- 1&1 Versatel GmbH
- 4iG Nyrt
- 50 Hertz
- 6d Technologies
- 6G World
- A. T. Kearney
- Aarav Solutions
- Ab Initio Software Limited
- Accenture
- Accolite Inc.
- ACG Research
- Acronym Solutions Inc.
- ADVANCED INFO SERVICE PLC. (AIS)
- Agerpix
- Aira Technologies Inc
- Airband Community Internet
- Airbus
- Alarm.com
- Alfa Mobile
- Aljeel aljadeed for Technology
- Allot
- Allot Ltd
- Almadar Aljadid
- Altice Labs, S.A
- Altice Portugal
- Altoo Measurement Science
- alvatross
- Amartus
- Amazon Web Services, Inc.
- Amdocs Management Limited
- America Movil
- Analysys Intenational
- Analysys Mason
- ANS Digital Transformation Limited
- Antel-Uruguay
- Anthropic
- Appledore Research Group
- Applied BSS
- Apptium
- ArctosLabs Scandinavia AB
- Arelion
- Aria Systems Inc.
- ARINT
- ARISE analytics
- Arriyadh Development Authority
- AsiaInfo Technologies (China), Inc.
- Aspire Technology
- AT&T Inc.
- atkrypto.io
- Aussie Broadband Limited
- Austrian Power Grid
- Autostrada del Brennero SpA
- avataa
- AvidThink LLC
- AVSystem
- AwareX, Inc.
- AXIATA DIGITAL LABS (Pvt) Ltd
- Axiata Group Berhad
- Azercell Telecom
- Azerconnect LLC
- Bain & Company, Inc.
- Balesia Technologies, Inc.
- Bankai Labs
- Bechtle
- Beijing Ultrapower Software Co., Ltd.
- being.tech
- Bell Canada
- Beyond Now GmbH
- Beyond ONE
- BH Telecom, Joint Stock Company, Sarajevo
- Bharti Airtel Ltd
- BICS
- Billogram
- Binom d.o.o.
- Bloomberg LP
- Bludigit
- Bluestone PIM
- BMC Software, Inc.
- Botswana Telecommunications Corporation
- Bouygues Telecom
- Bright Ideas Matter
- Brilansa
- Brillio
- British Embassy
- Broadcom Software
- Broadleaf Commerce
- Broadpeak
- BSR Associates
- BT Group plc
- Cable & Wireless Seychelles
- Calvi Business Software B.V.
- Cambridge Consultants
- CamGSM
- Canonical
- Capgemini
- CAREAR
- Case On IT SL (MedUX)
- caspera-lab
- CCgroup
- CCS Insight
- Celfocus
- Cellcard Cambodia
- Cerillion Technologies Limited
- Certifaction AG
- CETIN
- CGI Information Systems and Management Consultants Inc.
- China Academy of Information and Communications Technology(CAICT)
- China Mobile Communications Corporation
- China Telecommunications Corporation
- China Unicom
- Chunghwa Telecom Company LTD
- Ciena Corporation
- Cisco Systems
- CityFibre
- Clarity Global Pty Ltd
- Claro Argentina
- Claro Brasil
- Claro Chile
- Clear Blockchain Technologies Pte Ltd
- CloudBlue
- Cloudera Inc.
- Cloudsense
- CMC Networks
- CodiLime
- Cognizant Technology Solutions
- Colt Technology Services
- Comarch S.A.
- commercetools GmbH
- Compax Software Development GmbH
- Comtrade Serbia
- Comviva
- Concertia Technologies Inc
- Confidential Information - Do Not Distribute
- Confluent Europe
- Connective Insight Ltd
- Converge Information And Communications Technology Solutions, Inc.
- CORTEX
- Counterpoint Research
- COVALENSE DIGITAL SOLUTIONS LLC
- Cox Communications, Inc.
- CPaaS Acceleration Alliance
- CRC Media
- CRM.COM Software Ltd.
- Crossjoin Solutions Lda
- Crown Castle
- CSG Systems, Inc.
- Cyient
- Dansk Erhverv
- Danske Bank
- Data Centre Magazine
- DE-CIX
- Dell Technologies Inc.
- Deloitte
- Destiny N.V, Dstny
- Detecon International
- Deutsche Giganetz
- Deutsche Glasfaser Management GmbH
- Deutsche Telekom AG
- Developing Telecoms
- Deveo
- Devoteam
- Dialog Axiata PLC
- DiGi Telecommunications Sdn Bhd
- Digia Finland Oy
- Digicel Group
- DIGITAL GLOBAL SYSTEMS
- Digital Hub Denmark
- Digital Nasional Berhad
- Digital Realty
- DigitalRoute
- DNA Plc
- DOD
- DSA
- Ductus
- E-net
- E-Networks
- Earthlink Telecommunications
- Econet Wireless Zimbabwe
- eContact Services
- ECT LTD
- ECT Telecoms
- Edelweiss Service Consulting SàRL
- Edgio
- EE
- Effectus Research
- Effortel Technologies
- EITC (DU)
- Elewit Ventures
- Elisa Corporation
- Elisa Polystar
- Embassy of India, Copenhagen
- Endava
- Enghouse Networks Limited
- Entel Chile
- Enxoo Sp. z o.o.
- Epam Systems Ltd
- Epikonia Group
- Ericsson
- Ernst & Young
- ESRI
- Ethio Telecom
- Etisalat Egypt
- Etisalat Telecommunictions Corporation
- Etisalat UAE
- ETIYA
- ETP
- Euristiq
- Eutelsat
- Evamp & Saanga
- Eventually
- Evergent Technologies, Inc.
- Eviden
- Exos Systems Limited
- Externel
- EZECOM Co., Ltd.
- Factor Nova Oy
- Faroese Telecom
- FASTWEB
- Fibia
- Fibrasil infraestrutura e fibra otica S.A.
- FICO
- Financial Ombudsman
- Finn Frogne A/S
- Flytxt
- FNT GmbH
- FP Zero
- Frost & Sullivan
- Future Connections Holding B.V.
- FUTURING
- Gartner
- GBI
- GCI Communication Corp
- GDi CMT Global LLC
- GE Smallworld
- GIP Exyr GmbH
- Gitlab
- Gleamforce
- Glide
- Global Cloud Xchange
- Global Data
- Global Wavenet Pte Ltd
- GlobalConnect A/S
- GlobalLogic
- Globe Telecom Inc.
- Globetom
- Globys, Inc.
- Gomibo Group
- Google Cloud
- GreySkies Inc
- Grupo MASMOVIL
- GSM Association
- Haifa Design
- Halleyx Inc.
- Hansen Technologies
- HAWE Telekom Sp. z o. o.
- Hayat Communications Co.
- HCLTech
- Helmes
- Hestia Solutions OU
- Hewlett Packard Enterprise
- Hi3G Denmark ApS
- Hinduja Global Solutions
- Hong Kong Telecommunications (HKT) Limited
- Hrvatski Telekom d.d.
- Huawei Technologies Co. Ltd
- Humaitrix
- Humans Not Robots
- Hutchison 3G Austria GmbH
- Hutchison 3G UK
- Hutchison Global Communications Ltd
- HW
- i2i Systems
- IBM Corporation
- iCONX Solutions
- IDC
- Idea Helix Inc.
- IDEMIA
- IFS
- IGMAKO
- Ikue Limited
- Incedo Inc.
- Inceptum d.o.o. za usluge
- Incognito Software Systems
- Indosat Ooredoo Hutchison
- Inetum
- Infobip
- InfoCom Research, Inc.
- Informa Telecoms & Media
- Infosim GmbH & Co. KG
- Infosys
- Infovista
- Infront Consulting
- Inmanta
- Innova Solutions Inc
- Innovile Technology S.L.
- Integrated Telecom Company
- Intel Corporation
- Intellyx
- Intersec
- interworks.cloud
- Intracom Telecom
- Invenio Growth Consulting AB
- ipko
- IPLAN
- ipoque GmbH
- IPR
- iQrypto
- Iquall Networks Inc
- Iricent Ltd
- Iridium Communications Inc.
- Italtel S.p.A
- ITgma
- Itochu Techno Solutions Corporation
- Jazz Pakistan
- Jio
- Jio Platforms Limited
- JT (Jersey) Ltd
- Jusi
- Kadium Publishing
- KDDI Corporation
- KDDI Research, Inc.
- Kenmei
- Keyrus
- Keysight Technologies Sweden AB
- KILAT WAHANA JENGGALA
- Kloudville Inc.
- Knut Johannessen
- KPMG
- KPMG International
- KPN International
- Kraken Technologies Limited
- Kratos
- L&T Technology Services Limited
- LabLabee
- LatenceTech
- LATVIJAS MOBILAIS TELEFONS SIA
- LCC Algeria E.U.R.L.
- LEDHouse LTD
- Lenora
- Lenovo
- Levio Consulting Inc.
- Lewis Insight
- Liberty Global Services B.V.
- Liberty Latin America
- Libyana for Mobile Phones
- Lifecycle Software
- Light Reading
- LIGHTSTORM TELECOM CONNECTIVITY PRIVATE LIMITED
- Link Mobility Group
- Lintas Teknologi Indonesia
- Litemotions
- Locatium.AI
- Lotus Microsystems ApS
- LotusFlare
- LPTIC
- Lumen
- Lumine Group
- Luxoft
- Lyse Tele AS
- M1 Limited
- MAC
- Magenta Telekom
- Magyar Telekom Plc.
- Makman Technology Consulting
- Manchon & Company
- Marand, software ltd
- Market Mettle
- Match-Maker Ventures
- MATRIXX Software
- Mauritius Telecom Ltd
- Mavenir Systems
- MBR Partners
- McKinsey & Company, Inc
- MDS Global Ltd
- MEF Forum
- MEF.DEV
- Meta
- Mewada
- MicroNova AG
- Microsoft Corporation
- Millicom International Cellular S.A.
- Mimik
- MIMOPT Technology
- Ministry of Foreign Affairs of Denmark
- Minsait Brasil LTDA
- Mitigant
- MLK Bespoke
- MLnetworks
- Mobielwerkt
- Mobile Magazine
- Mobile Telecom Operators Association of Turkey
- Mobileum Inc
- Mobitel (Pvt) Ltd
- MOI Global
- Moloco
- MongoDB Inc
- Moss UK
- mtel Banja Luka
- MTN Nigeria
- MTN South Africa
- MTN Uganda
- Multitel - Serviços de telecomunicações Lda
- Multiverse
- Mvine Limited
- MYCOM OSI
- Nabstract Technologies Private Limited
- Nagarro Software Pvt Ltd
- Napatech
- NBNCo Ltd
- NC Systems GmbH
- Nearby Computing
- NEC Corporation
- Neoteric
- Nespon
- Net AI Tech Ltd
- Netadmin System i Sverige AB
- NetApp
- NETCOMPANY-INTRASOFT S.A.
- Netcracker Technology
- Neterra EOOD
- Netradar
- Neuner Mobile
- Neurocom SA
- Nexonera
- NGMN Alliance
- Ni2
- Noble Events
- Nokia
- Nordic eSim
- Norlys
- Norwood Systems
- NOS Technology
- Novo Nordisk
- NTS Retail KG
- NTT COMWARE CORPORATION
- NTT DATA
- NTT Group
- Nuuday
- Nvidia
- Ocient
- Odido Netherlands B.V.
- OK Middle East Productions
- OMANTEL
- Omdia
- Omnesse
- One NZ Group Ltd.
- One37 ID
- Oneweb
- Ooredoo Group
- Open Labs
- OPT/NET
- Optare Solutions
- Optiva Inc.
- Oracle Corporation
- Orange
- Orange Caraibe
- Orange Egypt
- Orange Polska
- Orange Romania
- ORS Comm GmbH & Co KG
- OryxGateway FZ LLC
- OSSEra
- OVOO
- P4 SP Z O O
- PAiC BD
- Palladin Tech
- Panamax Inc.
- Partner Zen
- PCCW Global
- Pegasystems, Inc.
- Persistent Systems Ltd
- Philippine Long Distance Telephone Company (PLDT)
- PI WORKS
- PiA Bilişim Hizmetleri A.Ş.
- PlatformX Communications (PXC)
- Platinion GmbH
- POCA Group
- Polkomtel S.A. (PLUS)
- Post Castle Media
- Post Group
- Praxedo
- Pretius
- Prodapt
- Prodapt North America, Inc
- Productboard
- Promentum Equity Partners
- ProtonMail
- Proximus SA
- PT LINK NET TBK
- PT Telekomunikasi Selular
- PT Tricada Intronik
- PT XL Axiata Tbk.
- PT. Mahardika Teknotama Integrasi
- PTC
- PwC
- Pygmalios
- Qeema Consultancy and Technology Service
- QINSHIFT AB
- qool
- Qualcomm, Inc.
- Quantexa
- Questex Media Group
- Qvantel Oy
- RADCOM
- Rakuten Mobile, Inc.
- Rakuten Symphony
- RCR Wireless News
- Readiness IT Systems Integration, S.A.
- Reailize, a B-Yond company
- Realworld Systems
- Recon Analytics
- Red Hat, Inc.
- Reply
- RESI
- Resolve Systems
- Riva Media
- Rivada Space Networks
- Romasch Analytics
- Royal KPN N. V.
- RP International
- Rsystem
- S4-Digital
- Safaricom PLC
- Sales Explorers
- Salesforce
- Sand Technologies
- SAP
- SAS Institute
- Saudi Telecom Company
- SBB Telecom
- Scale AI Inc.
- SCS
- Senza Fili
- ServiceNow, Inc.
- SES Astra S.A.
- Shabodi Corp
- Shanghai Fudata Technology Co.Ltd
- SI-TECH Information Technology Ltd.
- SigScale
- Singapore Telecommunications Limited
- SingTel Optus
- SK Telecom Co., Ltd.
- Skanska Sverige
- Sky Limited
- Smyle
- Snaplogic, Inc.
- Sneeyeg
- Snowflake Inc.
- Sodhanai.com
- Sofrecom Tunisie
- Soft-ex
- SoftBank Corp
- Software Development Hub
- Software Mind
- solvatio AG
- Sonorys Technology
- Spark New Zealand Limited
- Sparklehaze
- Spinnaker Support
- Sri Lanka Telecom PLC
- Staex
- Standard & Poor's Financial Services LLC.
- Statista
- STC Bahrain
- Stechs
- Stiftelsen Flowminder
- STL Partners
- Strand Consult
- Striim
- Subex Inc
- Summa Networks
- Summer Creative
- Sunrise Communications AG
- Sunset Technologies
- Suntech S.A.
- SuperMicro Computer, Inc.
- Sutherland Global Services
- Sweepr
- Swisscom (Schweiz) AG
- swissgrid
- Symphonica
- syntheticAIdata
- T-Mobile Czech & Slovak Telekom, a.s.
- T-Mobile Poland SA
- T-Systems International Services GmbH
- Tallence AG
- Tata Communications
- Tata Consultancy Services
- Tata Elxsi Ltd
- TD Synnex
- TDC NET A/S
- Tech Mahindra Limited
- TechBBQ
- TechComms
- TechNarts (Nart Bili?im)
- TechNEconomY DK
- Tecnotree
- Telavox
- Telco Republic
- TelcoTitans
- Tele2 Global
- Telecom Argentina, S.A.
- Telecom Egypt
- Telecom Infra Project
- Telecom Italia SpA
- Telecom Italia Sparkle S.p.A.
- Telecom Personal (Paraguay)
- Telecom Review Group
- TelecomTV
- TELEFONICA
- Telefonica Germany GmbH & Co. OHG
- Telefonica I + D
- Telefonica Moviles Argentina
- Telefonica Moviles Colombia S.A.
- Telekom Austria AG
- Telekom Slovenije
- Telekom Srbija
- Telemach d.o.o.
- Telenet NV
- Telenity
- Telenor ASA
- Telenor Denmark
- Telenor Pakistan
- Telenor Sverige
- Telesat LEO Inc.
- TeleSemana.com
- Telgea
- Telia Company
- Telia Eesti AS
- Telia Lithuania
- Telia Norge AS
- Telin (a Telkom Company)
- Telkom SA
- Telstra Corporation
- TELUS
- Telus International
- TerreStar Solutions Inc. DBA Strigo
- The Boston Consulting Group
- The Data Company
- The Futurum Group
- The Institute of Electrical and Electronics Engineers Incorporated
- The Mobile Network
- The Network Media Group
- The Value Engineers
- Thirdera
- TierOne, Inc.
- TietoEVRY
- TM Technology Services Sdn Bhd
- Torry Harris Integration Solutions
- Totogi
- Toyota Motor Corporation
- TPG Telecom Limited
- Tr3dent
- TRACY
- Trafikverket
- Transform & Trust Advisory Ltd
- Transforma Insights
- triPica
- Triple-Innovations Ltd
- Tritronik
- TT-Netværket
- Tunisie Telecom
- Tupl Inc
- Turkcell Iletisim Hiz AS.
- Turkiye Ministry of Trade
- Turknet
- UBiqube
- Ultel
- Unacast
- Unified National Networks Sdn Bhd
- Unitel Group
- Universita degli Studi di Milano
- Université Grenoble Alpes
- University of York
- US Cellular Corporation
- Vanrise
- Vaposun
- vcita
- Vendelux
- Verizon Communications
- vHive
- VIAVI Solutions
- Vietnam Posts and Telecommunications Group (VNPT)
- Viettel Group
- Virgin Media
- Virgin Media ireland
- Virgin Media O2
- Virtusa Corporation
- Vitrifi Limited
- Viva Communications
- VMware by Broadcom
- Vodafone GmbH
- Vodafone Group
- Vodafone Idea Limited
- Vodafone Oman
- Vodafone Romania SA
- Vodafone UK Ltd
- VodafoneZiggo
- VOIPFUTURE
- Volt Active Data
- Vonage
- VR Racing Denmark
- Waoo
- Wavelo
- Waylay
- We Love Micro
- Whale Cloud Technology Co., Ltd
- Wind River
- Wipro Technologies
- WKM Global
- Worldline
- XACRIA s.r.l
- XL8 Inc.
- Yaana
- Yanite Technology
- Yettel.
- Yousee
- YTL Communication Sdn Bhd
- Zain Group - Mobile Telecommunications Company K.S.C.P
- Zain Iraq
- Zayo Group, LLC
- Zinkworks
- ZIRA Ltd.
- ZTE Corporation
*Registered companies as of 17 June 2024