSTEMS (Japan)
- Flash Networks
- Flash Private Mobile Networks
- Flectory
- Fleet Complete
- Flex
- Flex Logix Technologies
- Flexitron Group
- Flightcell International
- FLIR Systems
- Flo Networks
- floLIVE
- FlowCentric Technologies
- FluidOne
- Flymotion
- FMBE (FMB Engineering)
- FMJ Group
- FMV (Defense Materiel Administration, Sweden)
- Fontana Unified School District
- FOODPOLIS (Korea Food Industry Cluster Promotion Agency)
- Ford Motor Company
- Formosa Plastics Transport
- Formula One
- Foroya Tele (Faroese Telecom)
- Forsk
- Forsvarsmateriell (Norwegian Defense Materiel Agency)
- Fort Worth ISD (Independent School District)
- Fortescue Metals Group
- Fortinet
- FortisAlberta
- Fortress Solutions
- Fortum
- Foshan Haitian
- Four-Faith Communication Technology
- FOX Sports
- Foxconn (Hon Hai Technology Group)
- FPInnovations
- France Televisions
- Frankfurt University Hospital
- Frankfurt University of Applied Sciences
- Franklin Wireless
- Fraport
- Fraunhofer FOKUS (Institute for Open Communication Systems)
- Fraunhofer HHI (Heinrich Hertz Institute)
- Fraunhofer IAO (Institute for Industrial Engineering and Organization)
- Fraunhofer IEM (Institute for Mechatronic Systems Design)
- Fraunhofer IIS (Institute for Integrated Circuits)
- Fraunhofer IOSB-INA (Application Center for Industrial Automation)
- Fraunhofer IPA (Institute for Manufacturing Engineering and Automation)
- Fraunhofer IPK (Institute for Production Systems and Design Technology)
- Fraunhofer IPT (Institute for Production Technology)
- Fraunhofer-Gesellschaft
- Fred. Olsen Cruise Lines
- Free Mobile
- Free Pro
- FreeBit Group
- Freedom Mobile
- FreedomFi
- Freeeway
- freenet Group
- Freeport of Riga Authority
- Freeport-McMoRan
- French Air Force
- French Army
- French Ministry of Armed Forces
- French Ministry of Interior
- Frequencz
- Frequentis
- Freshwave Group
- FRNSW (Fire and Rescue New South Wales)
- Frog Cellsat
- FrontierSI
- FRTek
- FSG (Field Solutions Group)
- FTI Engineering Network
- FTIA (Finnish Transport Infrastructure Agency)
- FTS (Formula Telecom Solutions)
- Fudan University
- Fujikura
- Fujitsu
- Fundacion SSG
- Funk-Electronic Piciorgros
- Funkwerk
- Furukawa Electric
- Furuno Electric
- FUSD (Fresno Unified School District)
- Future Technologies Venture
- Fuzhou Metro
- Fuzhou Port
- FYCMA (Malaga Trade Fair and Congress Center)
- G REIGNS
- G+D (Giesecke+Devrient)
- G3 Global
- Galati Port
- Galilee Medical Center
- Galtronics
- Gamma Nu
- Gammon Construction
- Gandi
- Gapwaves
- Garderos
- GASAG
- Gazprom Neft
- Gazprom Space Systems
- GAZ-SYSTEM
- GCF (Global Certification Forum)
- GCT Semiconductor
- GD (General Devices)
- Gdansk Tech (Gdansk University of Technology)
- GDIT (General Dynamics Information Technology)
- GDRFA-Dubai (General Directorate of Residency and Foreigners Affairs, Dubai)
- GE (General Electric)
- GE Digital
- GE HealthCare
- GE Renewable Energy
- GE Vernova
- Geely Auto
- Geisinger
- GEKA Telecom
- Gemtek Technology
- General Dynamics
- General Dynamics Mission Systems
- Generalitat Valenciana
- Genesis Group
- GENEViSiO
- Genew Technologies
- Genmix Technology
- GEO DATA
- George Mason University
- Geotab
- GeoTraq
- Geoverse (Commnet Wireless)
- GER4TECH
- Gerdau
- Gestamp
- Getac Technology Corporation
- Gewei (Wuhan Gewei Electronic Technology)
- GF (GlobalFoundries)
- GF Machining Solutions
- GFO Investments
- GGD (Municipal Health Service) Brabant-Zuidoost
- Ghent Fire Department
- Gidarjil Development Corporation
- GIGABYTE Technology
- Gigalane
- GIGALIGHT
- Gigamon
- GigaMonster
- GigaTera Communications
- GigSky
- Gilat Satellite Networks
- GL Communications
- Glanbia
- Glencore
- Global Omnium
- Global Telecom
- Globalgig
- Globalstar
- Globalvia
- Globe Telecom
- Globe Tracker
- Glocall Telecoms
- Glydways
- GM (General Motors)
- GMO Internet Group
- GMP (Green Mountain Power)
- GMR Group
- GO Internet (Italy)
- Gogo Business Aviation
- Gold Fields
- Gold Road Resources
- GoldNet
- Goodman Telecom Services
- Goodmill Systems
- Google
- Goosetown Communications
- Gore (W. L. Gore & Associates)
- Gosuncn Group
- GosuncnWelink Technology
- Gotting KG
- GPMM (Grand Port Maritime de Marseille-Fos)
- Grain Management
- Grand Port Maritime de Dunkerque
- Grange Resources
- Granit Enterprise (Belarus)
- Granite Telecommunications
- Grant County Sheriff's Office (Wisconsin)
- Grant Thornton
- Grape One
- Great Wall Motor Company
- Gree Electric Appliances
- Greek Police
- Green Communications
- Green Packet
- Greenet (Netherlands)
- Green-GO Digital (ELC Lighting)
- GreenPalm (Hangzhou GreenPalm Technology)
- GrenTech
- Grid Communications
- GridGears
- Grolleau
- Groningen Seaports
- Groundhog Technologies
- Groupe ADP
- Groupe Remabec
- GroupTalk
- Grundfos
- Grupo Alava
- Grupo Globo
- Grupo ICE
- Grupo Mexico
- GS Lab (Great Software Laboratory)
- GSA (Global Mobile Suppliers Association)
- GSI (GS Instech)/GST (GS Teletech)
- GSMA (GSM Association)
- GTA - Global Technology Associates (Kelly Telecom)
- GTA (Global Technology Associates)
- GTAA (Greater Toronto Airports Authority)
- GTRK Vladivostok (Vladivostok State TV and Radio Company)
- Guangdong Provincial People's Hospital
- Guangdong Yue Xun Industrial
- Guangxi Liuzhou Iron and Steel Group
- Guangzhou 120 (Guangzhou Emergency Medical Center)
- Guangzhou Baiyun International Airport
- Guangzhou Gosuncn Robot
- Guangzhou Metro
- Guangzhou Port Group
- Guardforce Security (Thailand)
- Guardia Civil (Spanish Civil Guard)
- Guardia Urbana de Barcelona (Barcelona Urban Guard)
- GuardStack
- Guavus
- Guerrilla RF
- Guident
- Guiyang Metro
- Guiyang Public Security Bureau
- Guizhou Tyre
- GUTMA (Global UTM Association)
- GVB (Amsterdam Transport Company)
- GWTCA (Government Wireless Technology & Communications Association)
- GXC (Formerly GenXComm)
- HAAS Alert
- Haasrode Research Park
- Hafen Trier (Trierer Hafengesellschaft)
- Haier
- Hainan Meilan International Airport Company
- Haivision
- HAKOM (Croatian Regulatory Authority for Network Industries)
- Halton Regional Police Service
- Halys
- Hamburg Port Authority
- Hamburger Containerboard
- HaminaKotka Satama
- Hampshire Fire & Rescue Service
- Hampton Valley Forge Volunteer Fire Department
- Hancock Prospecting
- Hancock State Prison
- Hancom MDS
- Handheld Group
- Handsfree Group
- Hangzhou Boss Electric Appliance
- Hangzhou Metro
- Hangzhou Xiaoshan International Airport
- Hanjin Busan Newport
- Hankyu Hanshin Holdings
- Hansen Technologies
- Hanshin Cable Engineering
- Hanshin Electric Railway
- Hanswell
- Hanwha Defense
- Hanwha Techwin
- HAPSMobile
- Harbor Max
- HarborLink Network
- HarborTech Mobility
- HARMAN DTS (Digital Transformation Solutions)
- HAROPA PORT
- HARTING
- Harvilon (Shenzhen Harvilon Technology)
- Havelport Berlin
- Haventure
- Hawaiian Electric
- Hawe Telekom
- Hawk Networks (Althea)
- Haystax Technology
- Hazama Ando Corporation
- HBFEC (Hebei Far East Communication System Engineering)
- HCLTech (HCL Technologies)
- HCU (HafenCity University Hamburg)
- HD Hyundai Heavy Industries
- Heathgate Resources
- Heathrow Commercial Telecoms
- Hebei Port Group
- Hefei Metro
- HEIA-FR (School of Engineering and Architecture of Fribourg)
- Helios (Fujian Helios Technologies)
- Helios Park Hospital Leipzig
- Helium Foundation
- Hellas Gold
- Hellas Sat
- Henan Energy & Chemical Industry Group
- Henan Province Airport Group
- Henan Shenhuo Group
- Hengshen Group
- Hengtong (Jiangsu Hengtong Optic-Electric)
- Hengxin (Jiangsu Hengxin Technology)
- Henkel
- HERE Technologies
- Heriot-Watt University
- Heropolis
- Heroya Industrial Park
- Herystorm (Guangzhou Herystorm Technology)
- HES-SO (University of Applied Sciences and Arts Western Switzerland)
- Het Vertrouwde Dorp
- Hexagon
- Hexagon Communication (Suzhou Hexagon Communication Technologies)
- Hexagon Wireless
- HFCL
- HFR Networks
- HFT Stuttgart (Stuttgart University of Applied Sciences)
- HG Genuine
- HGTECH (Huagong Technology)
- HHLA Sky
- Hibiki Seiki
- Highstreet Technologies
- Highway9 Networks
- HII (Huntington Ingalls Industries)
- Hikvision (Hangzhou Hikvision Digital Technology)
- Hilinks Technology
- Hillebrand Coating (Rudolf Hillebrand)
- Hip Hing Engineering
- HipLink Software
- Hiroshima Gas
- Hiroshima University
- Hirschmann
- Hisense
- HiSilicon Technologies
- HISPASAT
- Hitachi
- Hitachi Construction Machinery
- Hitachi Energy
- Hitachi Kokusai Electric
- Hitachi Rail
- Hitachi Vantara
- HKCEC (Hong Kong Convention and Exhibition Center)
- HKMPB (Hong Kong Maritime and Port Board)
- HKPC (Hong Kong Productivity Council)
- HKT
- HKTech (Howking Tech)
- HKUST (Hong Kong University of Science and Technology)
- HLS (HARD-LINE Solutions)
- HMD Global
- HMDC (Hibernia Management and Development Company)
- HMF Smart Solutions
- HMI Technologies
- HMS Networks
- Hoban Construction
- HOGENT (University College Ghent)
- Hohhot Public Security Bureau
- Hoimyung ICT
- Hokkaido Electric Power Company
- Hokkaido University
- Holland Ridge Farms
- Holmen Iggesund
- Hologram
- HoME (Hochschule Merseburg University of Applied Sciences)
- Honbridge Holdings
- Honda Motor Company
- Honeywell International
- Hong Kong Hospital Authority
- Hong Kong Police Force
- Hongdian Corporation
- HONOR
- HORIBA MIRA
- Horizon Powered
- Hospital Clinic de Barcelona
- Hospital das Clinicas (Sao Paulo)
- Hospital Quironsalud Malaga
- Hospital Universitario de La Princesa
- Hotel Star (China)
- Houari Boumediene Airport
- Houston Methodist
- Hoverfly Technologies
- Howard University
- Howest University of Applied Sciences
- HP
- HPA (Hamburg Port Authority)
- HPE (Hewlett Packard Enterprise)
- HQT (Shenzhen HQT Science and Technology)
- HSC (Hughes Systique Corporation)
- HSG (Haslam Sports Group)
- Hsinchu City Fire Department
- HSU/UniBw H (Helmut Schmidt University/University of the Federal Armed Forces Hamburg)
- HTC Corporation
- HTX (Home Team Science & Technology Agency, Singapore)
- Huahuan (Beijing Huahuan Electronics)
- Hualapai Nation Police Department
- Huaptec
- Huawei
- Hub One (Groupe ADP)
- HUBER+SUHNER
- Hubraum
- HUCOM Wireless
- Hudbay Minerals
- Hughes Network Systems
- Human Horizons
- Humanitas Research Hospital
- Hunan Highway Police
- Hungarian Ministry of Interior
- Hunter Technology
- Huoshenshan Hospital
- Huozhou Coal & Electricity Group
- Hurst Greenery
- HUS (Helsinki University Hospital)
- Husky Terminal and Stevedoring
- HUST (Huazhong University of Science and Technology)
- Hutchison Drei Austria
- Hutchison Ports
- HXI (Renaissance Electronics & Communications)
- Hyatt Hotels Corporation
- Hydro One
- Hydro Ottawa
- Hydro-Quebec
- Hyperbat
- Hypha (Wireless Innovation)
- Hyster-Yale Materials Handling
- Hytec Inter
- Hytera Communications
- Hyundai AutoEver
- Hyundai Construction Equipment
- Hyundai Doosan Infracore
- Hyundai E&C (Engineering & Construction)
- Hyundai Mipo Dockyard
- Hyundai Mobis
- Hyundai Motor Group
- Hyundai Robotics
- Hyundai Rotem
- i.safe MOBILE
- i2i Systems
- IAG (International Airlines Group)
- IAI (Israel Aerospace Industries)
- iBASIS
- IBC (International Broadcasting Convention)
- IBCH PAS (Institute of Bioorganic Chemistry, Polish Academy of Sciences)
- Iberdrola
- IBM
- IBO Technology Company
- IB-RED
- iBwave Solutions
- Icade
- iCana
- ICASA (Independent Communications Authority of South Africa)
- ICBC (Industrial and Commercial Bank of China)
- ICCRA (International Critical Control Rooms Alliance)
- Ice Mobility
- Ice Norway
- iCERT (Industry Council for Emergency Response Technologies)
- ICG (Icelandic Coast Guard)
- ICL Group
- ICN (Imizu Cable Network)
- ICOE (Imperial County Office of Education)
- Icom
- Iconec
- iConNext
- ICS Holding
- ICU Technologies
- ID:TOLU (Research and Development Laboratory of Tolu)
- iDAQS
- IDEMIA
- Idemitsu
- IDF (Israel Defense Forces)
- IDY Corporation
- IE University
- IEC (Illinois Electric Cooperative)
- IEEE (Institute of Electrical and Electronics Engineers)
- IETF (Internet Engineering Task Force)
- ifak (Institute for Automation and Communication)
- IFEMA
- IFLY Electronics
- ifm
- IFT (Federal Institute of Telecommunications, Mexico)
- IGO (Australia)
- IGOF (International Governmental Operators' Forum)
- IHG (InterContinental Hotels Group)
- IHI Corporation
- IHU Strasbourg (Strasbourg Institute of Image-Guided Surgery)
- IIJ (Internet Initiative Japan)
- IISc (Indian Institute of Science)
- IISI (International Integrated Systems, Inc.)
- IIT (Indian Institute of Technology) Bombay
- IIT (Indian Institute of Technology) Delhi
- IIT (Indian Institute of Technology) Hyderabad
- IIT (Indian Institute of Technology) Kanpur
- IIT (Indian Institute of Technology) Madras
- IKD
- IKIN
- Iliad Group
- IM Technology
- Imagin'Office
- IMAmt (Mato Grosso Cotton Institute)
- IMDA (Infocomm Media Development Authority of Singapore)
- Imec
- Imperial Oil
- IMPTT
- IMR (Irish Manufacturing Research)
- IMSC (Interim Maori Spectrum Commission)
- IMT (Institut Mines-Telecom)
- IMT-2030 (6G) Promotion Group
- Inaba Denki Sangyo
- INACAP
- Inatel (National Institute of Telecommunications, Brazil)
- InCoax Networks
- Indian Army
- Indian Railways
- Indianapolis Fire Department
- Indianapolis Motor Speedway
- Indotel (Dominican Institute of Telecommunications)
- Indra
- InDro Robotics
- INDT (Institute of Technological Development, Brazil)
- Industrial Minera Mexico
- iNET (Infrastructure Networks)
- INEX Microtechnology
- Infineon Technologies
- Infinera
- InfiNet Wireless
- InfiniG
- Infinite Electronics
- InfoLink USA
- Infomark Corporation
- Infoport
- Infosys
- Infovista
- Ingram Micro
- InHand Networks
- INL (Idaho National Laboratory)
- Inland Cellular
- Inmanta
- Inmarsat
- Inner Mongolia Intelligent Coal Company
- Innertron
- InnoGence Technology
- InnoLight Technology
- Innonet
- Innosuisse (Swiss Innovation Agency)
- Innovalia
- Innovate5G
- Innovation Cluster 5G Berlin
- Innovile
- InnoWireless
- INPEX
- inq
- In-Q-Tel
- Inria (French National Institute for Research in Digital Science and Technology)
- Inrico Technologies
- Inseego Corporation
- Inspur
- Insta Group
- Instacom
- Instant Connect
- InstantCom (Romania)
- INSTEP (Institut Teknologi Petroleum PETRONAS)
- Institute of Science Tokyo (Formerly Tokyo Medical and Dental University)
- INSYS icom (INSYS Microelectronics)
- Intec E&C
- Intel Corporation
- Intelbras
- Intelliport Solutions
- Intelsat
- Intenna Systems
- InterDigital
- INTERLEV
- Internet Institute (Slovenia)
- Interop Technologies
- InterTalk Critical Information Systems
- Intracom Telecom
- Intrado Corporation
- Intrepid Networks
- Inventec Corporation
- Invest Ottawa
- INWIT (Infrastrutture Wireless Italiane)
- INZU Group
- IOH (Indosat Ooredoo Hutchison)
- IoT4Net
- IoTAS (IoT & Approval Solutions)
- Iowa State University
- IP Access International
- IP Infusion
- IPAGEON
- IPC Coal
- IP-Connected
- IPITEK (Integrated Photonics Technology)
- IPL (Incitec Pivot Limited)
- IPLOOK Technologies
- iPosi
- IPT (Institute for Technological Research, Sao Paulo)
- IPT (Internet para Todos) Peru
- Iradio Electronics
- Iraqi Ministry of Defense
- IRCCS San Raffaele Hospital
- Iren
- IRFU (Irish Rugby Football Union)
- Iridium Communications
- Irkutsk Oil Company
- IronYun
- Irteya (Russia)
- ISA (International Society of Automation)
- Isala Hospital
- ISCO International
- iSea
- ISED (Innovation, Science and Economic Development Canada)
- Iserlohner Werkstatten
- Ishizaka Sangyo
- ISIS Logiciels & Systemes (ILS Technologies)
- ISL Networks (Japan)
- ISP Supplies
- Israel Fire and Rescue Authority
- Israel Police
- Israel Railways
- Israeli Ministry of Communications
- Israeli Ministry of Defense
- IS-Wireless
- IT Aveiro (Instituto de Telecomunicacoes, Aveiro)
- ITA (Aragon Institute of Technology)
- Italian Army
- Italian Ministry of Defense
- Italian Ministry of Interior
- Italtel
- ITCEN
- ITDRC (Information Technology Disaster Resource Center)
- I-TEC Solutions
- ITN (Independent Television News)
- ITRI (Industrial Technology Research Institute, Taiwan)
- Itron
- ITU (International Telecommunication Union)
- ITU (Istanbul Technical University)
- ITUMA
- IVO (Valencian Institute of Oncology)
- IWT (Innovative Wireless Technologies)
- J:COM (Jupiter Telecommunications)
- Jabil
- JACS Solutions
- Jacto
- JAL (Japan Airlines)
- Jalles Machado
- James Hutton Institute
- Jan De Nul Group
- Japanese Ministry of Defense
- JATONTEC (Jaton Technology)
- Jazz (Pakistan Mobile Communications)
- JBG SMITH Properties
- JCI (Japan Communications Inc.)
- JD Logistics
- Jellinbah Group
- JEMS (Japan EM Solutions)
- JET Connectivity
- Jettech Networks
- Jezetek (Sichuan Jiuzhou Electric Group)
- JFE Engineering
- JFE Steel
- Jiangsu Gian Technology
- Jiangxi Copper Corporation
- Jiaxun Feihong (Beijing Jiaxun Feihong Electrical)
- Jinan Metro
- Jinan USR IoT Technology
- Jinan Yaoqiang International Airport
- Jinchuan Group
- Jinneng Holding Group
- Jio Platforms
- JIT (JI Technology)
- JMA Wireless
- JMPD (Johannesburg Metropolitan Police Department)
- JNT (Jakobstadsnejdens Telefon)
- Joao Goncalves Zarco Secondary School
- John Deere
- Johns Hopkins University
- Johnson Controls
- JOMOO
- Jordanian Armed Forces
- JOTS (Joint Operators Technical Specification) Forum
- JOUAV
- Joyson PlasTec
- JPC Connectivity
- JPS (Jackson Public Schools)
- JPS Interoperability Solutions
- JQL Technologies
- JR East (East Japan Railway Company)
- JRC (Japan Radio Company)
- JRC (Joint Radio Company)
- JRP (Japan Race Promotion)
- JSC Ingenium
- JT IoT
- JTA (Jacksonville Transportation Authority)
- JTC Corporation
- JTOWER
- Juniper Networks
- Junkosha
- Juvare
- JVCKENWOOD Corporation
- K LINE (Kawasaki Kisen Kaisha)
- KAC (Korea Airports Corporation)
- Kacific Broadband Satellites
- Kaelus
- Kaga Cable Television
- KAI (Korea Aerospace Industries)
- Kaifa (Shenzen Kaifa Technology)
- Kailuan Group
- Kaiser Permanente
- Kajeet
- Kalamazoo Resources
- Kalmar
- Kaloom
- Kalray
- KAMAZ
- Kanazawa Cable
- Kansai Electric Power Company
- Kantonspolizei St.Gallen (Cantonal Police of St. Gallen)
- Kantonspolizei Zurich (Cantonal Police of Zurich)
- Kaohsiung City Government
- Kaohsiung City Police Department
- Kaohsiung Exhibition Center
- Karara Mining
- Karrier One
- KATCH Network
- Katela Networks
- KATIM
- Kaupunkiliikenne (Metropolitan Area Transport)
- KAUST (King Abdullah University of Science and Technology)
- Kawasaki Heavy Industries
- KAZ Minerals
- Kazan Metro
- Kazzinc
- KBR
- KBT (Kenbotong Technology)
- KCC (Korea Communications Commission)
- KCCS (Kyocera Communication Systems)
- KCCTech
- Kcell
- KCOE (Kings County Office of Education)
- KDDI Corporation
- KDDI Thailand
- KDSG (Kaduna State Government)
- Keikyu Corporation (Keikyu Electric Railway)
- Keio University
- Kelly Services
- Kementerian Kominfo (Ministry of Communication and Information Technology, Indonesia)
- Kemin Satama
- Kenyan Police Service
- KEPCO (Korea Electric Power Corporation)
- Key Bridge Wireless
- Keysight Technologies
- Keystone Metrofiber
- KFTL (Kingston Freeport Terminal Limited)
- Khasm Labs (Formerly 5G Open Innovation Lab)
- KHNP (Korea Hydro & Nuclear Power)
- Khomp
- Kiana Analytics
- KICOX (Korea Industrial Complex Corporation)
- Kigen
- Kindai University
- Kindroid (Shanghai Jinzhuo Technology)
- King Chulalongkorn Memorial Hospital
- King's College London
- Kirisun Communications
- Kisan Telecom
- KIT (Karlsruhe Institute of Technology)
- KIT (Kumoh National Institute of Technology)
- KiwiCT (Kiwi Communication Technology)
- KKU (Khon Kaen University)
- KLA Laboratories
- Klas Telecom
- Klein Electronics
- Kleos
- Klimaoprema
- KMA (Korea Military Academy)
- KMW
- Knightscope
- KNPA (Korean National Police Agency)
- KOAMTAC
- Kobe University
- Koblenz University of Applied Sciences
- Koch Engineered Solutions
- Koch Industries
- Koelnmesse
- Kolibri Systems
- Kollmorgen
- Komatsu
- KOMIPO (Korea Midland Power)
- KONE Corporation
- Konecranes
- Konica Minolta
- Koning & Hartman (Axians/VINCI Energies)
- KONTEL
- Kontron
- Kontron Transportation
- KORAIL (Korea Railroad Corporation)
- KORE Wireless
- KOREN (Korea Advanced Research Network)
- KPCN (Dutch Caribbean Police Force)
- KPMG
- KPN
- KRC Genk
- KRNA (Korea Rail Network Authority)
- KRRI (Korea Railroad Research Institute)
- KRS (Katanning Research Station)
- KSEC (Kunming Shipbuilding Equipment Corporation)
- KT Corporation
- KT SAT
- KTH Royal Institute of Technology
- KU (Kasetsart University)
- KU Leuven
- Kudelski Group
- Kudelski Security
- KUKA
- Kumagai Gumi
- Kumu Networks
- Kuraray
- KVSC (Kankakee Valley School Corporation)
- KVVH
- K-water (Korea Water Resources Corporation)
- Kwikbit
- K-Won
- Kwong Wah Hospital
- Kyland Technology
- Kymeta Corporation
- KymiRing
- Kyndryl
- Kyocera Corporation
- Kyodo Television
- Kyoto University
- Kyrio
- Kyung Hee University
- Kyushu Electric Power Company
- Kyushu Institute of Technology
- Kyushu Sangyo University
- Kyushu University
- KZ TECH (KZ Broadband Technologies)
- L&T (Larsen & Toubro)
- L&T Heavy Engineering
- L3Harris Technologies
- LACROIX Environment
- LACROIX Group
- Laird Connectivity
- Landis+Gyr
- Landmark Dividend
- Langkawi Municipal Council
- Lanner Electronics
- Lantronix
- Lanzhou Rail Transit
- Laois County Council
- LA-RICS (Los Angeles Regional Interoperable Communications System)
- Las Vegas Metropolitan Police Department
- Las Vegas Raiders
- Lattice Semiconductor
- Latvian Ministry of Defense
- Lawrence J. Ellison Institute for Transformative Medicine
- LCR Embedded Systems
- LCRA (Lower Colorado River Authority)
- Leadtek Research
- Leataata Floyd Elementary School
- Lebanese Ministry of Interior and Municipalities
- Lebanon's ISF (Internal Security Forces)
- LEC
- Leenos Corporation
- Leidos
- Lekha Wireless Solutions
- Lemko Corporation
- LENNIIKHIMMASH
- Lenovo
- Leonardo
- Leuven Police
- Levira
- Lextrum
- LF (Linux Foundation)
- LfULG (Saxony State Office for Environment, Agriculture and Geology)
- LG Chem
- LG CNS
- LG Corporation
- LG Electronics
- LG Innotek
- LG Uplus
- LGS Innovations
- LHIND (Lufthansa Industry Solutions)
- Liaoning Provincial People's Hospital
- Liberty Global
- Lierda Science & Technology Group
- Lifecycle Software
- Ligado Networks
- Ligga (Brazil)
- Lightron
- Lijiang Police
- Lime Microsystems
- Linde Energi
- Lindsay Broadband
- Linkem
- Linksys
- Linx Technologies
- Linyi Qiyang International Airport
- LINZ AG TELEKOM
- LIONS Technology
- Liquid Intelligent Technologies
- LIS (Laboratory of Infocommunication Networks)
- Lisheng Fujian Communications
- Lishui Municipal Emergency Management Bureau
- LITE-ON Technology Corporation
- LitePoint
- Little Priest Tribal College
- LittleBird (LevelUp)
- LiuGong Machinery
- Live Nation Entertainment
- Liverpool 5G
- LiveU
- LMCC (Land Mobile Communications Council)
- LMT (Latvijas Mobilais Telefons)
- LNER (London North Eastern Railway)
- LNG Canada
- LNWH (London North West University Healthcare NHS Trust)
- Local2U (West Virginia)
- Lociva
- Lockheed Martin Corporation
- Lockheed Martin Space
- Lodz University of Technology
- Logan Aluminum
- Logicalis
- Logicall
- LogicTree IT Solutions
- LOGISTEED
- LongFi Solutions
- Longsung Technology
- Lookout
- LRM-COM
- LS ELECTRIC
- LS Mtron
- LS telcom
- LSU Schaberle
- LTE-X
- LTTS (L&T Technology Services)
- Lubeck Port Authority
- Lucca 5G Testbed
- Luceor
- Lufthansa Technik
- Luka Koper
- Lulea University of Technology
- Lumen Technologies
- Lumentum
- Lumineye
- Luna Rossa Prada Pirelli
- Lundin Mining Corporation
- LUSD (Lindsay Unified School District)
- LUT University (Lappeenranta-Lahti University of Technology)
- Luther Burbank School District
- LuxCarta
- Luxoft
- Lyfo
- Lynchburg City Schools
- Lynk Global
- LyondellBasell Industries
- Lyse
- M & J Wilkow
- M.U.S.T. (Macau University of Science and Technology)
- M/C Partners
- M1
- m3connect
- M4PS (Mobility 4 Public Safety)
- MAC (Metropolitan Airports Commission)
- MACA Mining
- MACC Base (Milford Area Communications Center)
- MacLean Engineering
- MACOM
- Madagascar National Police
- MadCo 911 (Huntsville-Madison County 9-1-1 System)
- Madison Festivals
- Madison International Realty
- Madrid Metro
- Maebashi City Fire Department
- Maehara Elementary School
- MAFF (Ministry of Agriculture, Forestry and Fisheries, Japan)
- Magic Software Group
- Magna Electronics
- Magna International
- Magna Steyr
- Magnaquest Technologies
- Magyar Telekom
- Maharaj Nakorn Chiang Mai Hospital
- Mahidol University
- Mahindra & Mahindra
- Maipu Communication Technology
- Maja Systems
- Makati City DRRMO (Disaster Risk Reduction & Management Office)
- Malaga City Council
- Malaga Local Police
- Malaga Port Authority
- Malaga TechPark - PTA (Andalusia Technology Park)
- Malarenergi
- Malaysia Airports
- Mammoth Lakes Fire Protection District
- Mandarin Oriental Hotel Group
- MantisNet
- Manufacturers Alliance
- MAPA (Ministry of Agriculture, Livestock and Food Supply, Brazil)
- MarchNet
- Marfret
- Marienpark Berlin
- Markoja
- Marlink
- Marquistech
- Martin UAV
- Marubeni Corporation
- Marubeni Network Solutions
- Marubun Corporation
- Marvell Technology
- MASMOVIL
- MasOrange
- Masteel Group
- Mathworks
- Matrix Electronica
- MATRIXX Software
- MatSing
- Maven Wireless
- Mavenir
- Maxar Technologies
- MaxComm
- Maxis
- MaxLinear
- Mayo Clinic
- MBIE (Ministry of Business, Innovation and Employment, New Zealand)
- MBPJ (Petaling Jaya City Council)
- MC Technologies
- McAllen ISD (Independent School District)
- MCAS (Michigan City Area Schools)
- MCLabs
- McLaren Applied
- McMaster University
- MCMC (Malaysian Communications and Multimedia Commission)
- MCP (Mission Critical Partners)
- MCS Benelux
- MCSD (Murray City School District)
- MD (MICRODRIVE)
- Mdex
- MEASAT Satellite Systems
- MECSware
- Media Broadcast
- Mediane Systeme
- Mediaset Spain
- MediaTek
- Meeami Technologies
- Meep/Synch (Elbit Systems)
- MegaChips Corporation
- MegaFon
- Megazone Cloud
- Megh Computing
- Meglab
- MeiG Smart Technology
- Meizu
| - Melia Hotels International
- Memorial Health System
- Mentura Group
- Menzies Mining & Exploration Operations
- Meo Empresas
- MER Group
- Mercedes-Benz Group
- Merck Group
- Mesa Public Schools
- MESS (Turkish Employers' Association of Metal Industries)
- Messe Berlin
- Meta
- Metalloinvest
- Metanoia Communications
- Metaswitch Networks
- Metawave Corporation
- Metismake
- Metro Trains Melbourne
- MetTel
- Mexican National Guard (Formerly Federal Police)
- Mexico City Metro
- MFA (Alliance for Private Networks)
- MGA Technologies
- MGM Resorts International
- MHA (Ministry of Home Affairs, Singapore)
- MHD (Muhan Digital)
- MIA (Miami International Airport)
- Miami-Dade Police Department
- MIC (Ministry of Internal Affairs and Communications, Japan)
- MIC Nordic
- MICAS-RF (MICAS Shenzhen Telecommunication)
- Michigan National Guard
- MiCOM Labs
- Micran
- Microamp Solutions
- Microchip Technology
- Microlab
- Micron Technology
- MicroNova
- MicroSeismic
- Microsoft Corporation
- Microwave Networks
- MiCTA
- Mid Sweden University
- Midea Group
- Miele
- MIIT (Ministry of Industry and Information Technology, China)
- MikroTik
- Mikwave (Guangdong Mikwave Communication Tech)
- Milesight
- Milestone Systems
- Miliwave
- Mill Creek Residential Trust
- Miller Electric Company
- MilWorks Solutions
- MiMOMax
- Minas Gerais State Military Police
- MindMade (WB Group)
- Mineracao Morro do Ipe
- MineRP
- Mines Nancy
- Minnesota Department of Public Safety
- MinRes (Mineral Resources)
- Minsait
- MIPS
- MiR (Mobile Industrial Robots)
- Miracle Mile Shops
- MIRAIT ONE Corporation
- Misawa Homes
- MiTAC Computing Technology Corporation
- MitraStar Technology
- MITRE Corporation
- Mitsubishi Electric Corporation
- Mitsubishi Estate
- Mitsubishi HC Capital
- Mitsubishi Heavy Industries
- Mitsui & Co.
- Mitsui Fudosan
- Mitsui Resources
- MIXI
- MKI (Mitsui Knowledge Industry)
- ml&s
- MLB (Major League Baseball)
- MLGW (Memphis Light, Gas and Water)
- MLIT (Ministry of Land, Infrastructure, Transport and Tourism, Japan)
- MLT (Maskin & Laserteknik)
- MMG
- MMK (Magnitogorsk Iron & Steel Works)
- MMU (Multimedia University)
- MND (Ministry of National Defense, South Korea)
- MOBI (Mobi Antenna Technologies)
- Mobil Group (Russia)
- Mobilaris
- Mobile Inform Group
- Mobile Mark
- Mobile Tornado
- Mobile Viewpoint
- MobileComm Professionals (UST)
- MobileDemand
- MobileIron
- MobileTek (Shanghai Mobiletek Communication)
- Mobileum
- Mobilicom
- Mobilitie
- Mobilus Labs
- Mobily (Etihad Etisalat)
- MOBiSENSE
- Mobiveil
- MOD (Ministry of Defence, United Kingdom)
- Modular Mining Systems
- Moerdijk Port Authority
- MOF (Ministry of Oceans and Fisheries, South Korea)
- MOIS (Ministry of the Interior and Safety, South Korea)
- Molex
- Mondelez International
- Monmouth County Sheriff's Office
- Monogoto
- Monstra
- Moray Offshore Renewable Power
- Mori Building Company
- Morningcore Technology
- Morningstar Corporation
- Morris School District
- Mortenson
- Moscow City Police
- Moscow Metro
- Moseley Associates
- MosoLabs
- Motive Infrastructure Solutions
- Motive Power Marine
- MotorLand Aragon
- Motorola Mobility
- Motorola Solutions
- Mott MacDonald
- Mountain View Whisman School District
- Movandi
- Movistar Chile
- Moxa
- MP Antenna
- MPA (Maritime and Port Authority of Singapore)
- MPF (Mauritius Police Force)
- MPS (Ministry of Public Security, China)
- MRC (Mobile Radio Center)
- MRK Media
- MRS Logistica
- MRT Technology (Suzhou)
- MSB (Civil Contingencies Agency, Sweden)
- MSB (M S Benbow & Associates)
- MSIT (Ministry of Science and ICT, South Korea)
- MSSA (Mobile Satellite Services Association)
- MST Global (Mine Site Technologies)
- MT (Marine Technologies)
- MTA (Metropolitan Transportation Authority, New York)
- MTC (Manufacturing Technology Centre, United Kingdom)
- MTI (Microelectronics Technology Inc.)
- MTI Wireless Edge
- MTN Group
- MTR (Mass Transit Railway)
- MTS (Mobile TeleSystems)
- MTU Aero Engines
- MUGLER
- MultiTech (Multi-Tech Systems)
- Munich Airport
- Municipal Council of Cascais
- MuralNet
- Murata Manufacturing
- Mushroom Networks
- Musterion Advisors
- Mutualink
- MVI Group
- MVM Group
- MW (Matrix Wave)
- MxD (Manufacturing x Digital)
- MYCOM OSI
- Mynaric
- MYT Electronics
- N.A.T.
- Nabiq
- Nable Communications
- Nacka Energi
- Nacogdoches ISD (Independent School District)
- Nagasaki University Hospital
- Nagoya Grampus
- NAIST (Nara Institute of Science and Technology)
- Nanjing Lukou International Airport
- Nanjing Metro
- Nanjing Municipal Government
- Nanning Public Security Bureau
- Nanning Wuxu International Airport
- NanoSemi
- Napatech
- Naragakuen University
- Narita International Airport
- NASCAR (National Association for Stock Car Auto Racing)
- Nash Technologies
- National and Kapodistrian University of Athens
- National Defense Medical College (Japan)
- National Grid Group
- National Police of Colombia
- National Police of the Netherlands
- NATO (North Atlantic Treaty Organization)
- Naval Group
- Navantia
- NAVER Cloud
- NAVER Corporation
- Navya
- NBA (National Basketball Association)
- NBN Co
- NBTC (National Broadcasting and Telecommunications Commission, Thailand)
- NC State (North Carolina State University)
- NCC (National Communications Commission, Taiwan)
- NCC (National Composites Centre, United Kingdom)
- NCRTC (National Capital Regional Transport Corporation)
- NCSR (National Center for Scientific Research) Demokritos
- NDHU (National Dong Hwa University)
- NEA (National Environment Agency, Singapore)
- Nearby Computing
- NEC Corporation
- Nedaa
- NEDO (New Energy and Industrial Technology Development Organization, Japan)
- Nemergent Solutions
- Nemko
- Neoenergia
- Neolink Communications Technology
- NEOM
- NeoPlane
- Neoway Technology
- Neptune Communications
- Neragon Networks
- Neste
- Nesten
- Nestle
- Net AI
- Net One Partners
- Net1 PH (Broadband Everywhere Corporation)
- Netas
- NETBEE (NET-Automation)
- NetCity (GEOS Telecom/GEOS Holding)
- Netcracker Technology
- NetFoundry
- Netgear
- NetGenuity
- Netivei Israel (National Transport Infrastructure Company)
- NetModule
- Netmore Group
- NetNordic Group
- NETSCOUT Systems
- Netsia
- Netsync Network Solutions
- Netvision Telecom
- Network Rail
- Netz Leipzig
- Neutral Wireless
- Neutroon Technologies
- Nevada Department of Transportation
- New H3C Technologies
- New Hampshire Department of Safety
- New J
- New Postcom Equipment
- New Trend International Logis-Tech
- New Zealand Police
- NewCore Wireless
- Newcrest Mining
- NewEdge Signal Solutions
- NewGens (South Korea)
- Newmont Corporation
- Newport Utilities
- NEXCOM International
- Nexedi
- Nexign
- Nexpring
- Next.e.GO Mobile
- NextEPC Korea (COONTEC)
- NextGen (Japan)
- NextGen (Kelly Telecom)
- Nextivity
- NextLight
- Nextlink Internet
- NextNav
- NextWave
- Nextworks
- NFL (National Football League)
- NG Bailey
- ng4T
- NGA (Next G Alliance)
- NGCC (Next-Generation Critical Communications, New Zealand)
- NGIC (Next Gen Infraco)
- NGK Group (NGK Insulators)
- NGMN (Next-Generation Mobile Networks) Alliance
- NGNAPPS (Next Generation Applications)
- ng-voice
- NHL (National Hockey League)
- NHS (National Health Service, United Kingdom)
- NI (National Instruments)
- NIA (National Information Society Agency, South Korea)
- Niam
- NICC (Nebraska Indian Community College)
- NICE
- NICE TV (Niikawa Information Center)
- Nigeria Police Force
- NIIR (Radio Research and Development Institute, Russia)
- NimbeLink
- NineTwelve
- Ningbo Rail Transit
- Ningbo-Zhoushan Port
- Ningxia Baofeng Energy Group
- Nippon Airport Radio Services
- Nippon Dentsu
- Nippon Express
- Nippon Koei
- Nippon Steel Corporation
- Niral Networks
- Nissan Motor Company
- Nitto Denko Corporation
- NKG (New Kinpo Group)
- Nkom (Norwegian Communications Authority)
- NLMK Group
- NLT Telecom
- NMIS (National Manufacturing Institute Scotland)
- NMU (Northern Michigan University)
- NNS (Newport News Shipbuilding)
- Nobu Hospitality
- Node-H
- Noetsu Cablenet
- Nokia
- Nomad Digital
- Nopparat Rajathanee Hospital
- NORCAT
- Nordic Semiconductor
- Nordic Telecom
- Norfolk Southern Corporation
- Nornickel (Norilsk Nickel)
- Norsat International
- Norske tog
- North Lanarkshire Council
- North Weijiamao Coal Power
- Northcom Solutions
- Northeastern University
- Norther (Belgium)
- Northern Powergrid
- Northern Star Resources
- Northland Power
- Northrop Grumman Corporation
- Northumbrian Water
- Northwest Seaport Alliance
- NorthWestern Energy
- Norwegian Air Ambulance
- Norwegian Armed Forces
- Norwegian Polar Institute
- Norwegian Police Service
- NOS (Portugal)
- NOTION Information Technology
- Nottinghamshire County Council
- Nova Labs (Helium)
- NOVA Spektrum
- Novadelta Cafes (Nabeiro Group)
- NovaWind
- Novaya Gornaya (New Mining Management Company)
- NOVEC
- NOVELSAT
- Novo Resources
- NOW Corporation
- NPF (National Police Federation)
- NPL (National Physical Laboratory, United Kingdom)
- NPS (Naval Postgraduate School)
- NRB (Network Research Belgium)
- NRECA (National Rural Electric Cooperative Association)
- NRK (Norwegian Broadcasting Corporation)
- NRTC (National Rural Telecommunications Cooperative)
- NS (Nederlandse Spoorwegen)
- NS Solutions Corporation
- NSC (National Spectrum Consortium)
- Nsight
- NSU (Nova Southeastern University)
- NSW (New South Wales) Telco Authority
- NSW (Nivelsteiner Sandwerke and Sandsteinbruche)
- NT (National Telecom)
- NTC Corporation
- NTC Corporation (Japan)
- NTMA (National Treasury Management Agency, Ireland)
- NTMore (Network Technology More)
- NTNU (Norwegian University of Science and Technology)
- NTT AgriTechnology
- NTT Business Solutions
- NTT Com (NTT Communications)
- NTT Com Asia (Hong Kong)
- NTT DATA
- NTT DoCoMo
- NTT East
- NTT Group
- NTT West
- NTTe-Sports
- NTU (Nanyang Technological University)
- NTU (Navajo Technical University)
- NTU (Nottingham Trent University)
- Nubia Technology
- Nuestra Senora del Prado General Hospital
- NUH (National University Hospital)
- NuLink (Switzerland)
- NuRAN Wireless
- Nurburgring Motorsports Complex
- Nurlink Technology
- NurnbergMesse
- NUS (National University of Singapore)
- Nutaq Innovation
- Nutrien
- NVIDIA Corporation
- NVision Group
- NVL (Naval Vessels Lurssen) Group
- NWS (Network Wireless Solutions)
- NXP Semiconductors
- NYBSYS
- NYCU (National Yang Ming Chiao Tung University)
- NYP (Nanyang Polytechnic)
- NYPA (New York Power Authority)
- NYPL (New York Public Library)
- O2 Czech Republic
- Oakland Fire Department
- Oasis Smart SIM
- Obayashi Corporation
- OBB (Austrian Federal Railways)
- Obihiro University of Agriculture and Veterinary Medicine
- Obvios
- OC Transpo
- Ocado
- Ocado Technology
- Oceaneering International
- Oceus Networks
- OCI Global
- OCP (Open Compute Project) Foundation
- Octasic
- O-Cubes
- Odido (Formerly T-Mobile Netherlands)
- ODN (Orbital Data Network)
- OE Solutions
- OFCA (Office of the Communications Authority, Hong Kong)
- Ofcom (Office of Communications, United Kingdom)
- OFS Fitel
- Ohio State University
- Ohmio
- Ohmori Chrome
- Oi
- OIV Digital Signals and Networks
- Okaya Steel
- OKI Electric Industry
- OMA SpecWorks (Open Mobile Alliance)
- Omantel
- Omega Wireless
- Omnispace
- Omnitele
- Omnitron Systems
- Omnitronics
- OMRON Corporation
- OMSS (Oakland Maritime Support Services)
- ONCF (Moroccan National Railways Office)
- Oncor Electric Delivery Company
- Ondas Networks
- One New Zealand (Vodafone New Zealand)
- One2many
- one6G Association
- OneLayer
- OnePlus
- OneScreen
- OneSimCard
- OneWeb
- ONEX Technology Systems & Business Solutions
- ONF (Open Networking Foundation)
- OnGo Alliance
- Onomondo
- Ontix
- Onwave
- Ooredoo
- Opanga Networks
- OPC Foundation
- Open Edge Computing Initiative
- Open RAN Policy Coalition
- Open Valley
- Opencode Systems
- Openet
- OpenInfra (Open Infrastructure) Foundation
- OpenSky (Nigeria)
- Openvia Mobility
- OPPO
- O'Prueba Technology
- OPTAC-X
- OPTAGE
- OptConnect
- Optical Zonu Corporation
- Opticoms
- Optimum Mobile (Altice USA)
- Option
- OptiTel Australia
- Optiva
- OPT-NC (OPT New Caledonia)
- Optus (Singtel)
- OQ Technology
- Oracle Communications
- Oracle Corporation
- O-RAN Alliance
- Orange
- Orange Belgium
- Orange Business Services
- Orange Jordan
- Orange Poland
- Orange Romania
- Orange Spain
- ORBCOMM
- ORE (Offshore Renewable Energy) Catapult
- Ori Industries
- Oriental Cable Network
- Origin Energy
- Orion Labs
- ORLEN
- ORS Group (Austrian Broadcasting Services)
- Orsted
- OSA (OpenAirInterface Software Alliance)
- Osaka Gas
- Osaka Metro
- Osaka University
- Oscilloquartz
- OSE (Hellenic Railways Organization)
- OSIsoft
- Oslo University Hospital
- OsloMet (Oslo Metropolitan University)
- Osnabruck University of Applied Sciences
- OSRAM
- Ostfalia University of Applied Sciences
- Otary
- OTE Group
- OTEKO Group
- OTH Amberg-Weiden (East Bavarian Technical University of Applied Sciences)
- OTH Regensburg (Regensburg University of Applied Sciences)
- Ottawa Fire Services
- Ottawa Paramedic Service
- Ottawa Police Service
- Outokumpu
- OV (Manx Telecom)
- OVGU (Otto-von-Guericke University Magdeburg)
- OVHcloud
- Oxy (Occidental Petroleum Corporation)
- OYS (Oulu University Hospital)
- OZ Minerals
- P&G (Procter & Gamble)
- P.I. Works
- PACCAR
- PacStar (Pacific Star Communications)
- Padtec
- Pakistan Air Force
- Pakistan Army
- Pakistan Ministry of Interior
- Pakistan Navy
- Palo Alto Networks
- PAMA (PT Pamapersada Nusantara)
- Panasonic Avionics Corporation
- Panasonic Connect
- Panasonic Holdings Corporation
- Panda Electronics
- Pangang Group
- PanOptis
- Panorama Antennas
- Panoramic Resources
- Paradise Mobile
- Parallel Wireless
- Paramount Global
- Parana State Secretariat of Public Security
- Parks Canada
- Parkwind
- Parkwon
- Parlier Unified School District
- Parsec Technologies
- Particle
- Partner Communications
- PAStech
- Pato Branco City Council
- Patrocinium Systems
- Patterson Unified School District
- Patton
- Pavlov Media
- Pays de la Loire Chamber of Agriculture
- PBA (Philippine Basketball Association)
- PBE Axell (Formerly Axell Wireless)
- PBR (Professional Bull Riders)
- PCCW
- PCK Raffinerie
- PCs for People
- PCS Technologies
- PCT (Piraeus Container Terminal)
- PCT Cartuja (Cartuja Science and Technology Park)
- PCTEL
- PCTEST Lab (PCTEST Engineering Laboratory)
- PD Ports
- PDRM (Royal Malaysia Police)
- PDVSA (Petroleos de Venezuela)
- PEA (Provincial Electricity Authority, Thailand)
- Peabody Energy
- Peatalk Corporation
- Peel Regional Police
- Pegatron Corporation
- Pei Tel Communications
- Pektron
- Pelindo (PT Pelabuhan Indonesia)
- Pelion
- Pembroke Resources
- Pemex (Petroleos Mexicanos)
- Penguin Solutions
- Pentanet
- Pente Networks
- Pentonet
- People's Hospital of Xinchang County
- Peplink (Plover Bay Technologies)
- Pepperl+Fuchs
- Pepro
- Peraso
- Peraton Labs
- Percepto
- Perle Systems
- Petrobras (Petroleo Brasileiro)
- PetroChina/CNPC (China National Petroleum Corporation)
- PETRONAS (Petroliam Nasional)
- PGA of America
- PGA Tour
- PGE (Polish Energy Group)
- PGE (Portland General Electric)
- PGE Dystrybucja
- PGE Systemy
- Pharrowtech
- Philip Morris International
- Philippine Air Force
- Philippine Army
- Philippine Red Cross
- Philips
- Phillips 66
- Phirst Technologies
- Phluido
- Phoenix Contact
- Phoenix Primary School (Liverpool)
- Phytium Technology (Tianjin Phytium Information Technology)
- PHYTunes
- PIA (PSBN Innovation Alliance)
- Picocom
- Pierson Wireless
- PIK PBA (Russia)
- Pioneer Natural Resources
- Pitkin County Telecommunications
- Pivot Technology Services
- Pivotal Commware
- Pivotel Group
- Pivotone
- Pixavi
- Pixel Health
- PK Solutions
- PKP (Polish State Railways)
- PLA (People's Liberation Army)
- PLA Navy (People's Liberation Army Navy)
- Plainview ISD (Independent School District)
- Platform9
- PLDT
- Pletronics
- Plextek
- Plintron
- PLINX (Wearable Link)
- Plus (Polkomtel)
- PMeV (German Professional Mobile Radio Association)
- PML (Plymouth Marine Laboratory)
- PMRDA (Pune Metro Region Development Authority)
- PMY Group
- PNNL (Pacific Northwest National Laboratory)
- PNP (Philippine National Police)
- POCSTARS
- Pod Group
- Polaris Networks
- Polaris Wireless
- Polish National Police
- Politecnico di Torino
- Pollen Mobile
- Polska Spolka Gazownictwa
- Polymetal International
- Polyus
- POM West-Vlaanderen (Provincial Development Agency of West Flanders)
- Porsche
- Porsche Engineering
- Port Authority of Douala
- Port Authority of New York and New Jersey
- Port of Aveiro
- Port of Blyth
- Port of Kokkola
- Port of Long Beach
- Port of Los Angeles (Los Angeles Harbor Department)
- Port of Lulea
- Port of Oakland
- Port of Oulu
- Port of Ploce Authority
- Port of Pori
- Port of Tokyo
- Port of Turku
- Port of Tyne
- Port Oostende
- Port System Authority of the Northern Tyrrhenian Sea
- Portuguese Navy
- Portuguese Red Cross
- POSCO
- POSCO Australia
- Positron Access Solutions
- Posiva
- POST Luxembourg
- Posten (Norwegian Postal Service)
- PoteNit
- Potevio
- Poutanet
- Powertech Labs
- PowerTrunk
- PPA (Pilbara Ports Authority)
- PPC (Power Plus Communications)
- PPC (Public Power Corporation)
- PPC Broadband
- Prague Metro
- PRASA (Passenger Railway Agency of South Africa)
- Precision OT (Optical Transceivers)
- PRESCOM
- PRF (Purdue Research Foundation)
- PrimeTel
- Prinzhorn Group
- PrioCom
- Proef
- Pro-M (Hungary)
- Pronto
- Proptivity
- Proscend Communications
- PROSE Technologies
- Prospecta Utilities
- Protection Civile des Vosges
- PROTEI
- Protezione Civile (Department of Civil Protection, Italy)
- Proxim Wireless Corporation
- Proximie
- Proximus
- Proximus NXT
- Pryme Radio Products
- Pryor Creek Music Festivals
- PSA International
- PSA Italy
- PSBTA (Public Safety Broadband Technology Association)
- PSCA (Punjab Safe Cities Authority)
- PSCE (Public Safety Communication Europe)
- PSE (Polish Power Grid Company)
- pSemi Corporation
- PSNI (Police Service of Northern Ireland)
- PSU (Prince of Songkla University)
- PT Freeport Indonesia
- PT INTI (PT Industri Telekomunikasi Indonesia)
- PT LEN Industri
- PT Net Satu Indonesia (Net1 International)
- PTA (Pakistan Telecommunication Authority)
- PTA (Public Transport Authority of Western Australia)
- PTC
- PTD (Posts and Telecommunications Department, Myanmar)
- PTI (Itaipu Technological Park)
- PTI (Persistent Telecom Inc.)
- PTS (Planetary Transportation Systems)
- PTS (Post and Telecom Authority, Sweden)
- PTT Group
- PTV (Public Transport Victoria)
- Public Safety Canada
- Publicis Sapient
- PUC-Rio (Pontifical Catholic University of Rio de Janeiro)
- PUCV (Pontifical Catholic University of Valparaiso)
- Puerto Rico Police Department
- Puloli
- Pulsara
- Pulse Electronics
- Purdue University
- PureSoftware
- Pycom
- Pyramid Network Services
- PySENSE
- Qatar Armed Forces
- Qatar MoD (Ministry of Defense)
- Qatar MOI (Ministry of Interior)
- Qatar Police
- QCoal Group
- QCT (Quanta Cloud Technology)
- QGC (Shell)
- Qhotels
- QinetiQ
- Qingdao Police
- Qingdao Saline-Alkali Tolerant Rice Research & Development Center
- Qinhuangdao Public Security Bureau
- Qiqihar Municipal Public Security Bureau
- Qiqihar Police
- QMetco
- QNAP Systems
- Qorvo
- QTnet
- QTV (Quipu TV Limited)
- QuadGen Wireless Solutions
- Qualcomm
- Quanta Computer
- Quantum Wireless
- QuayChain
- Qube Holdings
- Qubicom
- Qucell Networks
- Quebecor
- Quectel Wireless Solutions
- Queensland Police Service
- Queensland Rail
- Quintel
- Qulsar
- Quortus
- Qwake Technologies
- Qwilt
- R Systems (Computaris International)
- R3 Solutions
- RAC (Railway Association of Canada)
- RACOM (Czech Republic)
- RACOM Corporation
- RACSA (Radiografica Costarricense)
- RAD
- RADCOM
- Radiall
- Radio Gigabit
- Radio IP Software
- RadioMobile
- Radisys
- RADTONICS
- Radware
- RADWIN
- RAF (Royal Air Force)
- Rafael Advanced Defense Systems
- Rai (Radiotelevisione Italiana)
- RAI Amsterdam
- Rai Way
- RAICO (Chile)
- Raisecom
- Raizen
- Rajant Corporation
- Rajavithi Hospital
- Rakon
- Rakuten Mobile
- Rakuten Symphony
- RAKwireless
- Ramathibodi Hospital
- Rambam Health Care Campus
- Ramen Networks
- Range Networks
- Ranger Systems
- Ranplan Wireless
- Rapid.Space
- RapidDeploy
- RapidSOS
- Rapidtek Technologies
- RATP Group
- Rave Mobile Safety
- Raycap
- Raycom Ventures
- RCMP (Royal Canadian Mounted Police)
- RCN (Reinan Cable Network)
- RCS Telecommunications
- RCT (Remote Control Technologies)
- Ready Wireless
- REALLY Communications
- Realme
- RealWear
- Red 5
- Red Bull Stadion Munchen
- Red Electrica
- Red Hat
- Red Lion Controls
- RED Technologies
- REDCOM Laboratories
- Redevi
- RedZinc
- Redzone Wireless
- Regis Resources
- Reliance Industries
- Reliance Jio Infocomm
- REMEC Broadband Wireless Networks (Bridgewave Communications/SAGE SatCom)
- Renault Group
- Renesas Electronics Corporation
- REPLY
- Repsol
- RESCAN (Canary Islands Network for Emergency and Security)
- Rescue 101 SAR (Search and Rescue)
- Rescue 42
- Resolute Forest Products
- Responder Corp
- Reutlingen University
- RF Connect
- RF DSP
- RF Industries
- RF MORECOM
- RF Window
- RF-Comm
- RFHIC Corporation
- RFI Technology Solutions
- RFS (Radio Frequency Systems)
- RFTech
- RFWEL Engineering
- RGE (Rio Grande Energia)
- Rheinmetall
- Rhode Island Emergency Management Agency
- Rhodos Consulting Group
- Ribbon Communications
- Ricoh
- Ricon Mobile
- Riedel Communications
- Riga City Council
- Riga Technical University
- RigNet (Viasat Energy Services)
- Rigstar Industrial Telecom
- Rijkswaterstaat (Dutch Ministry of Infrastructure and Water Management)
- RIKS (State Infocommunication Foundation, Estonia)
- Riman Korea
- RIMEDO Labs
- Rincon de la Victoria Local Police
- Ringer Mobile (Teliax)
- Rio de Janeiro Fire Department
- Rio Grande do Sul State Secretariat of Public Security
- Rio Tinto
- RiPSIM Technologies
- RISE (Research Institutes of Sweden)
- RIVA Networks
- Rivada Networks
- Rivada Space Networks
- Rivas Vaciamadrid City Council
- RKTPL (RK Telesystem Private Limited)
- Roaring Fork School District
- Robert Bosch
- Robertsfors Municipality
- Robin.io
- ROBOPAC
- RoboTechnik
- ROBUR Industry Service Group
- Robustel
- Rockwell Automation
- Rogers Business
- Rogers Communications
- Rogers Corporation
- Rohde & Schwarz
- Rohill
- ROK (Republic of Korea) Army
- ROKAF (Republic of Korea Air Force)
- ROKN (Republic of Korea Navy)
- Rolling Wireless
- Rolloos
- Rolloos (FMJ Group)
- Roma Capitale
- ROP (Royal Oman Police)
- Rosatom
- Rosenberger
- Rostec
- Rostelecom
- Round Oak Minerals
- Roundrock Technology
- Roy Hill Holdings
- Royal Australian Navy
- Royal Bahamas Police Force
- Royal Decree for Public Safety Broadband
- Royal Flying Doctor Service (Australia)
- Royal Marines
- Royal Navy
- Royal Netherlands Military Police
- Royal New Zealand Air Force
- Royal Norwegian Navy
- Royal Schiphol Group
- Royal Thai Navy
- Royal Thai Police
- Royal Wagenborg
- Royal Welsh Agricultural Society
- Royole Corporation
- RSCC (Russian Satellite Communications Company)
- RSConnect
- RTBF (Belgian Radio-Television of the French Community)
- RTE (Raidio Teilifis Eireann)
- RTL Deutschland
- RTO Wireless
- RTP (Radio e Televisao de Portugal)
- RTRI (Railway Technical Research Institute, Japan)
- RTVE (Radiotelevision Espanola)
- RTX A/S
- RTX Corporation (Formerly Raytheon Technologies)
- RTx Technology
- RUB (Ruhr University Bochum)
- Rudin Management Company
- RugGear
- RuggON Corporation
- Ruijie Networks
- Rumo
- RunEL
- Ruralink Broadband
- Rush University System for Health
- Rushmere Technology
- Rutronik
- RWG (Rotterdam World Gateway)
- RWTH Aachen University
- Ryoden Corporation
- RZD (Russian Railways)
- S&T Iskratel
- SA Power Networks
- Saab
- Saankhya Labs
- Saarland University
- SABIC
- SAC iWATA (Smart Agriculture IWATA)
- SAC Wireless
- Sacramento City Council
- Sacred Wind Communications
- SAE IT-Systems
- SAF (Singapore Armed Forces)
- SAF Tehnika
- Safari Solutions
- SAFE Boats International
- Safe-Com Wireless
- SafeMobile
- Safe-Net Forum
- Safer Buildings Coalition
- Safran
- Saga TV
- Sagan Tosu (Sagan Dreams)
- Sagemcom
- SageRAN (Guangzhou SageRAN Technology)
- Saguna Networks
- SAI Technology
- SAIC (Science Applications International Corporation)
- SailGP
- Saint Paul's Hospital (Taiwan)
- Saitama Medical University
- Sakhalin Energy
- SalMar
- Salzburg AG
- Salzburgring
- Salzgitter
- SAM (Sul Americana de Metais)
- Samji Electronics
- Samsung
- SAMWON FA
- Samyoung Celetra
- San Diego Fire-Rescue Department
- San Diego Padres
- San Diego Police Department
- SANDF (South African National Defense Force)
- Sandvik
- Sandvine
- Sanechips Technology
- SANG (Saudi Arabian National Guard)
- Sanjole
- Santa Ana Unified School District
- Santa Maria-Bonita School District
- Santee Sioux Nation
- Santos
- San-tron
- Sanxing (Ningbo Sanxing Smart Electric)
- SANY Heavy Equipment
- SANY Heavy Industry
- Sanya Phoenix International Airport
- Sao Martinho
- Sao Paulo State Military Police
- SAP
- SAPS (South African Police Service)
- Sapura Energy (Sapura Group)
- Sapura Secured Technologies (Sapura Group)
- Saracen Mineral Holdings
- Sarcos Robotics
- Sartorius
- Sasken Technologies
- SaskTel
- Sateliot
- Satellite Applications Catapult
- SatixFy
- Saudi MOI (Ministry of Interior)
- Saviah Technologies
- Savonia University of Applied Sciences
- Savox Communications
- Sayona Mining
- SBA Communications
- SBB (Swiss Federal Railways)
- SBCSC (South Bend Community School Corporation)
- Sberbank
- SCA (Svenska Cellulosa Aktiebolaget)
- Scania
- SCE (Southern California Edison)
- Sceye
- SCF (Small Cell Forum)
- SCG (Siam Cement Group)
- Schaeffler Group
- Schlumberger
- Schneider Electric
- Schonhagen Airport
- Schoten Police
- Scotland 5G Center
- SCRF (State Commission for Radio Frequencies, Russia)
- SDG&E (San Diego Gas & Electric)
- SDIS 59 (Nord Departmental Fire & Rescue Service)
- SDLG (Shandong Lingong Construction Machinery)
- SDS-Ugol
- SEA (Systems Engineering & Assessment)
- Seaboard Marine
- Seafar
- Seamless Air Alliance
- Seamless Waves
- SEAT
- Seatrium (Formerly Keppel Offshore & Marine)
- Sectra Communications
- Secure Chorus
- Secured Communications
- SecureG
- SecurifAI
- Securitas
- SecurityGen
- Securus Technologies
- Sedna Industrial IT Solutions
- SEE Telecom
- SEEHAFEN KIEL
- Seehafen Stralsund
- Seehafen Wismar
- Segezha Group
- SEGULA Technologies
- SEJONG Telecom
- SEL (Schweitzer Engineering Laboratories)
- Selcom (Netherlands)
- Select Spectrum
- SELECTRIC Nachrichten-Systeme
- Seligdar
- Sempra
- SEMPRE (Secure EMP-Resilient Edge)
- Semtech Corporation
- SENAI (National Service for Industrial Training, Brazil)
- Senko Advanced Components
- Sennheiser
- Sensorview
- Senstar Corporation
- Sensus
- Sentient Energy
- Sentinel Camera Systems
- Seong Ji Industrial
- SEONTECH
- Seoul Incheon International Airport
- Seoul Metropolitan Subway
- Seowon Intech
- Sepura
- SEPWA (South East Premium Wheat Growers Association)
- Sequans Communications
- Serbian Ministry of Interior
- Sercomm Corporation
- SERGAS (Galician Health Service)
- ServiceNow
- SES
- SETAR (Aruba)
- SETUP Protokolltester
- Severstal
- SEW-EURODRIVE
- SFR (Altice France)
- SFU (Simon Fraser University)
- SGCC (State Grid Corporation of China)
- SGH (SMART Global Holdings)
- SGP (Societe du Grand Paris)
- SGS
- Shaanxi Coal and Chemical Industry Group
- Shaanxi Shengwei Building Materials Group
- Shaanxi Shenyan Coal
- Shaanxi Tenghui Mining
- Shaanxi Yanchang Petroleum Group
- Shabodi
- Shandong Energy Group
- Shandong Gold Mining
- Shandong HSBC Petrochemical Group
- Shandong Port Group
- Shanghai Airport Authority
- Shanghai Municipal People's Government
- Shanghai Pearl Oriental Group
- Shanghai Police Department
- Shanghai Shentong Metro Group
- Shanghai University Of Engineering Science
- Shannon Wireless (Zhejiang Shannon Communication Technology)
- Shantui Construction Machinery
- Shanxi Coking Coal Group
- Shanxi Huayang Group
- Shaoguan Iron & Steel Group
- Shared Access
- Sharp Corporation
- ShawnTech Communications
- SHC (Stanford Health Care)
- Shell
- Shenbao Energy
- Shendong Coal
- Shenglu (Guangdong Shenglu Telecommunication)
- Shenyang Metro
- Shenzhen Airport Company
- Shenzhen CXD Science & Technology
- Shenzhen Futian Medical Consortium
- Shenzhen Metro
- Shenzhen Public Security Bureau
- Shenzhen Recoda Technologies
- Shenzhen Third People's Hospital
- Shenzhen University General Hospital
- Shenzhen Water Group
- Sherpa 6
- SHI (Samsung Heavy Industries)
- Shijiazhuang Metro
- Shimizu Corporation
- Shinshiro Municipal Hospital
- Shinwa Co. (Japan)
- SHR (Shuohuang Railway)
- Shyam Group
- SIAE Microelettronica
- SIBUR
- SICK
- Siemens
- Siemens Energy
- Siemens Mobility
- Sierra Wireless
- Sigma Connectivity
- Sigma Wireless
- Signal Information & Communication Corporation
- Signal Partners (Finland)
- Signalchip
- Signalwing
- Signify
- Siklu
- Silesian University of Technology
- Silicom Connectivity Solutions
- Silicom SAS (France)
- Silver Lake Resources
- Silverback Marine
- Silversea Cruises
- SIM Conecta
- SIMBA Telecom
- SIMCom Wireless Solutions
- Simnovus
- Simoco Wireless Solutions
- Simon Mokster Shipping
- Sinclair Technologies
- Singapore Polytechnic
- Singtel
- SinkabergHansen
- Sinnwell
- Sinopec (China Petroleum & Chemical Corporation)
- Sinotrans
- SIP (Sidewalk Infrastructure Partners)
- SIPG (Shanghai International Port Group)
- SIRADEL
- Siriraj Hospital
- SiRRAN Communications
- Sistema
- SITA
- Sitarail (Bollore Group)
- siticom
- SiTime Corporation
- SITRONICS
- Sivers Semiconductors
- Siyata Mobile
- SJSU (San Jose State University)
- SK Hynix
- SK Networks Service
- SK Telecom
- SK Telesys
- SKF
- Skironis Aquaculture
- Skoda Auto
- Skogforsk (Forestry Research Institute of Sweden)
- Skoltech (Skolkovo Institute of Science and Technology)
- Sky Packets
- SKY Perfect JSAT
- SkyFive
- Skylark Wireless
- SkyLink (Tele2 Russia)
- Skylo Technologies
- SkyMax Network
- Skytic Telecom
- SKYTRAC Systems
- Skyvera (TelcoDR)
- Skyworks Solutions
- Skyworth
- SLA Corporation
- SLC (Secure Land Communications)
- SLC Agricola
- Slovak Telekom
- Slovenian Ministry of Interior
- Slovenian Ministry of Public Administration
- SM Optics
- Smart Communications
- Smart DCC (Capita)
- Smart Mobile Labs
- Smart Nano NI
- Smart Systems Hub
- Smartfren
- SmarTone
- SmartSky Networks
- SmartWave Technologies
- SMAWave (Shanghai SMAWave Technology)
- SMBC (Sumitomo Mitsui Banking Corporation) Group
- SMC (Samsung Medical Center)
- SMC Corporation
- SMS Group
- SMT (Shanghai Maglev Train)
- Snam
- SNC Former
- SNCF (French National Railways)
- SNEF Group
- SNEF Telecom
- SNUBH (Seoul National University Bundang Hospital)
- Sobey Networks
- Sociedad Portuaria Puerto Bahia
- Socionext
- Sodra
- SoftBank Group
- SoftBank Robotics
- Softil
- Softing
- Software AG
- Soitec
- Sol Internet of People
- Solectek Corporation
- SOLiD
- Solid IT Networks
- Solidtronic
- SOLIS (Solis Tower Telecom)
- Soliton Systems
- Solteq
- Solvay
- Sonic Communications
- Sonim Technologies
- Sonoma County Fairgrounds
- Sony Group Corporation
- Sony Wireless Communications
- Sooktha
- Soracom
- Sougou Shouken
- Sound Transit
- Source Photonics
- South Australia Department for Infrastructure and Transport
- South Carolina ORS (Office of Regulatory Staff)
- South Gloucestershire Council
- South London and Maudsley NHS Foundation Trust
- South Westphalia University of Applied Sciences
- South32
- Southern Adriatic Sea Port Authority
- Southern Company
- Southern Copper Corporation
- Southern Linc
- SPA (Santos Port Authority)
- SPA (Scottish Police Authority)
- Space Compass
- Space Data Corporation
- SpaceBridge
- Spacecom
- SpaceX
- Spanish Army
- Spanish Ministry of Interior
- Spanish Navy
- Spanish Red Cross
- Spark New Zealand
- Sparro (WCI Technologies)
- Spectra Group
- SpectraRep
- Spectre
- Spectris
- Spectronite
- Spectronn
- Spectrum Effect
- Speedcast
- Speedway Motorsports
- SPF (Singapore Police Force)
- SPI (Saha Pathana Inter-Holding)
- Spideradio (Suzhou Spideradio Telecommunication Technology)
- SPIE Group
- Spirent Communications
- SPIRIT DSP
- SPL (Stratospheric Platforms Limited)
- Sporton International
- Sporveien
- Sprint (T-Mobile US)
- SPT (Strathclyde Partnership for Transport)
- SPTel
- Spy Ego Media - SEMCOMM
- SQUAN
- Squire Technologies
- SRA Holdings
- SRS (Software Radio Systems)
- SRTC (France)
- SRTechnology
- SS&E (Spurs Sports & Entertainment)
- SSA Marine (Carrix)
- SSAB
- SSC (Shared Spectrum Company)
- SSE (Sharks Sports & Entertainment)
- SSi Canada
- SSI SCHAFER
- SSS Public Safety
- ST (STMicroelectronics)
- ST Engineering iDirect
- St John New Zealand
- St. Luke's Health System
- St. Marianna University School of Medicine
- St. Vrain Valley School District
- Stadicom
- Stadtpolizei Zurich (Zurich City Police)
- Stadtwerke Andernach
- Standard Steel
- Stanford University
- Stanmore Coal
- Stanmore Resources
- Stanwell Corporation
- Star Microwave
- Star Solutions
- StarHub
- StarPoint (Beijing StarPoint Technology)
- STC (Saudi Telecom Company)
- STC Bahrain
- STC Kuwait
- STCSC (STC Specialized)
- Stedin
- Steep
- Stellantis
- Stena Line
- STEP CG
- Steveco
- STI (San Antonio Terminal Internacional)
- STILL (KION Group)
- STL (Sterlite Technologies Ltd.)
- Stockholm Metro
- Stockyards Heritage Development
- Stoen Operator
- Stop Noise
- Stora Enso
- STORDIS
- sTraffic
- Strata Worldwide
- Stratford Coal (Yancoal Australia)
- Streambox
- Streamwide
- Strict B.V.
- Strigo (TerreStar Solutions)
- Stromnetz Berlin
- STS (Special Telecommunications Service, Romania)
- Sturmsfs
- SUAPE (Suape Port & Industrial Complex)
- Subaru Corporation
- Subex
- Subtel (Undersecretariat of Telecommunications, Chile)
- SUEK
- SUEZ
- Suffolk County Sheriff's Department
- Sultanah Bahiyah Hospital
- Sultanah Maliha Hospital
- Sumitomo Corporation
- Sumitomo Electric Industries
- Sumitomo Metal Mining
- Sumitomo Shoji Machinex
- Summa Networks
- Summit Steel
- Summit Tech
- Summit Technology
- Suncor Energy
- Sunderland City Council
- Sunrise
- Sunsea AIoT Technology
- Sunwave Communications
- SUNY (State University of New York)
- SUPCON
- Superior Gold
- Supermercados MAS (MAS Supermarkets)
- Supermicro (Super Micro Computer)
- Suranaree University of Technology
- Sure Falkland Islands
- Sure South Atlantic
- SureSite Consulting Group
- SURF
- Surgutneftegas
- Surrey Heath Borough Council
- Surrey Police
- SUSE
- SUTD (Singapore University of Technology and Design)
- Suzhou Metro
- Suzhou Police
- SVP (Strategic Venue Partners)
- SVT (Sveriges Television)
- Swans Trail Farms
- Swedish Ministry of Justice
- Swedish Olympic Academy
- Swindon Borough Council
- Swisscom
- Swisscom Broadcast
- Swissphone
- Switch
- Swoop Aero
- SWR (Sudwestrundfunk)
- SWS (Shanghai Waigaoqiao Shipbuilding)
- Sycomp
- SYKE (Finnish Environment Institute)
- Sylincom (Beijing Sylincom Technology)
- SynaXG Technologies
- Synctechno
- Syngenta
- Synhelion
- Syniverse
- SYRTEM
- SYSCOM (Mexico)
- Sysoco (Axians/VINCI Energies)
- Systech Corporation
- Systel (Systemes & Telecommunications)
- System Innovation Group
- Systemics-PAB
- Szechenyi Istvan University
- T&W (Shenzhen Gongjin Electronics)
- T-2 (Slovenia)
- T2M
- t3 Broadband
- Tacora Resources
- TacSat Networks
- Tage I-Driver
- Taipei City Hospital
- Taipei Rapid Transit Corporation
- Taisei Corporation
- Taishan Fiberglass
- Tait Communications
- Taiwan Mobile
- Taiwan National Police Agency
- Taiwan Star Telecom
- TAIYO YUDEN
- Taiyuan Iron & Steel Group
- Takaoka Cable Network
- Takashima Municipal Hospital
- Takeda Pharmaceutical Company
- Takenaka Corporation
- Talgo
- Talia Communications
- Talison Lithium
- Talk-IP International
- Talkpod Technology
- Tamagawa Holdings
- Tambora Systems
- Tampa Electric (TECO Energy)
- Tampa General Hospital
- Tampa Microwave
- Tampere University
- Tampnet
- Tangenborgh
- Tango Networks
- Tango Tango
- Tangshan Port Group
- Taoglas
- Tarana Wireless
- TASSTA
- Tata Communications
- Tata Elxsi
- Tata Power
- Tatfook (Shenzhen Tatfook Technology)
- Tatneft
- TAURON Dystrybucja
- Tavistock Group
- TAWAL
- Tazca Connects
- TBN (Trinity Broadcasting Network)
- TBS (Tokyo Broadcasting System) TV
- TCA (Trusted Connectivity Alliance)
- TCCA (The Critical Communications Association)
- TCIL (Telecommunications Consultants India Limited)
- TCL Communication
- TCOM
- TCP (Paranagua Container Terminal)
- TCS (Tata Consultancy Services)
- TCTS (Tata Communications Transformation Services)
- TD Tech
- TDC NET
- TDCOMM
- TDF
- TDK Electronics
- TDRA (Telecommunications and Digital Government Regulatory Authority, UAE)
- TE Connectivity
- Teal Communications
- Team Telecom Armenia
- TECALED
- Tech Mahindra
- Techbros
- techUK
- Teck Resources
- Tecnologico de Monterrey
- Tecom
- Tecore Networks
- Tejas Networks
- TEKTELIC Communications
- Tel Aviv Light Rail
- Telco Systems
- Telcofan
- Telcoware
- Teldat
- Tele2
- Tele2 Russia
- Telebras
- Telecom Argentina
- Telecom CLM (Telecom Castilla-La Mancha)
- Telecom Egypt
- Telecom Namibia
- Telecom26
- Teleena (Tata Communications MOVE)
- Telefield
- Telefonica Broadcast Services
- Telefonica Germany
- Telefonica Group
- Telefonica Tech
- Telefonica UK
- Telekom Slovenije
- Telenet
- Telenor Denmark
- Telenor Group
- Telenor Maritime
- Telenor Sweden
- Telent
- TeleRetail
- Telesat
- Teleservice Skane
- Telespazio
- Teleste
- Telesur (Suriname)
- TELESYS (Brazil)
- teleSys Software
- Telet Research
- Televate
- Teleware
- Telewave
- TeleWorld Solutions
- Telia Company
- Telia Finland
- Telia Norway
- Telit Cinterion
- Telkom (PT Telkom Indonesia)
- Telkom Kenya
- Telkom South Africa
- Telkomsel
- Tellabs
- Tellion
- Telmex
- Telna
- TELNET Redes Inteligentes
- TELOX (Telo Systems)
- Telpass
- Telrad Networks
- Telsasoft
- Telstar-Hommel
- Telstra
- Telstra Purple
- Teltech Group
- Teltonika
- Teltronic
- Telus
- TEN (Texas Energy Network)
- Teocalli Partners
- TEOCO
- Teracom
- Teradek
- Teradyne
- TeraGo
- Tera-Pass
- Terrafame
- Terranet Communications
- Tesla
- Tessares
- TESSCO Technologies
- Texas A&M University
- Texas DPS (Department of Public Safety)
- Texas Management Group
- Texas State University
- TfL (Transport for London)
- TGS (Tecore Global Services)
- TH Koln (Cologne University of Applied Sciences)
- TH Lubeck (Technical University of Lubeck)
- TH OWL (OWL University of Applied Sciences and Arts)
- THA (Technical University of Applied Sciences Augsburg)
- Thaicom
- Thales
- Thales Alenia Space
- Tham Luang Cave Rescue
- THB (Brandenburg University of Applied Sciences)
- THD/DIT (Deggendorf Institute of Technology)
- The R&A
- THEIA ENERGY (France)
- Thiess
- ThinkRF
- THK
- Thorcom Systems
- Three Group Solutions
- Three Hong Kong
- Three Ireland
- Three Sweden
- Thundercomm
- Thuraya
- TI (Texas Instruments)
- TIA (Telecommunications Industry Association)
- Tianjin Port Group
- Tianyi (Sichuan Tianyi Comheart Telecom)
- Tibco Telecoms
- Tibet Huatailong Mining Development
- Tidal Network
- TietoEVRY
- Tigo Colombia
- Tillman Digital Cities
- Tillman Global Holdings
- Tilson
- TIL-TEK Antennae
- TIM (Telecom Italia Mobile)
- TIM Brasil
- Tioga Electronic Assembly
- TIP (Telecom Infra Project)
- TIRI (Tokyo Metropolitan Industrial Technology Research Institute)
- Titan ICT
- Titan.ium Platform
- TJ Innovation
- TK Elevator
- TKK Corporation
- TLC Solutions
- TM (Telekom Malaysia)
- T-Mobile Poland
- T-Mobile US
- TMYTEK (TMY Technology)
- TNB (Tenaga Nasional Berhad)
- TNO (Netherlands Organization for Applied Scientific Research)
- TNS (Transaction Network Services)
- TNT Sports (Formerly BT Sport)
- TO21COMMS
- Toba National College of Maritime Technology
- Tofane Global
- Tokachi Murakami Ranch
- TOKAI Cable Network Corporation
- TOKIE (Irvees Technology)
- Tokyo Development Foundation for Agriculture, Forestry and Fisheries
- Tokyo Metro
- Tokyo Metropolitan Government
- Tokyo Metropolitan Police Department
- Tokyo Metropolitan University
- Tokyo Tech (Tokyo Institute of Technology)
- Tokyu Land Corporation
- Tokyu Railways
- Tolko Industries
- TOMIA
- Tongyu Communication
- ToooAir
- Topcon Positioning Group
- TorkHub
- Toronto Police Service
- Toshiba Corporation
- Toshiba Infrastructure Systems & Solutions
- TotalEnergies
- TOTE Maritime Alaska
- Totogi
- TOUA (Tohono O'odham Utility Authority)
- Toulouse Metropole
- TowerEye (Belgium)
- TowerJazz
- Town of Orangeville
- Toyota Group
- Toyota Material Handling
- Toyota Motor Corporation
- Toyota Motor East Japan
- TPEC (Toyota Production Engineering Corporation)
- TPG Telecom
- TPL Systemes
- TP-Link Technologies
- TRA (Telecommunications Regulatory Authority, Bahrain)
- Traficom (Transport and Communications Agency, Finland)
- Trafikverket (Swedish Transport Administration)
- TRAI (Telecom Regulatory Authority of India)
- TRAINOSE
- Transatel
- Transdev
- Transit Wireless
- Transnet
- Transocean Group
- TransPacket
- Travekom (Stadtwerke Lubeck)
- Trend Micro
- Trenitalia
- Trialink (Russia)
- TriaSys Technologies Corporation
- Tribal Ready
- Trident Seafoods
- Trilogy Networks
- Trilogy NextGen
- Trinidad & Tobago Ministry of National Security
- Trinity College Dublin
- TRIOPT
- Triorail
- Trivale Tecnologia
- Troiline (Stadtwerke Troisdorf)
- Tropico
- TROY Information
- TruAccess Networks
- TrueMove H (True Corporation)
- TRUMPF
- Truphone
- TRX Systems
- TS/KOSTA (Korea Transportation Safety Authority)
- TSDSI (Telecommunications Standards Development Society, India)
- Tsinghua Unigroup
- TSMC (Taiwan Semiconductor Manufacturing Company)
- Tsofun
- TST (Tonami Satellite Communication Television)
- TST Systems
- Tsunagu Net Communications (Arteria Networks)
- T-Systems International
- TTA (Telecommunications Technology Association, South Korea)
- TTC (Telecommunication Technology Committee, Japan)
- TTG International
- TTM Technologies
- TU Clausthal (Technical University of Clausthal)
- TU Darmstadt (Technical University of Darmstadt)
- TU Dortmund University
- TU Dresden (Dresden University of Technology)
- TU Graz (Graz University of Technology)
- TU Ilmenau (Technical University of Ilmenau)
- TU Kaiserslautern (Technical University of Kaiserslautern)
- TU Wien (Vienna University of Technology)
- TU/e (Eindhoven University of Technology)
- TUKE (Technical University of Kosice)
- Tukwila School District
- TUL (Technical University of Liberec)
- TUM (Technical University of Munich)
- Tupl
- Turk Telekom
- Turkcell
- Turkish Armed Forces
- Turkish National Police
- Turku AMK (Turku University of Applied Sciences)
- Turku University Hospital
- Tustin Unified School District
- TUSUR (Tomsk State University of Control Systems and Radioelectronics)
- TUV Rheinland
- TUV SUD
- TUViT
- TV 2
- TV Azteca (Grupo Salinas)
- TVBS
- TVEL Fuel Company (Rosatom)
- Twente Airport
- TWFRS (Tyne and Wear Fire and Rescue Service)
- Twilio
- Two Six Labs
- Tyler Technologies
- U.S. Air Force
- U.S. Army
- U.S. Cellular
- U.S. Coast Guard
- U.S. DARPA (Defense Advanced Research Projects Agency)
- U.S. Department of Commerce
- U.S. DHS (Department of Homeland Security)
- U.S. DIU (Defense Innovation Unit)
- U.S. DOD (Department of Defense)
- U.S. DOE (Department of Energy)
- U.S. DOJ (Department of Justice)
- U.S. FAA (Federal Aviation Administration)
- U.S. FBI (Federal Bureau of Investigation)
- U.S. FCC (Federal Communications Commission)
- U.S. FEMA (Federal Emergency Management Agency)
- U.S. Marine Corps
- U.S. NASA (National Aeronautics and Space Administration)
- U.S. National Guard
- U.S. Navy
- U.S. NIST (National Institute of Standards and Technology)
- U.S. NPSTC (National Public Safety Telecommunications Council)
- U.S. NREL (National Renewable Energy Laboratory)
- U.S. NSA (National Security Agency)
- U.S. NSF (National Science Foundation)
- U.S. NTIA (National Telecommunications and Information Administration)
- U.S. Space Force
- U.S. VA (Department of Veterans Affairs)
- UAE Armed Forces
- UAE MOI (Ministry of Interior)
- UAI (Adolfo Ibanez University)
- UANGEL
- UBBA (Utility Broadband Alliance)
- UBC (University of British Columbia)
- UBCS
- Ubicquia
- Ubiik
- UBiqube
- Ubiquoss
- Ubiwhere
- U-Blox
- UBT (University for Business and Technology, Kosovo)
- Ucloudy (Shanghai Ucloudy Information Technology)
- UCN (Catholic University of the North)
- UConn (University of Connecticut)
- UCONSYSTEM
- UCSB (University of California, Santa Barbara)
- UCtel
- UDD (Universidad del Desarrollo)
- UDE (University of Duisburg-Essen)
- UdeC (University of Concepcion)
- Udokan Copper
- UEC-Perm Engines
- UET (United Electronic Technology)
- UETN (Utah Education and Telehealth Network)
- UFCG (Federal University of Campina Grande)
- UfiSpace
- UFL (United Football League)
- UGL
- UHB (University Hospitals Birmingham NHS Foundation Trust)
- UIC (International Union of Railways)
- UIPA (Utah Inland Port Authority)
- UISA
- UK Power Networks
- UK5G Innovation Network
- UKAEA (United Kingdom Atomic Energy Authority)
- UKB (University Hospital Bonn)
- UKD (University Hospital of Dusseldorf)
- UKE (Office of Electronic Communications, Poland)
- UKSH (University Hospital Schleswig-Holstein)
- UL
- ULAK Communication
- Ultimatek (Russia)
- UltiSat
- Ultraband Technologies
- UMC (United Microelectronics Corporation)
- UMC (University Medical Center) Utrecht
- UMCG (University Medical Center Groningen)
- Umea University
- Umlaut
- UMMC (Ural Mining and Metallurgical Company)
- UMS (United Monolithic Semiconductors)
- UN (United Nations)
- UNAB (Andres Bello National University)
- UNC (University of North Carolina) Health
- Uniadex
- UNIBERG
- UNIFE (The European Rail Supply Industry Association)
- Unifique
- Unikie
- UNIMO Technology
- Unipart Manufacturing
- UniSantaCruz (Santa Cruz University Center)
- UNISOC
- UniStrong
- UNITAC Technology
- United Hatzalah
- United Kingdom Home Office
- UniTTEC
- University Center of FEI
- University Hospital Aachen
- University Hospitals Coventry & Warwickshire NHS Trust
- University of Augsburg
- University of Aveiro
- University of Bristol
- University of Chile
- University of Cincinnati
- University of Cologne
- University of Extremadura
- University of Fukui Hospital
- University of Glasgow
- University of Helsinki
- University of Illinois at Urbana-Champaign
- University of La Serena
- University of Leipzig
- University of Limerick
- University of Lincoln
- University of Malaga
- University of Miami
- University of Michigan
- University of Murcia
- University of Nebraska-Lincoln
- University of Oulu
- University of Oviedo
- University of Palermo
- University of Patras
- University of Pennsylvania
- University of Regina
- University of Sheffield
- University of Strathclyde
- University of Stuttgart
- University of Sunderland
- University of Surrey
- University of Thessaly
- University of Tokyo
- University of Tsukuba
- University of Twente
- University of Utah
- University of Vaasa
- University of Vigo
- University of Virginia
- University of Warwick
- University of Waterloo
- University of Windsor
- University of Wuppertal
- University of York
- University of Zagreb
- University of Zilina
- Unizyx Holding Corporation
- UNM (University of New Mexico)
- UPB (Politehnica University of Bucharest)
- UPC/BarcelonaTech (Universitat Politecnica de Catalunya)
- UPLA (University of Playa Ancha)
- UPS (United Parcel Service)
- UPS Flight Forward
- UPV (Polytechnic University of Valencia)
- Uralkali
- UrFU (Ural Federal University)
- UROS
- URSYS
- Urumqi Metro
- US Digital Designs
- USACH (University of Santiago)
- USC (University of Southern California)
- Ushino Nakayama
- USI (Universal Scientific Industrial)
- USM (Federico Santa Maria Technical University)
- USP (University of Sao Paulo)
- USSOCOM (U.S. Special Operations Command)
- UT (University of Tennessee, Knoxville)
- UTAC
- UTalca (University of Talca)
- UTC (Utilities Technology Council)
- UTCAL (Utilities Telecom & Technology Council America Latina)
- UTEM (Metropolitan University of Technology, Chile)
- Utility (Utility Associates)
- Utility Connect
- UTM (Universiti Teknologi Malaysia)
- UTS (University of Technology Sydney)
- UTStarcom
- UV (University of Valparaiso)
- UVM (University of Vina del Mar)
- UW (University of Washington)
- UWM (University of Wisconsin-Milwaukee)
- UZA (Antwerp University Hospital)
- V&M (Venus & Mercury) Telecom
- V2COM
- V5 Systems
- Vale
- Valencia City Council
- Valid (Brazil)
- Valid8
- VALL Technologies
- Valmet
- Valtra
- Vancouver Fire Rescue Services
- Vankom Technology
- Vantage Towers
- Vantiva (Formerly Technicolor)
- Vanu
- VAPAR Innovation
- Vapor IO
- Var Energi
- VARTA
- Vattenfall
- Vavitel (Shenzhen Vavitel Technology)
- VCK Logistics
- VDI (Virginia Diodes, Inc.)
- VDMA (German Mechanical and Plant Engineering Association)
- Vector Data
- Veea
- Velaspan
- Velocity (Butler Rural Electric Cooperative)
- Vendee Chamber of Agriculture
- Ventev
- VEON
- Verana Networks
- Verdant Leisure
- Verizon Business
- Verizon Communications
- Verkotan
- Versa Networks
- Vertel
- Vertex System Corporation (Coiler Corporation)
- Vertical Bridge
- Vertiv
- Verveba Telecom
- Vestas
- VHT (Viettel High Tech)
- Vi (Vodafone Idea)
- ViaPath Technologies (GTL)
- Viasat
- VIAVI Solutions
- Victoria Police
- VicTrack
- VIDA Technologies
- Videotron
- Vienna International Airport
- Vientiane Municipal Government
- Viesgo Distribucion
- Viettel Group
- View (View Smart Windows)
- Viggo (Netherlands)
- Vigilate
- Vigo Port Authority
- Vilicom
- Vimy Resources
- VINCI Energies
- Vingroup
- VinSmart
- Viper RF
- Viprinet
- ViPRO Corporation
- VIR (Virginia International Raceway)
- Virgin Media O2
- Virginia Tech (Virginia Polytechnic Institute and State University)
- Virtual Access
- Virtueyes
- Virtusa Corporation
- Visionable
- Vislink Technologies
- Vista Unified School District
- Visual Labs
- VIT (Virginia International Terminals)
- Vital (New Zealand)
- VITES
- Vivint
- Vivo
- Vivo (Telefonica Brasil)
- VMware
- VNC (Virtual NetCom)
- VNC Automotive
- VNIIZhT (Research Institute of Russian Railways)
- VNL (Vihaan Networks Limited)
- VNPT (Vietnam Posts and Telecommunications Group)
- Vocus
- Vodacom Group
- Vodafone Business
- Vodafone Czech Republic
- Vodafone Germany
- Vodafone Group
- Vodafone Hungary
- Vodafone Italia
- Vodafone Portugal
- Vodafone Qatar
- Vodafone Spain
- Voentelecom
- VoerEir
- VoiceAge Corporation
- Voipfuture
- VolkerWessels Telecom
- Volkswagen Group
- Volvo CE (Construction Equipment)
- Volvo Trucks
- Voxer
- VPA (Virginia Port Authority)
- VR Group (Finnish State Railways)
- Vroon
- Vroove (Japan)
- VSB-TUO (Technical University of Ostrava)
- VTT Technical Research Centre of Finland
- VTTI (Virginia Tech Transportation Institute)
- Vubiq Networks
- VUT/BUT (Brno University of Technology)
- VVDN Technologies
- Vy Group
- Waalhaven Group
- Wabtec Corporation
- WAE Technologies
- WAGO
- Walker and Associates
- Walmart
- Walt Disney Company
- Wanbao Mining
- Wanhua Chemical
- Wasatch County School District
- Washington Maritime Blue
- Washington Military Department
- WAV
- WAV4M
- WAVE (AGC)
- Wave Electronics (Korea)
- Wave1
- Wave-In Communication
- Wavelabs
- Wavemobile
- Wavesight
- Wavetel Technology
- Waycare
- Wayra (Telefonica Open Innovation)
- Wazco
- WBA (Walgreens Boots Alliance)
- WBA (Wireless Broadband Alliance)
- WCCTV (Wireless CCTV)
- WCU (West Chester University)
- WDNA (Wireless DNA)
- WDR (Westdeutscher Rundfunk Koln)
- Weaccess Group
- Weavix
- Webdyn
- WebRadar
- WEG
- Weidmuller
- Weisse Arena Group
- Welotec
- Welsh Ambulance Service
- Welzow Airport
- Wenzhou Rail Transit
- West China Hospital of Sichuan University
- West China Second University Hospital of Sichuan University
- West Kentucky Rural Electric Cooperative Corporation
- West Sussex County Council
- Westcon-Comstor
- Westell Technologies
- WestEnd WiFi
- Westermo Network Technologies
- Western Australia Police Force
- Westfalische Hochschule (Westphalian University of Applied Sciences)
- Westminster City Council
- Wevercomm
- Wewins (Shenzhen Wewins Wireless)
- WeWork
- WG+E (Westfield Gas + Electric)
- wgtwo (Working Group Two)
- WH Bence Group
- WHA Group
- Whakaata Maori
- Whale Cloud Technology
- WHIN (Wabash Heartland Innovation Network)
- Whirlpool
- Whitehill & Bordon Regeneration Company
- WhiteSpace Alliance
- Whizz Systems
- Widelity
- Wien Energie
- WiFrost
- WIG (Wireless Infrastructure Group)
- Wildox (Shenzhen Happy Technology)
- Wilson Electronics
- Wiluna Mining Corporation
- Wilus
- WIN Connectivity (Wireless Information Networks)
- Wind River Systems
- Wind Tre
- Windsor Salt
- WINGS ICT Solutions
- Wingtech Technology
- WINITECH
- Winmate Communications
- Winncom Technologies
- WInnForum (Wireless Innovation Forum)
- Winther Bredband
- Wipro
- Wireless Concepts International
- Wireless Logic Group
- Wireless Technologies Finland
- Wireless Telecom Group
- WISCO (Wuhan Iron & Steel Corporation)
- WiSig Networks
- Wi-Sky Queensland
- WiSP Services
- WISTA Management
- Wistron Corporation
- WITENO
- Wiwynn
- WIZCORE (South Korea)
- WLH (Wirtschaftsforderung im Landkreis Harburg)
- WM Systems
- WMS (Wireless Maritime Services)
- WNC (Wistron NeWeb Corporation)
- Wolfspeed
- Woodside Energy
- WooriNet
- Worcester Bosch
- Workspace Group
- Workz
- World Mobile Group
- World View
- WorldCell Solutions
- Wouxun (Quanzhou Wouxun Electronics)
- WOWOW
- Wright State University
- Wroclaw Tech (Wroclaw University of Science and Technology)
- WSP
- WSU (Wichita State University)
- WTL (World Telecom Labs)
- WTW Electronic
- Wuhan Metro
- Wuhan Union Hospital
- Wuhan Wuchang Hospital
- Wujiang Public Security Bureau
- WUT (Warsaw University of Technology)
- Wutong Group
- WWT (World Wide Technology)
- Wytec International
- X Shore
- X4000 Communications
- XAG
- XAL (Xarxa Audiovisual Local)
- Xantaro
- XAVi Technologies Corporation
- Xcel Energy
- XCMG Group
- XCOM Labs
- xCraft Enterprises
- Xelera Technologies
- Xemex
- Xena Networks
- XGP (eXtended Global Platform) Forum
- Xiamen BRT (Bus Rapid Transit)
- Xiamen Metro
- Xiamen Puxing Electronics Science & Technology
- Xiamen Sanan Integrated Circuit
- Xi'an Public Security Bureau
- Xiaomi
- Xilinx
- Xinfengming Group
- Xingtera
- Xinwei Group
- XINYI Information Technology
- XipLink
- XISC (Hunan Valin Xiangtan Iron & Steel Company)
- XIUS
- XL Axiata
- XNET
- XtremeLTE (Xtreme Enterprises)
- Xylem
- YADRO
- YAGEO Corporation
- Yahsat (Al Yah Satellite Communications)
- YaleBTS
- Yamana Gold
- Yamazaki Mazak Corporation
- Yancoal Australia
- Yankuang Energy Group
- Yanton (Quanzhou Yanton Electronics)
- Yara International
- Yaskawa Electric Corporation
- YATEC (Yakut Fuel and Energy Company)
- Yawata Electrode (Thailand)
- YBVR (Yerba Buena VR)
- Yes24
- Yingkou Port Group
- Yinhawangka Aboriginal Corporation
- Yle (Yleisradio)
- YOFC (Yangtze Optical Fibre and Cable)
- Yokogawa Electric Corporation
- Yokowo
- Yonsei University
- Yorkshire Water
- Youngor Group
- YPC (Yangzi Petrochemical Company)
- YTcom
- Yuge Technology (Shanghai Yuge Information Technology)
- YUHS (Yonsei University Health System)
- Yuma School District
- Yumeshima Container Terminal
- Yunzhi Ruantong (Beijing Yunzhi Ruantong Information Technology)
- Zain Group
- Zain Saudi Arabia (Zain KSA)
- ZaiNar
- Zambian Ministry of Home Affairs and Internal Security
- Zaragoza Fire Department
- Zaram Technology
- Zayo Group
- Z-Com
- Zealync
- Zebra Technologies
- Zeetta Networks
- ZEISS
- Zello
- ZeMA (Center for Mechatronics and Automation Technology)
- ZenFi Networks
- Zengyi Technology
- Zenith Minerals
- Zenzic-UK
- Zepcam
- Zermatt Bergbahnen
- ZeroEyes
- Zetron
- ZF
- Zhejiang Provincial People's Hospital
- Zhengkai Electronics (Jiangsu Zhengkai Electronics Technology)
- Zhengzhou Metro
- Zhengzhou Public Security Bureau
- Zhongshan Public Security Bureau
- Zhuhai Port Group
- Zhungeer Energy
- ZIEHL-ABEGG
- Zijin Mining Group
- ZILLNK
- Zinwave
- Zioncom
- Zmtel (Shanghai Zhongmi Communication Technology)
- ZNA (Antwerp Hospital Network)
- ZoraBots (Zora Robotics)
- ZT Systems
- ZTE
- ZTV (Japan)
- Zuellig Pharma
- ZVEI (German Electrical and Electronic Manufacturers' Association)
- Zvezda Shipbuilding Complex
- Zyfra
- Zyter
- Zyxel
- Countries Covered:
- Afghanistan
- Albania
- Algeria
- Andorra
- Angola
- Anguilla
- Antigua & Barbuda
- Argentina
- Armenia
- Aruba
- Australia
- Austria
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