| Name | ITU-R | ITU-T | ITU-D | Categories |
| ARGENTINA |
| Empresa Argentina de Soluciones Satelitales (AR-SAT S.A.), BUENOS AIRES | ASSOCIATE SG4 | | X | ROA |
| BANGLADESH |
| Robi Axiata Limited, DHAKA | | | ASSOCIATE SG1 | ROA |
| BELGIUM |
| BICS SA, Brussels | | ASSOCIATE SG2 | | ROA / SERVICE PROVIDER |
| Voxbone SA, BRUXELLES | | ASSOCIATE SG2 | | ROA |
| BOSNIA AND HERZEGOVINA |
| m:tel, BANJA LUKA | | ASSOCIATE SG3 | X | ROA / OPERATOR |
| BRAZIL |
| ADVISIA OC&C Strategy Consultants, Sao Paulo | | | ASSOCIATE SG1 | OTHER ENTITY / CONSULTANT |
| CANADA |
| EXFO Inc., Quebec | | ASSOCIATE SG15 | | SIO |
| Integrated Device Technology (IDT), OTTAWA | | ASSOCIATE SG15 | | SIO |
| Videotron s.e.n.c., Montréal | ASSOCIATE SG5 | X | | ROA / OPERATOR |
| CHINA |
| China Tower Corporation Limited, Haidian District, Beijing | ASSOCIATE SG5 | | | ROA / OPERATOR |
| Guangdong DAPU Telecom Technology Co. Ltd., Dongguan | | ASSOCIATE SG15 | | SIO / MANUFACTURER |
| StarTimes Software Technology Co. Ltd., Beijing | | | ASSOCIATE SG1 | SIO / MANUFACTURER |
| Wangsu Science & Technology Co. Ltd., Shanghai | | ASSOCIATE SG16 | | ROA |
| CYPRUS |
| MTX Connect Ltd, LIMASSOL | | ASSOCIATE SG2 | | ROA / SERVICE PROVIDER |
| DENMARK |
| Brüel & Kjaer Sound & Vibration Measurements A/S, NAERUM | | ASSOCIATE SG12 | | SIO |
| GN Netcom A/S, BALLERUP | | ASSOCIATE SG12 | | SIO / MANUFACTURER |
| EGYPT |
| Orange Egypt, Cairo | | | ASSOCIATE SG2 | ROA / OPERATOR |
| FRANCE |
| Bouygues Telecom, Meudon la forêt | ASSOCIATE SG5 | | | ROA |
| Enedis, NANTERRE | | ASSOCIATE SG15 | | OTHER ENTITY |
| InfoVista SAS, Les Ulis | | ASSOCIATE SG12 | | OTHER ENTITY |
| Legos, Paris | | ASSOCIATE SG2 | | ROA / OPERATOR |
| Lillybelle, Lyon | | ASSOCIATE SG12 | | SIO |
| MStar Semiconductor, Inc. (MStar), ISSY-LES-MOULINEAUX | ASSOCIATE SG6 | | | SIO |
| Sigfox, LABEGE | X | ASSOCIATE SG20 | | ROA |
| Société nationale des chemins de fer français, LA PLAINE ST DENIS CEDEX | | ASSOCIATE SG5 | | SIO |
| Sysoco, Decines | | | ASSOCIATE SG2 | ROA / OPERATOR |
| Thales Communications & Sécurité SAS, Gennevilliers Cedex | | ASSOCIATE SG17 | X | SIO |
| TRANSATEL, PUTEAUX CEDEX | | ASSOCIATE SG2 | | ROA / OPERATOR |
| GERMANY |
| AVM Audiovisuelles Marketing und Computersysteme GmbH, Berlin | | ASSOCIATE SG15 | | ROA / MANUFACTURER |
| DENIC eG, FRANKFURT AM MAIN | | ASSOCIATE SG2 | | OTHER ENTITY |
| EMnify GmbH, Würzburg | | ASSOCIATE SG2 | | ROA / OPERATOR |
| HEAD Acoustics GmbH, HERZOGENRATH | | ASSOCIATE SG12 | | SIO |
| Heraeus Quarzglas GmbH & Co. KG, HANAU | | ASSOCIATE SG15 | | SIO |
| Keysight Technologies Deutschland GmbH, BOEBLINGEN | | ASSOCIATE SG15 | | SIO |
| Meinberg Funkuhren GmbH & Co.KG, Bad Pyrmont | | ASSOCIATE SG15 | | SIO / MANUFACTURER |
| Narda Safety Test Solutions GmbH, Pfullingen | ASSOCIATE SG1 | ASSOCIATE SG5 | | OTHER ENTITY / MANUFACTURER |
| Opticom GmbH, ERLANGEN | | ASSOCIATE SG12 | | SIO |
| SIGOS, Nuernberg | | ASSOCIATE SG3 | | SIO / MANUFACTURER |
| GREECE |
| Hellenic Telecommunications Organization S.A. (OTE), MAROUSSI - ATHENS | | ASSOCIATE SG13 | | ROA / OPERATOR |
| Raycap SA, ATHENS | | ASSOCIATE SG5 | | SIO / MANUFACTURER |
| HUNGARY |
| Tel2tel Kft., Budapest | | ASSOCIATE SG2 | | ROA / SERVICE PROVIDER |
| ICELAND |
| IMC Ísland, REYKJAVIK | | ASSOCIATE SG2 | | ROA / OPERATOR |
| INDIA |
| Plintron Global Technology Solutions Private Limited, Chennai | | ASSOCIATE SG2 | | ROA / SERVICE PROVIDER |
| Telecommunications Standards Development Society, India (TSDSI), Gurgaon | ASSOCIATE SG5 | ASSOCIATE SG15 | | OTHER ENTITY |
| IRAN (ISLAMIC REPUBLIC OF) |
| Iranian Net Communication & Electronic Services Co., TEHRAN | | | ASSOCIATE SG2 | ROA / OPERATOR |
| Monenco Iran, Tehran | | | ASSOCIATE SG2 | OTHER ENTITY |
| IRELAND |
| DIDWW Ireland Limited, DUBLIN | | ASSOCIATE SG2 | | ROA |
| ISRAEL |
| Beezz Communication Sol. Ltd., Petach Tikva | | ASSOCIATE SG2 | | ROA / SERVICE PROVIDER |
| IP Light, PETACH TIKVA | | ASSOCIATE SG15 | | SIO |
| RAD Data Communications, Ltd., TEL AVIV | | ASSOCIATE SG15 | | SIO |
| Sckipio Technologies S.I. Ltd., RAMAT GAN | | ASSOCIATE SG15 | | SIO / MANUFACTURER |
| ITALY |
| SM Optics s.r.l., Milan | | ASSOCIATE SG15 | | SIO / MANUFACTURER |
| JAPAN |
| Anritsu Corporation, Kanagawa | | ASSOCIATE SG15 | | SIO / R&D INSTITUTION |
| CANON Inc., TOKYO | ASSOCIATE SG6 | ASSOCIATE SG16 | | SIO |
| Communication Line Products Association of Japan, TOKYO | | ASSOCIATE SG15 | | SIO |
| Japan Cable Laboratories, Minato-ku, TOKYO | | ASSOCIATE SG9 | | SIO |
| MCC Corporation, TOKYO | ASSOCIATE SG4 | | | SIO |
| MegaChips Corporation, OSAKA | | ASSOCIATE SG15 | | SIO |
| Mitsubishi Electric Corporation, TOKYO | X | X | ASSOCIATE SG1 | SIO |
| Mitsubishi Research Institute, Inc., TOKYO | ASSOCIATE SG1 | | | SIO |
| Murata Manufacturing Company Ltd., Nagaokakyo-shi | | ASSOCIATE SG15 | | SIO |
| Renesas Electronics Corporation, Tokyo | | ASSOCIATE SG16 | | SIO |
| KOREA (REP. OF) |
| Korea Internet & Security Agency (KISA)., SEOUL | | ASSOCIATE SG17 | | ROA |
| MALTA |
| Wins Limited, ST VENERA | | ASSOCIATE SG2 | | ROA / OPERATOR |
| MONACO |
| Monaco Télécom, MONACO | | ASSOCIATE SG2 | | ROA / OPERATOR |
| NETHERLANDS |
| BodyTrace Netherlands B.V., Schiphol | | ASSOCIATE SG2 | | SIO / OPERATOR |
| Effect Photonics B.V., Eindhoven | | ASSOCIATE SG15 | | SIO / MANUFACTURER |
| MessageBird B.V., Amsterdam | | ASSOCIATE SG2 | | ROA / SERVICE PROVIDER |
| Philips International B.V., EINDHOVEN | ASSOCIATE SG6 | | | SIO |
| Teleena Holding B.V., Nieuwegein | | ASSOCIATE SG2 | | ROA / OPERATOR |
| TKH Group NV, Haaksbergen | | ASSOCIATE SG15 | | SIO / MANUFACTURER |
| NEW ZEALAND |
| Rakon Limited, AUCKLAND | | ASSOCIATE SG15 | | SIO / MANUFACTURER |
| NORWAY |
| AeroMobile AS, Osla | | ASSOCIATE SG2 | | ROA / OPERATOR |
| RUSSIAN FEDERATION |
| Kaspersky Lab AO, Moscow | | ASSOCIATE SG20 | | SIO |
| MegaFon Open Joint Stock Company, MOSCOW | X | ASSOCIATE SG2 | | ROA |
| SLOVAKIA |
| Slovak Telekom, a.s., BRATISLAVA | | ASSOCIATE SG13 | | ROA |
| SOUTH AFRICA |
| GEW Technologies (Pty) Ltd., PRETORIA | ASSOCIATE SG1 | | ASSOCIATE SG1 | SIO |
| MTN Management Services, Fairland, Roodepoort | | ASSOCIATE SG2 | | ROA |
| SPAIN |
| Aggaros S.L., BARCELONA | | | ASSOCIATE SG2 | OTHER ENTITY |
| SWEDEN |
| GlobeTouch AB, Stockholm | | ASSOCIATE SG2 | | ROA / OPERATOR |
| Swedish Space Corporation (Rymdbolaget), SOLNA | ASSOCIATE SG4 | | | SIO |
| Telenor Connexion AB, STOCKHOLM | | ASSOCIATE SG2 | | SIO |
| SWITZERLAND |
| ACN Advanced Communications Networks SA, NEUCHÂTEL | | ASSOCIATE SG15 | | SIO |
| Ascom (Switzerland) Ltd., SOLOTHURN | | ASSOCIATE SG12 | | SIO |
| Nagravision SA / Kudelski Group, Chesseux-sur-Lausanne | | ASSOCIATE SG17 | | OTHER ENTITY |
| OnAir, COINTRIN GENÈVE 1 | | ASSOCIATE SG2 | | ROA |
| Telecom26 AG, Zug | | ASSOCIATE SG2 | | ROA / SERVICE PROVIDER |
| TUNISIA |
| Prisma, Tunis | | ASSOCIATE SG12 | | OTHER ENTITY |
| TELNET TECHNOCENTRE, TUNIS | | ASSOCIATE SG13 | | SIO |
| UKRAINE |
| Ukrainian Number and Address Operation Center Consortium (UNAOC), Kiev | | | ASSOCIATE SG2 | OTHER ENTITY |
| UNITED KINGDOM |
| Aviat Networks, Blantyre, Glasgow | | ASSOCIATE SG15 | | ROA |
| Bourns Limited, BEDFORD | | ASSOCIATE SG5 | | SIO |
| Calnex Solutions Limited, LINLITHGOW | | ASSOCIATE SG15 | | SIO / SERVICE PROVIDER |
| Chronos Technology Limited, LYDBROOK | | ASSOCIATE SG15 | | SIO |
| CRFS Limited, CAMBRIDGE | ASSOCIATE SG1 | | | SIO / MANUFACTURER |
| Future Cities Catapult, London | | ASSOCIATE SG20 | | OTHER ENTITY |
| InterConnect Communications Ltd, CHEPSTOW | | ASSOCIATE SG2 | | OTHER ENTITY / CONSULTANT |
| JT (Jersey) Limited, ST. HELIER | | ASSOCIATE SG2 | | ROA |
| Kaiam Europe Ltd., LIVINGSTON | | ASSOCIATE SG15 | | SIO / MANUFACTURER |
| Littelfuse UK Ltd., SWINDON | | ASSOCIATE SG5 | | SIO |
| Malden Electronics, Ewell | | ASSOCIATE SG12 | | SIO |
| Manx Telecom Trading Ltd., Braddan | | ASSOCIATE SG2 | | ROA / SERVICE PROVIDER |
| MediaLincc Limited, DOUGLAS | | ASSOCIATE SG2 | | SIO |
| Oclaro Technology Plc, PAIGNTON | | ASSOCIATE SG15 | | SIO |
| Sama Telecom, London | | ASSOCIATE SG2 | | ROA |
| Sawatch Limited, Milton Keynes | | ASSOCIATE SG2 | | ROA |
| Semtech Limited, ROMSEY | | ASSOCIATE SG15 | | SIO |
| Tinklabs Limited, London | | ASSOCIATE SG2 | | ROA / SERVICE PROVIDER |
| Tyntec Limited, Isle of Man | | ASSOCIATE SG2 | | ROA |
| UNITED STATES |
| Acacia Communications, Inc, Maynard | | ASSOCIATE SG15 | | SIO |
| Adaptive Spectrum and Signal Alignment (ASSIA) Inc., REDWOOD CITY | | ASSOCIATE SG15 | | SIO |
| Aeris Communications, Inc., SANTA CLARA | | ASSOCIATE SG2 | | SIO |
| Aetna, Ogdensburg | | ASSOCIATE SG17 | | SIO |
| Analog Devices, Inc., San Jose | | ASSOCIATE SG15 | | SIO |
| ARRIS Group, Inc., Suwanee | | ASSOCIATE SG15 | | SIO / MANUFACTURER |
| Bandwidth.com, Inc., Raleigh | | ASSOCIATE SG2 | | ROA |
| Broadcom Corporation, IRVINE | ASSOCIATE SG5 | X | | SIO |
| Calix Networks, Inc., PETALUMA | | ASSOCIATE SG15 | | SIO |
| Ciena Corporation, Hanover | | ASSOCIATE SG15 | | SIO |
| Corporation for National Research Initiatives, RESTON | | ASSOCIATE SG17 | X | SIO |
| DSM Desotech, Inc., ELGIN | | ASSOCIATE SG15 | | SIO |
| DTS Inc., Calabasas | ASSOCIATE SG6 | | | SIO / MANUFACTURER |
| Ellipsat Inc, WASHINGTON | | ASSOCIATE SG2 | | SIO |
| Epson Electronics America, San Jose | | ASSOCIATE SG15 | | SIO / MANUFACTURER |
| Finisar Corporation, SUNNYVALE | | ASSOCIATE SG15 | | SIO |
| Fujitsu Network Communications, Inc., RICHARDSON | | ASSOCIATE SG15 | | SIO |
| Futurewei Technologies US R&D Center, BRIDGEWATER | | ASSOCIATE SG15 | | SIO / R&D INSTITUTION |
| Globecomm Network Services Corporation, HAUPPAUGE | | ASSOCIATE SG2 | | ROA / OPERATOR |
| inContact, Salt Lake City | | ASSOCIATE SG15 | | ROA / SERVICE PROVIDER |
| Infinera Corporation, SUNNYVALE | | ASSOCIATE SG15 | | SIO |
| Inphi Corporation, Santa Clara | | ASSOCIATE SG15 | | SIO |
| Iridium Communications Inc., MCLEAN | X | ASSOCIATE SG2 | X | ROA |
| Ixia, CALABASAS | | ASSOCIATE SG15 | | SIO |
| Jasper Technologies Inc., Santa Clara | | ASSOCIATE SG2 | | SIO |
| Keysight Technologies, Santa Rosa | ASSOCIATE SG1 | | | SIO / MANUFACTURER |
| Lifesize Inc., AUSTIN | | ASSOCIATE SG16 | | SIO |
| Lumentum, Milpitas | | ASSOCIATE SG15 | | SIO |
| OFS Fitel, LLC, SOMERSET | | ASSOCIATE SG15 | | SIO |
| Oration Technologies, Inc., OMAHA | | ASSOCIATE SG2 | | ROA |
| Pentair (ERICO brand), Solon | | ASSOCIATE SG5 | | SIO |
| Plantronics, Inc., SANTA CRUZ | | ASSOCIATE SG12 | | SIO |
| Polycom Inc., San jose | | ASSOCIATE SG16 | | SIO |
| Private Internet Access, Los Angeles | | ASSOCIATE SG17 | | SIO |
| Qulsar, Inc., San Jose | | ASSOCIATE SG15 | | SIO |
| Satcom Direct Inc, MELBOURNE | | ASSOCIATE SG2 | | ROA |
| Sigma Designs, Inc., Fremont | ASSOCIATE SG6 | | | SIO |
| Silicon Laboratories, Inc., AUSTIN | | ASSOCIATE SG15 | | SIO / MANUFACTURER |
| Space Systems Loral, PALO ALTO, CA | ASSOCIATE SG5 | | | SIO / MANUFACTURER |
| Sprint Corporation, OVERLAND PARK | X | ASSOCIATE SG15 | | ROA |
| Syniverse Technologies, Inc., TAMPA | | ASSOCIATE SG2 | | SIO |
| TCI International, Inc., FREMONT | ASSOCIATE SG1 | | | SIO |
| Tektronix, Inc., BEAVERTON | | ASSOCIATE SG15 | | SIO / MANUFACTURER |
| Tyco Electronics Subsea Communications LLC (TE Subcom), Eatontown | | ASSOCIATE SG15 | | SIO |
| Ubilinx Technology, Inc., SAN JOSE | | ASSOCIATE SG15 | | SIO |
| Vencore Labs, Red Bank | | ASSOCIATE SG20 | | OTHER ENTITY / CONSULTANT |
| Vidyo, Inc., HACKENSACK | | ASSOCIATE SG16 | | SIO |
| Xelic, Inc., PITTSFORD | | ASSOCIATE SG15 | | SIO |
| Ygomi LLC, GRAND FORKS | | ASSOCIATE SG16 | | SIO |
| 158 members (ITU-R=5, ITU-T=3, ITU-D=5, any=11; Associates: ITU-R=20, ITU-T=131, ITU-D=11, any=158). |
