| Name | ITU-R | ITU-T | ITU-D | Categories |
| 5G Americas, BELLEVUE | ASSOCIATE SG5 | | | REGINTORG |
| African Civil Society for the Information Society (ACSIS), DAKAR | | | X | REGINTORG |
| African ICT Consumers Network (AICN), COTONOU | | X | X | REGINTORG |
| African Network Information Centre Ltd., EBENE | | | X | REGINTORG |
| African Organization for Standardisation, Nairobi | | X | | REGINTORG |
| African Union of Broadcasting, DAKAR | X | X | X | REGINTORG |
| African Union, ADDIS ABABA | X | X | X | REGINTORG |
| Alliance for Telecommunications Industry Solutions, WASHINGTON | X | | | REGINTORG |
| American Registry for Internet Numbers (ARIN), Centreville | | X | X | REGINTORG |
| Arab Business Forum for Information and Communication Technology, CAIRO | | | X | REGINTORG |
| Arab Information and Communication Technology Organization (AICTO), TUNIS | X | X | X | REGINTORG |
| Arab League Educational, Cultural and Scientific Organization (ALECSO), Tunis | | X | X | REGINTORG |
| Arab Private Broadcasting Union, QURTOBA | X | X | X | REGINTORG |
| Arab Regulators Network, ALGIERS | X | X | X | REGINTORG |
| Arab States Broadcasting Union, TUNIS | X | | X | REGINTORG |
| ASECNA, Dakar | X | | | REGINTORG / RADIO SPECTRUM |
| Asia Pacific Network Information Centre, BRISBANE | | X | X | REGINTORG |
| Asia-Pacific Broadcasting Union, KUALA LUMPUR | X | X | X | REGINTORG |
| Asia-Pacific Institute for Broadcasting Development, KUALA LUMPUR | | | X | REGINTORG |
| Asociación de Reguladores Administrador del Foro Latinoamericano de Entes Reguladores de Telecomunicaciones, BOGOTA | X | X | X | REGINTORG |
| Asociación Interamericana de Empresas de Telecomunicaciones, MADRID | X | X | X | REGINTORG |
| Association for Progressive Communications, MELVILLE | X | | X | REGINTORG |
| Association of Andean Community Telecommunications Enterprises, QUITO | X | X | X | REGINTORG |
| Associação de Reguladores de Comunicações e Telecomunicações da Comunidade dos Países de Língua Portuguesa (ARCTEL-CPLP), LISBOA | | | X | REGINTORG |
| Associação Empresarial de Comunicações de Portugal, COIMBRA | | | X | REGINTORG |
| Associação Internacional das Comunicações de Expressão Portuguesa, LISBOA | | X | X | REGINTORG |
| Broadcast Networks Europe, BRUXELLES | X | | | REGINTORG |
| CableLabs, Louisville | | X | | REGINTORG / R&D INSTITUTION |
| Caribbean Broadcasting Union, BRIDGETOWN | X | | X | REGINTORG |
| Centre for Environment and Development for the Arab Region and Europe, CAIRO | | X | X | REGINTORG |
| Child Helpline International, AMSTERDAM | | X | X | REGINTORG |
| Committee on Radio Astronomy Frequencies, OXFORD | X | | | REGINTORG |
| Committee on Space Research, PARIS | X | | | REGINTORG |
| Common Market for Eastern and Southern Africa, Lusaka | X | X | X | REGINTORG |
| Commonwealth ITU Group, LONDON | X | X | X | REGINTORG |
| Commonwealth Telecommunications Organisation, LONDON | X | X | X | REGINTORG |
| Communauté économique des Etats de l'Afrique centrale, LIBREVILLE | X | X | X | REGINTORG |
| Communications Regulators Association of Southern Africa, Gaborone | X | X | X | REGINTORG / REGULATOR |
| Consortium d'Appui aux Actions pour la Promotion et le Développement de l'Afrique (CAPDA), DOUALA | | | X | REGINTORG |
| Consumers International, LONDON | | X | X | REGINTORG |
| Cooperation Council for the Arab States of the Gulf, MANAMA | X | X | X | REGINTORG |
| DECT Forum, BERN | ASSOCIATE SG5 | | | REGINTORG |
| Diaspora africaine pour la société de l'information, ONEX | | | X | REGINTORG |
| Digital Cooperation Organization, Riyadh | | | X | REGINTORG |
| Digital Opportunity Trust, OTTAWA | | | X | REGINTORG |
| Digital Radio Mondiale, LONDON | X | | X | REGINTORG |
| Dominic Foundation, Lugano | | X | X | REGINTORG |
| East African Communications Organization, KIGALI | X | X | X | REGINTORG |
| East African Community, ARUSHA | | | X | REGINTORG |
| Eastern Caribbean Telecommunications Authority, CASTRIES, West Indies | | | X | REGINTORG |
| Ecole Supérieure Multinationale des Télécommunications, DAKAR | X | X | X | REGINTORG |
| Economic Community for West African States, ABUJA | X | X | X | REGINTORG |
| ECPAT International, Bangkok | | | X | REGINTORG |
| EIDQ Association -The Association for the Directory Information and Related Search Industry, THALWIL | | ASSOCIATE SG17 | | REGINTORG |
| Environmental Coalition on Standards, Brussels | | X | | REGINTORG |
| European Broadcasting Union, GRAND-SACONNEX | X | X | X | REGINTORG |
| European Communications Office, COPENHAGEN K | X | X | X | REGINTORG |
| European Competitive Telecommunications Association, BRUSSELS | X | X | X | REGINTORG |
| European Patent Office, MÜNCHEN | | X | | REGINTORG |
| European Radio Amateurs' Organization, Sabadell | X | | | REGINTORG |
| European Telecommunications Network Operators' Association, BRUSSELS | X | X | X | REGINTORG |
| European Telecommunications Standards Institute, SOPHIA ANTIPOLIS CEDEX | X | X | X | REGINTORG |
| European Union, BRUSSELS | X | X | X | REGINTORG |
| Fiber Connect Council MENA Region, AMMAN | | | X | REGINTORG |
| Forum of Incident Response and Security Teams (FIRST), MORRISVILLE | | X | X | REGINTORG |
| FTTH Council Asia-Pacific, SINGAPORE | | | X | REGINTORG |
| G3ict - Global Initiative for Inclusive Information and Communication Technologies, ATLANTA | X | X | X | REGINTORG |
| GCC Standardization Organization (GSO), Riyadh | | X | | REGINTORG |
| Global ICT Standardization Forum for India (GISFI), PUNE | | X | | REGINTORG |
| Global Impact (Global Digital Inclusion), Alexandria | | | X | REGINTORG |
| Global Knowledge Partnership Foundation, GIJON-ASTURIAS | | | X | REGINTORG |
| Global Satellite Operators’ Association GSOA, BRUSSELS | X | | X | REGINTORG |
| GSM Association, LONDON | X | X | X | REGINTORG |
| HFCC-International Broadcasting Delivery, Praha 2 | X | | | REGINTORG |
| IJMA3-The Arab ICT Organization, BEIRUT | | X | X | REGINTORG |
| Indigenous Peoples ICT Task Force, GENÈVE | | | X | REGINTORG |
| Institute of Electrical and Electronics Engineers, Inc. (IEEE), Piscataway, NJ | X | X | X | REGINTORG |
| International Air Transport Association, MONTREAL | X | X | X | REGINTORG |
| International Amateur Radio Union, NEWINGTON | X | | X | REGINTORG |
| International Association of Broadcasting, MONTEVIDEO | X | | | REGINTORG |
| International Association of IT Lawyers (IAITL), HELLERUP | | X | | REGINTORG |
| International Association of Marine Aids to Navigation and Lighthouse Authorities, ST. GERMAIN EN LAYE | X | | | REGINTORG |
| International Astronautical Federation IAF Secretariat, PARIS | X | | | REGINTORG |
| International Astronomical Union, PARIS | X | | | REGINTORG |
| International Bureau of Weights and Measures, SEVRES CÉDEX | X | | | REGINTORG |
| International Center for Disability Resources on the Internet (ICDRI), ALEXANDRIA | | X | | REGINTORG |
| International Center for Promotion of Enterprises, LJUBLJANA | | | X | REGINTORG |
| International Chamber of Commerce, Paris | | | X | REGINTORG |
| International Committee of the Red Cross, GENÈVE | X | X | X | REGINTORG |
| International Council for Science, PARIS | X | | | REGINTORG |
| International Council on Large Electric Systems, PARIS | X | | | REGINTORG |
| International Electrotechnical Commission, GENÈVE 20 | X | X | X | REGINTORG |
| International Federation for Information Processing (IFIP), LAXENBURG | | X | X | REGINTORG |
| International Maritime Radio Association, LONDON | X | X | | REGINTORG |
| International Mobile Satellite Organization (IMSO), LONDON | X | X | X | REGINTORG |
| International Multilateral Partnership Against Cyber Threats (IMPACT), CYBERJAYA | | X | | REGINTORG |
| International Organization for Standardization, VERNIER, GENEVA | X | X | X | REGINTORG |
| International Special Committee on Radio Interference, YATELEY | X | | | REGINTORG |
| International Telecommunication Academy, MOSCOW | | ASSOCIATE SG13 | ASSOCIATE SG2 | REGINTORG |
| International Telecommunications Satellite Organization, WASHINGTON, DC | X | X | X | REGINTORG |
| International Telecommunications Users Group, WOERDEN | | X | X | REGINTORG |
| Internet Corporation for Assigned Names and Numbers (ICANN), Los Angels | | | X | REGINTORG |
| Internet Society, GENEVA | | X | X | REGINTORG |
| Internet Systems Consortium, Newmarket | | X | X | REGINTORG |
| ITU-APT Foundation of India (IAFI), NEW DELHI | X | X | X | REGINTORG |
| Mandat International, Geneva | | X | | REGINTORG |
| Mobile & Wireless Forum IVZW, Merelbeke | | | X | REGINTORG |
| MulteFire Alliance, FREMONT | | ASSOCIATE SG2 | | REGINTORG |
| NetHope Inc, FAIRFAX | | | X | REGINTORG |
| North American Broadcasters Association (NABA), TORONTO | X | | | REGINTORG |
| OISTE Foundation, Geneva | | | ASSOCIATE SG2 | REGINTORG |
| Open & Agile Smart Cities (OASC), Brussels | | X | | REGINTORG |
| Open Geospatial Consortium, WAYLAND | X | X | X | REGINTORG |
| Organisation Internationale de la Francophonie (OIF), Paris | X | X | X | REGINTORG |
| Pacific Islands Telecommunications Association, SUVA | X | X | X | REGINTORG |
| Personal Connected Health Alliance, CHICAGO | X | X | X | REGINTORG |
| Registro de Direcciones de Internet para América Latina y Caribe - LACNIC, Montevideo | | X | X | REGINTORG |
| Réseau International Des Femmes Expertes Du Numérique (RIFEN), ABIDJAN | | | X | REGINTORG |
| Réseaux IP Européens Network Coordination Centre (RIPE NCC), AMSTERDAM | | X | X | REGINTORG |
| SAMENA Telecommunications Council, DUBAI | | | X | REGINTORG |
| Scientific Committee on Frequency Allocations for Radio Astronomy and Space Science (IUCAF), CHARLOTTESVILLE | X | | | REGINTORG |
| Sintesio Foundation, KRANI | | | X | REGINTORG |
| Society of Motion Picture and Television Engineers, WHITE PLAINS | X | | | REGINTORG |
| Southern Africa Telecentre Networks, LUSAKA | X | X | X | REGINTORG |
| Southern African Development Community, GABORONE | X | X | X | REGINTORG |
| Square Kilometre Array Observatory, MACCLESFIELD | X | | | REGINTORG |
| Techfugees Foundation, London | | | X | REGINTORG |
| Telecentre.org Foundation, QUEZON CITY | | | X | REGINTORG |
| The Abdus Salam International Centre for Theoretical Physics, TRIESTE | | | X | REGINTORG |
| The Asia-Pacific Satellite Communications Council, KYUNGI-DO | X | | | REGINTORG |
| The European Organisation for the Safety of Air Navigation (EUROCONTROL), BRUXELLES | X | | | REGINTORG |
| Union Economique et Monétaire Ouest Africaine, OUAGADOUGOU | | X | X | REGINTORG |
| United Kingdom Telecommunications Academy (UKTA), BRACKLEY HATCH | | X | X | REGINTORG |
| URSI-International Union of Radio Science, GENT | X | X | X | REGINTORG |
| WebForce International Federation, NARBONNE | | | X | REGINTORG |
| West Africa Telecommunications Regulators Assembly, ABUJA | X | X | X | REGINTORG |
| Wireless World Research Forum, Zürich | X | X | X | REGINTORG |
| World Association of Community Radio Broadcasters, PARIS | X | | X | REGINTORG |
| World Broadcasting Unions - Technical Committee, TORONTO | X | | | REGINTORG |
| World Federation of Engineering Organization, Paris | | X | X | REGINTORG |
| World Wide Web Foundation, Washington, DC | | | X | REGINTORG |
| WorldDAB Forum, LONDON | X | | | REGINTORG |
| 142 International Organizations (ITU-R=74, ITU-T=75, ITU-D=101, any=136; Associates: ITU-R=2, ITU-T=3, ITU-D=2, any=6). |
