- Afilias Limited
- America Online, Inc. (AOL)
- ANEC
- Argo Interactive Ltd
- AT&T
- Centre for Development of Advanced Computing (CDAC)
- Drutt Corporation
- ETRI
- elmundo.es
- ERICSSON
- France Telecom
- Fundación CTIC
- Fundación ONCE
- Go Daddy.com
- Google, Inc.
- Indus Net Technologies
- Infraware
- Institute of Informatics & Telecommunications (IIT),
NCSR
- IWA-HWG
- Internet Content Rating Association
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- Mobileaware, Ltd.
- Microsoft Corporation
- mTLD Top Level Domain Limited
- NeoMtel
- Nokia
- NTT DoCoMo
- Openwave Systems Inc.
- Opera Software
- Royal National Institute for the Blind (RNIB)
- Segala
- Sevenval AG
- SK Telecom
- T-Online International AG
- Telecom Italia SpA
- Telefónica de España, SAU
- The Boeing Company
- TIM Italia SpA
- University of Helsinki
- Vodafone
- Volantis Systems Ltd
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