List of 3GPP Corporate Groups
Below is the list of Corporate Groups as declared by official contacts of the 3GPP individual members:
Lines in Bold correspond to when the individual member explicitly declared being part of a corporate group.
Lines in Italic correspond to when the individual member did not do any self-declaration, implicitly declaring that they are a corporate group consisting only of themselves.
Note
Please contact the 3GPP Membership Team if you notice any discrepancies in the declarations listed in the table of Corporate Groups.
Email: 3GPPMembership@etsi.org
| Group Name | Orga Name | Partner |
|---|---|---|
| 3in | 3in | CCSA |
| 450connect GmbH | 450connect GmbH | ETSI |
| A.S.T.R.I.D. SA/NV | A.S.T.R.I.D. SA/NV | ETSI |
| ABP, NRTA | ABP, NRTA | CCSA |
| AccelerComm Ltd | AccelerComm Ltd | ETSI |
| Accenture | Accenture | ETSI |
| Acer Incorporated | Acer Incorporated | ETSI |
| adare GmbH | adare GmbH | ETSI |
| Advanced Micro Devices (AMD) | Xilinx Ireland | ETSI |
| Airbus | Airbus | ETSI |
| Ajou University | Ajou University | TTA |
| Al Yah Satellite Communications Company PJSC | THURAYA TELECOM CO. | ETSI |
| albis-elcon system GermanyGmbH | albis-elcon system GermanyGmbH | ETSI |
| All Connected BV | All Connected BV | ETSI |
| Allot Ltd | Allot Ltd | ETSI |
| Altan Redes S.A.P.I. de C.V. | Altan Redes S.A.P.I. de C.V. | ETSI |
| Amazon Web Services | Amazon Web Services | ETSI |
| Amdocs Software Systems Limited | Amdocs Software Systems Ltd | ETSI |
| Analog Devices, Inc. | Analog Devices, Inc. | ATIS |
| Anemone Technology | Anemone Technology | ETSI |
| Anritsu Corporation | Anritsu Corporation | ARIB |
| Anritsu Corporation | Anritsu EMEA Ltd | ETSI |
| Anterix | Anterix | ATIS |
| Apple Inc. | Apple | CCSA |
| Apple Inc. | Apple (Guizhou) | CCSA |
| Apple Inc. | Apple (UK) Limited | ETSI |
| Apple Inc. | Apple (Ulanqab) | CCSA |
| Apple Inc. | Apple AB Denmark | ETSI |
| Apple Inc. | Apple Benelux B.V. | ETSI |
| Apple Inc. | Apple Benelux B.V. - Belgium | ETSI |
| Apple Inc. | Apple Computer Trading Co. Ltd | CCSA |
| Apple Inc. | Apple Distribution Intl Ltd | ETSI |
| Apple Inc. | Apple France | ETSI |
| Apple Inc. | Apple GmbH | ETSI |
| Apple Inc. | Apple Inc | ATIS |
| Apple Inc. | Apple R&D | CCSA |
| Apple Inc. | Apple Solutions | CCSA |
| Apple Inc. | Apple Switzerland AG | ETSI |
| Apple Inc. | Apple Trading | CCSA |
| AQSACOM S.A.S. | AQSACOM S.A.S. | ETSI |
| ARTICLE19 | ARTICLE19 | ETSI |
| ASELSAN | ASELSAN | ETSI |
| AsiaInfo Technologies | AsiaInfo | CCSA |
| AsiaInfo Technologies | AsiaInfo Technologies Inc | ETSI |
| ASR | ASR | CCSA |
| Astrome Technologies Private Limited | Astrome Technologies Pvt Lt | TSDSI |
| ASUS | ASUSTEK COMPUTER (SHANGHAI) | CCSA |
| AT&T | AT&T | ATIS |
| AT&T | AT&T GNS Belgium SPRL | ETSI |
| AT&T | AT&T Labs, Inc | ATIS |
| AT&T | AT&T Services, Inc. | ATIS |
| ATEME | ATEME | ETSI |
| Avanti | Avanti | ETSI |
| Axyom.Core | Axyom.Core | ETSI |
| BAE Systems AI Ltd | BAE Systems AI Ltd | ETSI |
| Baicells Technologies Co. Ltd | Baicells Technologies Co. Ltd | CCSA |
| BBC | BBC | ETSI |
| B-Com | B-Com | ETSI |
| BDBOS | BDBOS | ETSI |
| BeammWave AB | BeammWave AB | ETSI |
| Beijing Cybercore Technology Co., Ltd. | Cybercore | CCSA |
| Beijing Star-net Ruijie Networks Co., Ltd | Ruijie Network Co. Ltd | CCSA |
| Bell Mobility | Bell Mobility | ETSI |
| BfV | BfV | ETSI |
| Bharti Airtel Limited | Bharti Airtel Limited | TSDSI |
| BIFNC | BIFNC | CCSA |
| BIPT | BIPT | ETSI |
| Bittium Corporation | Bittium Wireless Ltd. | ETSI |
| BJTU | BJTU | CCSA |
| BKA | BKA | ETSI |
| Bluetest AB | Bluetest AB | ETSI |
| BMF | BMF | ETSI |
| BMW AG | BMW AG | ETSI |
| BMWK | BMWK | ETSI |
| BNE | BNE | ETSI |
| BOCRA | BOCRA | ETSI |
| Boost Mobile Network | Boost Mobile Network | ATIS |
| BOUYGUES Telecom | BOUYGUES Telecom | ETSI |
| British Telecommunications plc | BT plc | ETSI |
| Broadcom (EU) | Broadcom (EU) | ETSI |
| BSI (DE) | BSI (DE) | ETSI |
| BSNL | BSNL | TSDSI |
| BTL Inc. | BTL Inc. | ETSI |
| BUPT | BUPT | CCSA |
| Bureau Veritas ADT | Bureau Veritas ADT | ETSI |
| Bytedance | Bytedance | CCSA |
| ByteDance | Douyin | CCSA |
| C Spire Wireless | C Spire Wireless | ATIS |
| CableLabs | CableLabs | ETSI |
| Cadence Design Systems Inc. | Cadence Design Systems Inc. | ETSI |
| CAICT. | CAICT. | CCSA |
| CALTTA | CALTTA | CCSA |
| Cambium Networks Limited | Cambium Networks Limited | ETSI |
| Canon | CANON Research Centre France | ETSI |
| CAPGEMINI | CAPGEMINI | TSDSI |
| Capgemini | CAMBRIDGE CONSULTANTS LTD | ETSI |
| Catapult | Catapult | ETSI |
| CCU | CCU | ETSI |
| C-DAC | C-DAC | TSDSI |
| C-DOT | C-DOT | TSDSI |
| CEA | CEA | ETSI |
| Cellnex Telecom | Cellnex | ETSI |
| CEPRI | CEPRI | CCSA |
| Ceragon Networks AS | Ceragon Networks AS | ETSI |
| CERTH | CERTH | ETSI |
| cetecom advanced GmbH | cetecom advanced GmbH | ETSI |
| CEWiT | CEWiT | TSDSI |
| CGL | CGL | ETSI |
| Changeself | Changeself | ETSI |
| Charter Communications, Inc | Charter Communications, Inc | ATIS |
| China Broadcasting Network Group Corporation Ltd. | CBN | CCSA |
| China Broadnet | China Broadnet | CCSA |
| China Electronics Technology Group Corporation | CENC | CCSA |
| China Mobile Com. Corporation | China Mobile (Hangzhou) Inf. | CCSA |
| China Mobile Com. Corporation | China Mobile (Suzhou) Software | CCSA |
| China Mobile Com. Corporation | China Mobile Com. Corporation | CCSA |
| China Mobile Com. Corporation | China Mobile E-Commerce Co. | CCSA |
| China Mobile Com. Corporation | China Mobile Group Device Co. | CCSA |
| China Mobile Com. Corporation | China Mobile International Ltd | CCSA |
| China Mobile Com. Corporation | China Mobile M2M Company Ltd. | CCSA |
| China Mobile Com. Corporation | CMDI | CCSA |
| CHINA SATELLITE NETWORK GROUP CO., LTD.(CSCN) | CSCN | CCSA |
| China Southern Power Grid Co., Ltd. | China Southern Power Grid Co. | CCSA |
| China Telecom | China Telecom Corporation Ltd. | CCSA |
| China Telecom | China Telecommunications | ETSI |
| China Telecom | China Telecomunication Corp. | CCSA |
| China Telecom | Chinatelecom Cloud | CCSA |
| China Telecom | CTSI | CCSA |
| China Telecom | E-surfing Digital | CCSA |
| China Telecom | Esurfing IoT | CCSA |
| China Unicom | BTPDI | CCSA |
| China Unicom | China Unicom | CCSA |
| China Unicom | CITC | CCSA |
| China Unicom | CU Digital Technology | CCSA |
| China Unicom | CUG | CCSA |
| China Unicom | Unicom Broadband Online | CCSA |
| China Unicom | Unicompay | CCSA |
| China Unicom | VSENS | CCSA |
| Chongqing University | Chongqing University | CCSA |
| CHTTL | CHTTL | ETSI |
| CICT Group | CATT | CCSA |
| CICT Group | CATT | ETSI |
| CICT Group | CICT | CCSA |
| CICT Group | CICT | ETSI |
| CICT Group | CICT Mobile | CCSA |
| CICT Group | CICTCI | CCSA |
| CICT Group | Datang Linktester Technology | CCSA |
| CICT Group | Datang Mobile Com. Equipment | CCSA |
| CICT Group | Fiberhome Technologies Group | CCSA |
| CICT Group | Wuhan Hongxin Technology | CCSA |
| CIS | CIS | ETSI |
| CISA ECD | CISA ECD | ATIS |
| Cisco | Cisco Systems | ATIS |
| Cisco | Cisco Systems Belgium | ETSI |
| Cisco | Cisco Systems France | ETSI |
| CK Hutchison Group Telecom Holdings Limited | CKH IOD UK LIMITED | ETSI |
| CNC | CNC | ETSI |
| CNES | CNES | ETSI |
| Cobham SatCom A/S | Cobham SatCom A/S | ETSI |
| Cognyte | Cognyte | ETSI |
| Cohere Technologies | Cohere Technologies | ATIS |
| Collins Aerospace | Collins Aerospace | ATIS |
| Comba Network Systems Company Limited | Comba | CCSA |
| Comcast | Comcast | ATIS |
| Commonwealth Scientific and Industrial Research Organisation | CSIRO | ETSI |
| Comprion GmbH | Comprion GmbH | ETSI |
| Comtech Telecommunications Cor | Comtech Telecommunications Cor | ATIS |
| Connected | Connected | ETSI |
| Consort Digital | Consort Digital | ETSI |
| Continental Automotive | Continental Automotive | ETSI |
| Convida Wireless | Convida Wireless | ETSI |
| Corporate Standards and Alliances | STMicroelectronics | ETSI |
| Cosmian | Cosmian | ETSI |
| CQUPT | CQUPT | CCSA |
| CRD | Schindler | ETSI |
| Crosscall | Crosscall | ETSI |
| CTTC | CTTC | ETSI |
| CUC | CUC | CCSA |
| Cyber Security Engineering Centre | CSA | ETSI |
| CyberSecurity & Technology Consultancy LTD | cstconsultancy | ETSI |
| Cygnusemi | Cygnusemi | CCSA |
| Czech Telecommunication Office | Czech Telecommunication Office | ETSI |
| DAC-SSR-UPC | DAC-SSR-UPC | ETSI |
| DanKook University | DanKook University | TTA |
| DARS TELECOM S.L. | DARS TELECOM S.L. | ETSI |
| DeepSig Inc | DeepSig Inc | ATIS |
| Deere & Company | John Deere GmbH & Co. KG | ETSI |
| DEKRA | DEKRA | ETSI |
| Dell Technologies | Dell Technologies | ATIS |
| DENSO CORPORATION | DENSO CORPORATION | ARIB |
| Department of Telecom | Department of Telecom | TSDSI |
| Dept of Home Affairs | Dept of Home Affairs | ETSI |
| Deutsche Telekom AG | Deutsche Telekom AG | ETSI |
| Deutsche Telekom AG | OTE S.A | ETSI |
| Deutsche Telekom AG | Telekom Deutschland GmbH | ETSI |
| Deutsche Telekom AG | T-Mobile Austria GmbH | ETSI |
| Deutsche Telekom AG | T-Mobile Polska S.A. | ETSI |
| Deutsche Telekom AG | T-Mobile USA | ETSI |
| DIGG | DIGG | ETSI |
| DLR | DLR | ETSI |
| DOCOMO Beijing Labs | DOCOMO Beijing Labs | CCSA |
| Dolby Laboratories Inc. | Dolby France SAS | ETSI |
| Dolby Laboratories Inc. | Dolby Germany GmbH | ETSI |
| Dolby Laboratories Inc. | Dolby Sweden AB | ETSI |
| Dolby Technology India Pvt Ltd | Dolby Technology India Pvt Ltd | TSDSI |
| DP | DP | ETSI |
| DSIT | DSIT | ETSI |
| DTCY | DTCY | TTC |
| DTS Licensing Limited | DTS Licensing Limited | ETSI |
| EA Consult Services Ltd | EA Consult Services Ltd | ETSI |
| EBU | EBU | ETSI |
| Echostar | EchoStar | ETSI |
| ECTL | ECTL | TSDSI |
| EDF | EDF Recherche et Développement | ETSI |
| EFORT | EFORT | ETSI |
| Elbit Systems C4l and Cyber Ltd | Elbit Systems | ETSI |
| Element Materials Technology | Element Materials Technology | ETSI |
| Elena | Elena | TSDSI |
| Embotech AG | Embotech AG | ETSI |
| Emerson Electric Co. | National Instruments Corp. | ETSI |
| EMITE | EMITE | ETSI |
| ENENSYS | ENENSYS | ETSI |
| Ericsson | Ericsson (China) | CCSA |
| Ericsson | Ericsson AB. | ATIS |
| Ericsson | Ericsson Canada Inc. | ATIS |
| Ericsson | Ericsson España S.A. | ETSI |
| Ericsson | Ericsson France S.A.S | ETSI |
| Ericsson | Ericsson GmbH, Eurolab | ETSI |
| Ericsson | Ericsson Hungary Ltd | ETSI |
| Ericsson | Ericsson Inc. | ATIS |
| Ericsson | Ericsson India Private Limited | TSDSI |
| Ericsson | Ericsson Japan K.K. | ARIB |
| Ericsson | Ericsson Limited | ETSI |
| Ericsson | Ericsson LM | ETSI |
| Ericsson | Ericsson Telecom S.A. de C.V. | ATIS |
| Ericsson | Ericsson Telecomunicazioni SpA | ETSI |
| Ericsson | Ericsson-LG Co., LTD | TTA |
| Ericsson | L.M. Ericsson Limited | ETSI |
| Erillisverkot | Erillisverkot | ETSI |
| ERNET India | ERNET India | TSDSI |
| ESA | ESA | ETSI |
| E-SPACE Inc | E-SPACE | ETSI |
| ETELM | ETELM | ETSI |
| Etherstack Plc. | Etherstack Wireless Limited | ETSI |
| ETRI | ETRI | TTA |
| ETS-Lindgren | ETS-Lindgren Europe | ETSI |
| EURECOM | EURECOM | ETSI |
| Eurofins KCTL | Eurofins KCTL | ETSI |
| European Commission | European Commission | ETSI |
| European Patent Organisation | European Patent Organisation | ETSI |
| EUTC | EUTC | ETSI |
| Eutelsat Group | Eutelsat Group | ETSI |
| EVE Compliancy Solutions | EVE Compliancy Solutions | ETSI |
| Everactive | Everactive | ATIS |
| Everbridge | one2many B.V. | ETSI |
| Ewha Womans University | Ewha Womans University | TTA |
| F5 | F5 | ETSI |
| Fabasoft AG | Fabasoft AG | ETSI |
| Facebook Japan G.K. | Facebook Japan G.K. | ARIB |
| Fastweb S.p.A. | Fastweb S.p.A. | ETSI |
| FAU | FAU | ETSI |
| FBK | FBK | ETSI |
| FCC | FCC | ATIS |
| FirstNet | FirstNet | ATIS |
| FORCE Technology | FORCE Technology | ETSI |
| Ford | Ford | ETSI |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Fraunhofer FOKUS | ETSI |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Fraunhofer HHI | ETSI |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Fraunhofer IIS | ETSI |
| Frequentis AG | Frequentis AG | ETSI |
| Fudan University | Fudan University | CCSA |
| Fujitsu Limited | Fujitsu Limited | ARIB |
| Fujitsu Limited | Fujitsu Limited | ETSI |
| Fujitsu Limited | Fujitsu Limited | TTC |
| GateHouse Group A/S | Gatehouse Satcom A/S | ETSI |
| GDCNI | GDCNI | CCSA |
| GE Network Technologies, LLC | GE Network Technologies, LLC | ATIS |
| GEESPACE | GEESPACE | CCSA |
| Giesecke+Devrient GmbH | G+D MS | ETSI |
| Gigaset Technologies | Gigaset Technologies | ETSI |
| Gilat | Gilat | ETSI |
| GIST | GIST | TTA |
| GLOBALSTAR Inc. | GLOBALSTAR Inc. | ETSI |
| GM - ATCI | GM - ATCI | ETSI |
| Google LLC | Google Ireland Limited | ETSI |
| Google LLC | Google Korea LLC | TTA |
| Group 2000 | Group 2000 | ETSI |
| GTRC | GTRC | ETSI |
| GUANGDONG GENIUS TECHNOLOGY CO | GUANGDONG GENIUS TECHNOLOGY CO | CCSA |
| Guangdong OPPO Mobile Telecommunications Corp., Ltd. | BARADINE | ETSI |
| Guangdong OPPO Mobile Telecommunications Corp., Ltd. | Chengdu OPPO Telecommunication | CCSA |
| Guangdong OPPO Mobile Telecommunications Corp., Ltd. | Guangdong OPPO Mobile Telecom. | CCSA |
| Guangdong OPPO Mobile Telecommunications Corp., Ltd. | Hangzhou Mengyuxiang | CCSA |
| Guangdong OPPO Mobile Telecommunications Corp., Ltd. | OnePlus | CCSA |
| Guangdong OPPO Mobile Telecommunications Corp., Ltd. | OnePlus | ETSI |
| Guangdong OPPO Mobile Telecommunications Corp., Ltd. | OPPO | ETSI |
| Guangdong OPPO Mobile Telecommunications Corp., Ltd. | OPPO (chongqing) Intelligence | CCSA |
| Guangdong OPPO Mobile Telecommunications Corp., Ltd. | OPPO Beijing | CCSA |
| Guangdong OPPO Mobile Telecommunications Corp., Ltd. | Realme Shenzhen | ETSI |
| Guangdong OPPO Mobile Telecommunications Corp., Ltd. | Reflection B.V. | ETSI |
| Guangdong OPPO Mobile Telecommunications Corp., Ltd. | Shenzhen Heytap | CCSA |
| Guangdong OPPO Mobile Telecommunications Corp., Ltd. | Unumplus | ETSI |
| GW | GW | ETSI |
| Hanbat National University | Hanbat National University | TTA |
| HARTING Technology Group | HA/ST | ETSI |
| HEAD acoustics GmbH | HEAD acoustics GmbH | ETSI |
| Hewlett-Packard Enterprise | Hewlett-Packard Enterprise | ETSI |
| HISPASAT SA | HISPASAT SA | ETSI |
| HOME OFFICE | HOME OFFICE | ETSI |
| Honda Motor Co., Ltd | Honda Motor Co., Ltd | ARIB |
| Hong Kong Applied Science & Technology Research Institute | ASTRI | ETSI |
| Honor | Honor Device Beijing | CCSA |
| Honor | Honor Intelligent Tec.Shanghai | CCSA |
| Honor | Honor Machine Shenzhen | CCSA |
| Honor Device Co., Ltd | Honor | CCSA |
| Honor Device Co., Ltd | Honor | ETSI |
| Honor Device Co., Ltd | Honor Device Beijing | CCSA |
| Honor Device Co., Ltd | Honor Intelligent Tec.Shanghai | CCSA |
| Honor Device Co., Ltd | Honor Machine Shenzhen | CCSA |
| HTC Communications Co., Ltd. | HTC Communications Co., Ltd. | CCSA |
| Huawei Technologies Co., Ltd. | Futurewei | ETSI |
| Huawei Technologies Co., Ltd. | Futurewei Technologies | ATIS |
| Huawei Technologies Co., Ltd. | HiSilicon Technologies Co. Ltd | CCSA |
| Huawei Technologies Co., Ltd. | Huawei Device Co., Ltd | CCSA |
| Huawei Technologies Co., Ltd. | HUAWEI TECH. GmbH | ETSI |
| Huawei Technologies Co., Ltd. | Huawei Tech.(UK) Co.. Ltd | ETSI |
| Huawei Technologies Co., Ltd. | Huawei Technologies (Korea) | TTA |
| Huawei Technologies Co., Ltd. | HUAWEI TECHNOLOGIES Co. Ltd. | ETSI |
| Huawei Technologies Co., Ltd. | HuaWei Technologies Co., Ltd | CCSA |
| Huawei Technologies Co., Ltd. | Huawei Technologies France | ETSI |
| Huawei Technologies Co., Ltd. | HUAWEI Technologies Japan K.K. | ARIB |
| Huawei Technologies Co., Ltd. | Huawei Technologies Japan K.K. | TTC |
| Huawei Technologies Co., Ltd. | Huawei Technologies R&D UK | ETSI |
| Huawei Technologies Co., Ltd. | Huawei Technologies Sweden AB | ETSI |
| Huawei Technologies Co., Ltd. | Huawei Telecommunication India | TSDSI |
| Husqvarna AB | Husqvarna AB | ETSI |
| Hytera Communications Corp. | Hytera Communications Corp. | CCSA |
| Hyundai Motor Company | Hyundai Motor Company | TTA |
| IBM Europe | IBM Europe | ETSI |
| ICS | ICS | ETSI |
| IDEMIA | IDEMIA | ETSI |
| IDRBT | IDRBT | TSDSI |
| III | III | ETSI |
| IIIT Bangalore | IIIT Bangalore | TSDSI |
| IISc, Bangalore | IISc, Bangalore | TSDSI |
| IIT Bhilai | IIT Bhilai | TSDSI |
| IIT Delhi | IIT Delhi | TSDSI |
| IIT Gandhinagar | IIT Gandhinagar | TSDSI |
| IIT JODHPUR | IIT JODHPUR | TSDSI |
| IIT Kanpur | IIT Kanpur | TSDSI |
| IIT Mandi | IIT Mandi | TSDSI |
| IIT Patna | IIT Patna | TSDSI |
| IIT, Kharagpur | IIT, Kharagpur | TSDSI |
| IMDA | IMDA | ETSI |
| Imperial College London | Imperial College London | ETSI |
| IMU | IMU | ETSI |
| Indian Institute of Tech (H) | Indian Institute of Tech (H) | TSDSI |
| Indian Institute of Tech (M) | Indian Institute of Tech (M) | TSDSI |
| Indian Institute of Technology Bombay | IIT Bombay | TSDSI |
| INFINEON TECHNOLOGIES | INFINEON TECHNOLOGIES | ETSI |
| Institut Mines-Telecom | Institut Mines-Telecom | ETSI |
| Institute VEDECOM | Institute VEDECOM | ETSI |
| Intel | Intel | ATIS |
| Intel | Intel Belgium SA/NV | ETSI |
| Intel | Intel China Ltd. | CCSA |
| Intel | Intel Corporation (UK) Ltd | ETSI |
| Intel | Intel Corporation Italia SpA | ETSI |
| Intel | Intel Corporation SAS | ETSI |
| Intel | Intel Deutschland GmbH | ETSI |
| Intel | Intel Ireland | ETSI |
| Intel | Intel Sweden AB | ETSI |
| Intel | Intel Technology India Pvt Ltd | TSDSI |
| Intel | Intel Technology Poland SP Zoo | ETSI |
| Intellian Technologies | Intellian Technologies | TTA |
| Intelsat | Intelsat | ATIS |
| InterDigital Communications | InterDigital Communications | ATIS |
| InterDigital, Inc. | InterDigital Belgium. LLC | ETSI |
| InterDigital, Inc. | InterDigital Canada | ATIS |
| InterDigital, Inc. | InterDigital Finland Oy | ETSI |
| InterDigital, Inc. | InterDigital France R&D, SAS | ETSI |
| InterDigital, Inc. | InterDigital New York | ATIS |
| InterDigital, Inc. | InterDigital Pennsylvania | ATIS |
| InterDigital, Inc. | InterDigital, Europe, Ltd. | ETSI |
| InterDigital, Inc. | InterDigital, Inc. | ETSI |
| Intersec | Intersec | ETSI |
| Intertek Group plc | Intertek | ETSI |
| IPCom GmbH & Co.KG | IPCom GmbH & Co.KG | ETSI |
| IPLOOK | IPLOOK | CCSA |
| Iridium Satellite LLC | Iridium Satellite LLC | ATIS |
| IRT Saint Exupery | IRT Saint Exupery | ETSI |
| ISED | ISED | ETSI |
| ISRO | ISRO | TSDSI |
| ISSDU | ISSDU | ETSI |
| ITL | ITL | TTA |
| ITOCHU Techno-Solutions Corp | ITOCHU Techno-Solutions Corp | TTC |
| ITRI | ITRI | ETSI |
| ITRON SAS | ITRON SAS | ETSI |
| Ittiam Systems Pvt Ltd | Ittiam System Pvt Ltd | TSDSI |
| Japan Radio Co., Ltd | Japan Radio Co., Ltd | ARIB |
| JMA Wireless | JMA Wireless | ATIS |
| Johns Hopkins University APL | Johns Hopkins University APL | ATIS |
| JSI GmbH | JSI GmbH | ETSI |
| Juniper Networks, Inc. | Juniper Networks | ETSI |
| KAIST | KAIST | TTA |
| Kapsch TrafficCom AG | Kapsch TrafficCom AG | ETSI |
| KDDI Corporation | KDDI Corporation | ARIB |
| KDDI Corporation | KDDI Corporation | TTC |
| Kepler | Kepler | ETSI |
| Keysight Technologies, Inc. | Keysight Technologies UK Ltd | ETSI |
| Kigen | Kigen | TSDSI |
| Kontron | Kontron Transportation France | ETSI |
| Kookmin University | Kookmin University | TTA |
| Korea Testing Laboratory | Korea Testing Laboratory | TTA |
| Korea University | Korea University | TTA |
| Korean Intellectual Property Office | KIPO | TTA |
| KPN N.V. | KPN N.V. | ETSI |
| Kratos Defense | Kratos Defense | ATIS |
| KRRI | KRRI | TTA |
| KT Corp. | KT Corp. | TTA |
| Kymeta Corporation | Kymeta Corporation | ETSI |
| Kyocera Corporation | Kyocera Corporation | ARIB |
| Kyonggi University | Kyonggi University | TTA |
| Kyoto University | Kyoto University | ETSI |
| L3Harris Technologies | L3Harris Technologies | ATIS |
| Langbo | Langbo | CCSA |
| Lansus Technologies Inc. | Lansus | CCSA |
| LEGRAND FRANCE | LEGRAND FRANCE | ETSI |
| Lekha Wireless Solutions | Lekha Wireless Solutions | TSDSI |
| Lenovo | Lenovo (Beijing) Ltd | CCSA |
| Lenovo Group Limited | Beijing Lenovo Software Ltd. | CCSA |
| Lenovo Group Limited | Lenovo (Beijing) Ltd | CCSA |
| Lenovo Group Limited | Lenovo Future Communications | CCSA |
| Lenovo Group Limited | Lenovo Information Technology | CCSA |
| Lenovo Group Limited | Motorola Mobile Com Technology | CCSA |
| Lenovo Group Limited | Motorola Mobility España SA | ETSI |
| Lenovo Group Limited | Motorola Mobility France S.A.S | ETSI |
| Lenovo Group Limited | Motorola Mobility Germany GmbH | ETSI |
| Lenovo Group Limited | Motorola Mobility UK Ltd. | ETSI |
| Leonardo SpA | Leonardo SpA | ETSI |
| LG Electronics Inc. | LG Electronics Deutschland | ETSI |
| LG Electronics Inc. | LG Electronics Finland | ETSI |
| LG Electronics Inc. | LG Electronics France | ETSI |
| LG Electronics Inc. | LG Electronics Inc. | TTA |
| LG Electronics Inc. | LG Electronics Polska | ETSI |
| LG Electronics Inc. | LG Electronics UK | ETSI |
| LG Uplus | LG Uplus | TTA |
| Ligado Networks | Ligado Networks | ETSI |
| LKA Niedersachsen | LKA Niedersachsen | ETSI |
| Lockheed Martin | Lockheed Martin | ATIS |
| Logius | Logius | ETSI |
| Lynk Global | Lynk Global | ATIS |
| Magister Solutions Ltd | Magister Solutions Ltd | ETSI |
| Maketh Secure Limited | Maketh Secure Limited | ETSI |
| Marquis Technologies | Marquis Technologies | TSDSI |
| Marvell Technology, Inc. | Marvell Technology, Inc. | ATIS |
| MATRIXX Software, Inc. | MATRIXX Software | ETSI |
| Mavenir | Mavenir | ETSI |
| MaxWave Microelectronics Ltd. | MaxWave Micro | CCSA |
| MediaTek Inc | MediaTek (Chengdu) Inc. | CCSA |
| MediaTek Inc | MediaTek (Hefei) Inc. | CCSA |
| MediaTek Inc | MediaTek (Shenzhen) Inc. | CCSA |
| MediaTek Inc | MediaTek (Wuhan) Inc. | CCSA |
| MediaTek Inc | MediaTek Beijing Inc. | CCSA |
| MediaTek Inc | MediaTek Finland | ETSI |
| MediaTek Inc | MediaTek Germany GmbH | ETSI |
| MediaTek Inc | MediaTek Inc. | ETSI |
| MediaTek Inc | Mediatek India Technology Pvt. | TSDSI |
| MediaTek Inc | MediaTek Korea Inc. | TTA |
| MediaTek Inc | MediaTek Sweden AB | ETSI |
| MediaTek Inc | MediaTek Technology USA Inc. | ATIS |
| MediaTek Inc | MediaTek UK | ETSI |
| MediaTek Inc | MediaTek USA | ATIS |
| MediaTek Inc | RICHTEK KOREA | TTA |
| MediaTek Inc | Shanghai Chen Si Electronics | CCSA |
| MeitY | MeitY | TSDSI |
| Meizu Technology | Meizu Technology | CCSA |
| Mercedes-Benz AG | Mercedes-Benz AG | ETSI |
| Mesaqin.com s.r.o (Ltd.) | Mesaqin.com s.r.o (Ltd.) | ETSI |
| Meta Group | Meta India | TSDSI |
| Meta Group | Meta Ireland | ETSI |
| Meta Group | Meta USA | ATIS |
| Microchip Technology, Inc. | Microchip Technology, Inc. | ATIS |
| Microsoft Ireland | Microsoft Ireland | ETSI |
| MidWave Wireless | MidWave Wireless | ATIS |
| MIMIT | MIMIT | ETSI |
| MinEA | MinEA | ETSI |
| MINISTERE DE L'INTERIEUR | MINISTERE DE L'INTERIEUR | ETSI |
| Ministère Economie et Finances | Ministère Economie et Finances | ETSI |
| Ministry for Digital - Spain | Ministry for Digital - Spain | ETSI |
| Ministry of Economic Affairs and Climate Policy | Netherlands Police | ETSI |
| Ministry of Economic Affairs and Climate Policy | PIDS | ETSI |
| Ministry of Transport SR | Ministry of Transport SR | ETSI |
| MITRE | MITRE Corporation | ETSI |
| MITRE | MITRE-FFRDC | ATIS |
| Mitsubishi Electric Co. | Mitsubishi Electric Co. | ARIB |
| Mitsubishi Electric Corp | Mitsubishi Electric Corp | TTC |
| Mitsubishi Electric Corporation | Mitsubishi Electric RCE | ETSI |
| Motorola Solutions Inc. | Motorola Solutions Germany | ETSI |
| Motorola Solutions Inc. | Motorola Solutions UK Ltd. | ETSI |
| MTCC | MTCC | TTA |
| Murata Manufacturing Co Ltd. | Murata Manufacturing Co Ltd. | ARIB |
| MVG Industries | MVG Industries | ETSI |
| National Radio and Television Administration, China | ABS | CCSA |
| National Radio Research Agency | National Radio Research Agency | TTA |
| National Spectrum Consortium | National Spectrum Consortium | ATIS |
| National Technical Assistance Centre | National Technical Assistance | ETSI |
| nbn co Limited | nbn co Limited | ETSI |
| NCI Agency | NCI Agency | ETSI |
| NCIS | NCIS | ETSI |
| NCSC | NCSC | ETSI |
| NDRE | NDRE | ETSI |
| NEC Group | NEC Corporation | ARIB |
| NEC Group | NEC Corporation | ETSI |
| NEC Group | NEC Corporation. | TTC |
| NEC Group | NEC Europe Ltd | ETSI |
| NEC Group | NEC Telecom MODUS Ltd. | ETSI |
| NEMERGENT | NEMERGENT | ETSI |
| NERC-DTV/CCSA | NERCDTV | CCSA |
| Netscout Systems Inc. | Netscout Systems Inc. | ETSI |
| Network Rail | Network Rail | ETSI |
| New H3C | New H3C Technologies Co., Ltd. | CCSA |
| NextNav | NextNav | ATIS |
| NHK | NHK | ARIB |
| NICT | NICT | ARIB |
| Niral Networks Private Limited | Niral | TSDSI |
| NIST | NIST | ATIS |
| Nokia Corporation | Nokia | ATIS |
| Nokia Corporation | Nokia Belgium | ETSI |
| Nokia Corporation | Nokia Corporation | ETSI |
| Nokia Corporation | Nokia Denmark | ETSI |
| Nokia Corporation | Nokia France | ETSI |
| Nokia Corporation | Nokia Germany | ETSI |
| Nokia Corporation | Nokia Hungary | ETSI |
| Nokia Corporation | Nokia Japan | ARIB |
| Nokia Corporation | Nokia Korea | TTA |
| Nokia Corporation | Nokia Poland | ETSI |
| Nokia Corporation | Nokia Shanghai Bell | CCSA |
| Nokia Corporation | Nokia Solutions & Networks (I) | TSDSI |
| Nokia Corporation | Nokia UK | ETSI |
| Nordic Semiconductor ASA | Nordic Semiconductor ASA | ETSI |
| Norwegian Communications Authority | Nkom | ETSI |
| NOVAMINT | NOVAMINT | ETSI |
| NPL | NPL | ETSI |
| NTIA | NTIA | ATIS |
| NTPU | NTPU | ETSI |
| NTT | NTT | TTC |
| NTT | DOCOMO Communications Lab. | ETSI |
| NTT | NTT corporation | ETSI |
| NTT | NTT DOCOMO INC.. | ARIB |
| NTT | NTT-AT Corp. | TTC |
| NTT DOCOMO INC. | NTT DOCOMO INC. | TTC |
| NTU | NTU | ETSI |
| Nufront(Beijing)Technology Co., Ltd. | NUFRONT | CCSA |
| NVIDIA | NVIDIA | ATIS |
| NXP Semiconductors Netherlands | NXP Semiconductors Netherlands | ETSI |
| NYCU | NYCU | ETSI |
| Obvios | Obvios | ETSI |
| Odido | Odido | ETSI |
| Ofcom (CH) | Ofcom (CH) | ETSI |
| Ofcom (U.K.) | Ofcom (U.K.) | ETSI |
| Oki Electric Industry Co. Ltd. | Oki Electric Industry Co. Ltd. | TTC |
| Omnispace | Omnispace | ATIS |
| ONE Media 3.0 LLC | ONE Media 3.0 LLC | ATIS |
| OptM Media | OptM Media | TSDSI |
| OQTEC | OQTEC | ETSI |
| Oracle Corporation | Oracle Corporation | ETSI |
| Orange | Orange | ETSI |
| Orange | Orange Romania | ETSI |
| Orange | Orange Spain | ETSI |
| Orange | Orange UK | ETSI |
| Österreichischer Rundfunk | ORS | ETSI |
| OTD_US | OTD_US | ATIS |
| P.I. WORKS | P.I. WORKS | ETSI |
| Pairpoint | Pairpoint | ETSI |
| Panasonic Holdings Corporation | Panasonic Holdings Corporation | ARIB |
| Panasonic Holdings Corporation | PANASONIC R&D Center Germany | ETSI |
| PCCW Global LTD. | PCCW Global B.V. | ETSI |
| PCI | PCI | CCSA |
| Peking University | Peking University | CCSA |
| Pengcheng laboratory | Pengcheng laboratory | CCSA |
| Peraton Labs | Peraton Labs | ATIS |
| Philips International B.V. | Philips International B.V. | ETSI |
| PHY Wireless | PHY Wireless | ATIS |
| PKUSZ | PKUSZ | CCSA |
| Plan-S | Plan-S | ETSI |
| PML | PML | CCSA |
| Polaris Wireless | Polaris Wireless | ATIS |
| Polisen | Polisen | ETSI |
| POST Luxembourg | POST Luxembourg | ETSI |
| Prasar Bharati | Prasar Bharati | TSDSI |
| Proximus Plc | Proximus Plc | ETSI |
| PSCE | PSCE | ETSI |
| PT PORTUGAL SGPS SA | PT PORTUGAL SGPS SA | ETSI |
| PTS | PTS | ETSI |
| Public Safety Canada | Public Safety Canada | ETSI |
| Purplevine Innovation Co. Ltd | Purplevine Innovation Co. Ltd | CCSA |
| Qihoo 360 | Qihoo 360 | CCSA |
| Qorvo | Qorvo | ETSI |
| Qualcomm Incorporated | Arriver Software AB | ETSI |
| Qualcomm Incorporated | Qualcomm Atheros, Inc. | ATIS |
| Qualcomm Incorporated | QUALCOMM Europe Inc. - Italy | ETSI |
| Qualcomm Incorporated | QUALCOMM Europe Inc. - Spain | ETSI |
| Qualcomm Incorporated | Qualcomm France | ETSI |
| Qualcomm Incorporated | Qualcomm Germany | ETSI |
| Qualcomm Incorporated | Qualcomm Incorporated | ATIS |
| Qualcomm Incorporated | Qualcomm India Pvt Ltd | TSDSI |
| Qualcomm Incorporated | Qualcomm Innovation Center Inc | ATIS |
| Qualcomm Incorporated | QUALCOMM JAPAN LLC. | ARIB |
| Qualcomm Incorporated | Qualcomm Korea | TTA |
| Qualcomm Incorporated | Qualcomm Tech. Netherlands B.V | ETSI |
| Qualcomm Incorporated | Qualcomm Technologies | ATIS |
| Qualcomm Incorporated | Qualcomm Technologies Int | ETSI |
| Qualcomm Incorporated | Qualcomm Technologies Ireland | ETSI |
| Qualcomm Incorporated | QWCT | CCSA |
| Quanray | Quanray | CCSA |
| Quectel | Quectel | CCSA |
| Radisys Inc | RadiSys | ETSI |
| Radix Security GmbH | Radix Security GmbH | ETSI |
| Rakuten Mobile, Inc | Rakuten Mobile, Inc | ARIB |
| RATEL | RATEL | ETSI |
| Realme (Shenzhen) | Realme (Shenzhen) | CCSA |
| Reliance Industries Limited | Jio | ETSI |
| Reliance Jio | Reliance Jio | TSDSI |
| RISE Research Institutes of Sweden | RISE | ETSI |
| Robert Bosch GmbH | ROBERT BOSCH GmbH | ETSI |
| Rogers Communications Canada | Rogers Communications Canada | ETSI |
| ROHDE & SCHWARZ | ROHDE & SCHWARZ | ETSI |
| SageRAN | SageRAN | CCSA |
| SAICT | SAICT | CCSA |
| Samsung Electronics | BEIJING SAMSUNG TELECOM R&D | CCSA |
| Samsung Electronics | Harman GmbH | ETSI |
| Samsung Electronics | Samsung Electronics Co., Ltd | TTA |
| Samsung Electronics | Samsung Electronics Czech | ETSI |
| Samsung Electronics | Samsung Electronics France SA | ETSI |
| Samsung Electronics | Samsung Electronics GmbH | ETSI |
| Samsung Electronics | Samsung Electronics Iberia SA | ETSI |
| Samsung Electronics | Samsung Electronics Nordic AB | ETSI |
| Samsung Electronics | Samsung Electronics Polska | ETSI |
| Samsung Electronics | Samsung Guangzhou Mobile R&D | CCSA |
| Samsung Electronics | Samsung Nanjing | CCSA |
| Samsung Electronics | Samsung R&D Institute India | TSDSI |
| Samsung Electronics | SAMSUNG R&D INSTITUTE JAPAN | ARIB |
| Samsung Electronics | Samsung R&D Institute UK | ETSI |
| Samsung Electronics | Samsung Research America | ATIS |
| Samsung Electronics | Samsung Shenzhen | CCSA |
| Sateliot | Sateliot | ETSI |
| SDI Squared | SDI Squared | ETSI |
| Sectra AB | Sectra Communications AB | ETSI |
| Security Service | Security Service | ETSI |
| Semtech Neuchatel SA | Semtech Neuchatel SA | ETSI |
| Sennheiser electronic SE | Sennheiser electronic SE | ETSI |
| Sensus UK | Sensus UK | ETSI |
| Sepura Ltd | Sepura Ltd | ETSI |
| Sequans Communications | Sequans Communications | ETSI |
| SES S.A. | SES S.A. | ETSI |
| SETS | SETS | TSDSI |
| SEU | SEU | CCSA |
| SGDSN | SGDSN | ETSI |
| SGITG | SGITG | CCSA |
| SGS Wireless | SGS Wireless | ETSI |
| Shanghai Jiao Tong University | Shanghai Jiao Tong University | CCSA |
| SHARP Corporation | SHARP Corporation | ARIB |
| SIA | SIA | CCSA |
| Siemens AG | Siemens AG | ETSI |
| Signalchip Innovations Pvt Ltd | Signalchip Innovations Pvt. | TSDSI |
| SIST | SIST | ETSI |
| Sisvel International S.A. | Sisvel | ETSI |
| SK Telecom | SK Telecom | TTA |
| SKY Perfect JSAT Corporation | SKY Perfect JSAT Corporation | ARIB |
| Skylo Technologies | Skylo Technologies | ATIS |
| Skyworks Solutions Inc. | Skyworks Solutions Inc. | ETSI |
| Smart Internet Lab | Smart Internet Lab | ETSI |
| SmarterMicro Inc. | SmarterMicro Inc. | CCSA |
| SnT - University of Luxembourg | SnT - University of Luxembourg | ETSI |
| SoftBank Corp. | SoftBank Corp. | ARIB |
| Softel Systems Pty Ltd | Softel Systems | ETSI |
| Softil Ltd | Softil Ltd | ETSI |
| Sony Group Corporation | Sony Corporation | ARIB |
| Sony Group Corporation | Sony Europe B.V. | ETSI |
| Sony Group Corporation | Sony Group Corporation | ARIB |
| Sooktha Consulting Pvt Ltd | Sooktha Consulting Pvt Ltd | TSDSI |
| Soongsil University | Soongsil University | TTA |
| SOS Alarm | SOS Alarm | ETSI |
| Southern Linc. | Southern Linc. | ATIS |
| Southwest Jiaotong university | Southwest Jiaotong university | CCSA |
| SpaceX | SpaceX | ETSI |
| Spark NZ | Spark NZ Ltd | ATIS |
| Spirent Communications | Spirent Communications | ETSI |
| Sporton International Inc | Sporton International Inc | ETSI |
| SRTC | SRTC | CCSA |
| SS8 | SS8 | ETSI |
| SSNS | SSNS | ETSI |
| SSST | SSST | CCSA |
| Starpoint | Starpoint | CCSA |
| STE IDIRECT IRELAND LTD | STE IDIRECT IRELAND LTD | ETSI |
| Sumitomo Electric Industries, Ltd. | Sumitomo Elec. Industries, Ltd | ARIB |
| SUNGKYUNKWAN UNIVERSITY | SUNGKYUNKWAN UNIVERSITY | TTA |
| SUTD | SUTD | ETSI |
| Suzhou Sushi Testing Group Co.,Ltd. | TOWE Wireless | ETSI |
| Swift Navigation | Swift Navigation | ATIS |
| SWISSCOM | SWISSCOM | ETSI |
| SWR | SWR | ETSI |
| SyncTechno Inc. | SyncTechno Inc. | TTA |
| Syniverse | Syniverse | TSDSI |
| sysmocom | sysmocom | ETSI |
| TA | TA | ETSI |
| Tait International Ltd | Tait Europe Limited | ETSI |
| TATA Communications Ltd | TATA Communications Ltd | TSDSI |
| Tata Elxsi | Tata Elxsi Limited. | TSDSI |
| TCL Industries Holdings Co., Ltd. | TCL | CCSA |
| TCS | TCS | TSDSI |
| TD Tech Ltd | TD Tech Ltd | CCSA |
| TDF | TDF | ETSI |
| Tech Mahindra Limited | Tech Mahindra Limited | TSDSI |
| Tejas Network Limited | Tejas Network Limited | TSDSI |
| Tektronix GmbH | Tektronix GmbH | ETSI |
| TELECOM ITALIA S.p.A. | TELECOM ITALIA S.p.A. | ETSI |
| Telefónica | Telefonica Germany GmbH | ETSI |
| Telefónica | TELEFONICA S.A. | ETSI |
| Telenor Group (Telenor ASA) | TELENOR ASA | ETSI |
| Telesat Canada | Telesat International Limited | ETSI |
| Telia Company AB | Telia Company AB | ETSI |
| Telit IoT Solution Holding, Ltd | Telit Communications S.p.A. | ETSI |
| Telstra Limited | Telstra Limited | ETSI |
| TELUS | TELUS | ATIS |
| Tencent | Tencent | CCSA |
| Tencent Cloud | Tencent Cloud | CCSA |
| Teradyne | Teradyne | ATIS |
| TerreStar Solutions Inc. | TerreStar Solutions Inc. | ATIS |
| Texas A&M University | Texas A&M University | ETSI |
| TEXAS Instruments | TEXAS Instruments | ETSI |
| Thales group | THALES | ETSI |
| The Finnish Transport and Communications Agency | TRAFICOM | ETSI |
| TI Group | Shanghai Tejet Com Technology | CCSA |
| Tiami Networks | Tiami Networks | ATIS |
| TII | TII | ETSI |
| T-Mobile USA Inc. | T-Mobile USA Inc. | ATIS |
| TNO | TNO | ETSI |
| Tongji University | Tongji University | CCSA |
| Toshiba Corporation | Toshiba | ETSI |
| TOYOTA Info Technology Center | TOYOTA Info Technology Center | ETSI |
| TOYOTA MOTOR CORPORATION | TOYOTA MOTOR CORPORATION | TTC |
| Trafikverket | Trafikverket | ETSI |
| Transsion Holdings | Transsion Holdings | CCSA |
| TransUnion | TransUnion | ATIS |
| Trimble | Trimble | ATIS |
| Tron Future Tech Inc. | Tron Future Tech Inc. | ETSI |
| TTP plc | TTP plc | ETSI |
| Turk Telekomunikasyon A.S. | Turk Telekomunikasyon A.S. | ETSI |
| TURKCELL | TURKCELL | ETSI |
| U.S. Department of Defense | U.S. Department of Defense | ATIS |
| U.S. Department of Transport. | U.S. Department of Transport. | ATIS |
| U.S. National Security Agency | U.S. National Security Agency | ATIS |
| Uangel Corporation | Uangel | TTA |
| Ubiik | Ubiik | ETSI |
| ubinexus | ubinexus | CCSA |
| u-blox AG | u-blox AG | ETSI |
| UESTC | UESTC | CCSA |
| UL VS Ltd | UL VS Ltd | ETSI |
| UMA | UMA | ETSI |
| UNIBO | UNIBO | ETSI |
| UniBw M | UniBw M | ETSI |
| Union Inter. Chemins de Fer | Union Inter. Chemins de Fer | ETSI |
| Union Telephone Company | Union Telephone Company | ATIS |
| UNISOC | Spreadtrum | CCSA |
| UNISOC | UNISOC | CCSA |
| UNISOC | UNISOC Beijing | CCSA |
| UPV/EHU | UPV/EHU | ETSI |
| US Cellular Corporation. | US Cellular Corporation. | ATIS |
| US DHS Science & Technology | US DHS Science & Technology | ATIS |
| US Government Employee | DISA | ATIS |
| UTIMACO TS GmbH | UTIMACO TS GmbH | ETSI |
| UTokyo | UTokyo | ETSI |
| Vaan Megam | Vaan Megam | TSDSI |
| Valeo | Valeo | ETSI |
| Valid Solucoes e Servicos de Seguranca em Meios de Pagamento e Identificacao SA | VALID SOLUCIONES TECNOLÓGICAS | ETSI |
| valid8 | Valid8 | ETSI |
| Vanchip | Vanchip | CCSA |
| Verizon Corporate Services Group Inc. | Verizon Denmark | ETSI |
| Verizon Corporate Services Group Inc. | Verizon Finland | ETSI |
| Verizon Corporate Services Group Inc. | Verizon France | ETSI |
| Verizon Corporate Services Group Inc. | Verizon Netherlands | ETSI |
| Verizon Corporate Services Group Inc. | Verizon Spain | ETSI |
| Verizon Corporate Services Group Inc. | Verizon Sweden | ETSI |
| Verizon Corporate Services Group Inc. | Verizon Switzerland AG | ETSI |
| Verizon Corporate Services Group Inc. | Verizon UK Ltd | ETSI |
| Vestel Elektronik Sanayi ve Ticaret A.S. | Vestel | ETSI |
| Viasat, Inc. Group | Inmarsat | ETSI |
| Viasat, Inc. Group | ViaSat Satellite Holdings Ltd | ETSI |
| Viavi Solutions | VIAVI Solutions | ETSI |
| vivo Mobile Communication Co., Ltd | iQoo | CCSA |
| vivo Mobile Communication Co., Ltd | Nanjing vivo Software Tech. | CCSA |
| vivo Mobile Communication Co., Ltd | Tomorrow's Creation Labs | ARIB |
| vivo Mobile Communication Co., Ltd | vivo Mobile Com. (Chongqing) | CCSA |
| vivo Mobile Communication Co., Ltd | vivo Mobile Communication (H) | CCSA |
| vivo Mobile Communication Co., Ltd | vivo Mobile Communication (S) | CCSA |
| vivo Mobile Communication Co., Ltd | vivo Mobile Communication Co., | CCSA |
| vivo Mobile Communication Co., Ltd | vivo Software Technology | CCSA |
| vivo Mobile Communication Co., Ltd | VIVO TECH GmbH | ETSI |
| vivo Mobile Communication Co., Ltd | vivo Wisdom Technology | CCSA |
| Vodafone Group PLC | Vodafone GmbH | ETSI |
| Vodafone Group PLC | VODAFONE Group Plc | ETSI |
| Vodafone Group PLC | Vodafone Ireland Plc | ETSI |
| Vodafone Group PLC | Vodafone Italia SpA | ETSI |
| Vodafone Group PLC | Vodafone Romania S.A. | ETSI |
| Vodafone Group PLC | Vodafone Telekomünikasyon A.S. | ETSI |
| VoiceAge Corporation | VoiceAge Corporation | ETSI |
| Volkswagen AG | Volkswagen AG | ETSI |
| VTT | VTT | ETSI |
| WE Certification Oy | WE Certification Oy | ETSI |
| Wiliot Ltd. | Wiliot Ltd. | ETSI |
| WILUS Inc. | WILUS Inc. | TTA |
| Wipro | Wipro | TSDSI |
| Wipro GE | Wipro GE | TSDSI |
| Wisig Networks Pvt Ltd | Wisig Networks Pvt Ltd | TSDSI |
| XGN | XGN | ETSI |
| Xiamen Sanan Integr. Circuit | Xiamen Sanan Integr. Circuit | CCSA |
| Xiaomi Corporation | Beijing Xiaomi Electronics | CCSA |
| Xiaomi Corporation | Beijing Xiaomi Mobile Software | CCSA |
| Xiaomi Corporation | Beijing Xiaomi Mobile Software | ETSI |
| Xiaomi Corporation | Beijing Xiaomi Software Tech | CCSA |
| Xiaomi Corporation | Xiaomi Communications | CCSA |
| Xiaomi Corporation | Xiaomi Digital Technology | CCSA |
| Xiaomi Corporation | Xiaomi Electronic Software | CCSA |
| Xiaomi Corporation | Xiaomi EV Technology | CCSA |
| Xiaomi Corporation | Xiaomi Technology | CCSA |
| Xiaomi Corporation | Xiaomi Technology (Polska) sp. | ETSI |
| Xiaomi Corporation | Xiaomi Technology France | ETSI |
| Xiaomi Corporation | Xiaomi Technology Germany GmbH | ETSI |
| Xiaomi Corporation | Xiaomi Technology Italy srl | ETSI |
| Xiaomi Corporation | Xiaomi Technology Netherlands | ETSI |
| Xiaomi Corporation | Xiaomi Technology Spain S.L | ETSI |
| Xiaomi Corporation | Xiaomi Technology UK Limited | ETSI |
| Xidian University | Xidian University | CCSA |
| XNET | XNET | ETSI |
| X-Net | X-Net | CCSA |
| Yonsei University | Yonsei University | TTA |
| Zhejiang University | Zhejiang University | CCSA |
| ZITiS | ZITiS | ETSI |
| Zollkriminalamt (ZKA) | Zollkriminalamt (ZKA) | ETSI |
| ZTE Corporation | Jetflow | CCSA |
| ZTE Corporation | Nubia Technology Co.,Ltd | CCSA |
| ZTE Corporation | Sanechips | CCSA |
| ZTE Corporation | ShenZhen Zhongxing Shitong | CCSA |
| ZTE Corporation | ZONSON | CCSA |
| ZTE Corporation | ZTE | TSDSI |
| ZTE Corporation | ZTE Corporation | CCSA |
| ZTE Corporation | ZTE Corporation | ETSI |
| ZTE Corporation | ZTE Deutschland | ETSI |
| ZTE Corporation | ZTE FRANCE SASU | ETSI |
| ZTE Corporation | ZTE Italia | ETSI |
| ZTE Corporation | ZTE Japan K.K. | ARIB |
| ZTE Corporation | ZTE JAPAN K.K. | TTC |
| ZTE Corporation | ZTE Korea Limited | TTA |
| ZTE Corporation | ZTE Photonics | CCSA |
| ZTE Corporation | ZXNE | CCSA |