- Cimx Corporation.
- DSI, Inc.
- Fujitsu Limited
- Green IT Promotion Council.
- IPv6 Promotion Council.
- Japan Agiletech Co., Ltd.
- Keio University.
- LONMARK JAPAN
- Mitsubishi Research Institute,Inc.
- NEC Corporation
- NTT FACILITIES, INC
- Panasonic Electric Works Co., Ltd.
- The Institute of Electrical Installation Engineers of Japan
- The University of Tokyo
- TOSHIBA CORPORATION
- Ubiteq Inc.
- WIDE Project.
- Yamatake Corporation
- Yokogawa Electric Corporation
(Alphabetical order)
- Aichi Tokei Denki Co.,Ltd
- Asahi Kasei Microdevices Corporation
- Cimx Corporation.
- Cisco Systems, Inc
- Citrix Systems Japan K.K.
- Daikin Industries, Ltd.
- DSI, Inc.
- Fujitsu Limited
- Fuji Xerox Co., Ltd.
- Hitachi, Ltd.
- IBM Japan, Ltd.
- ITOCHU Corporation
- Johnson Controls, Inc.
- Kajima Corporation
- Kantokowa Co., Ltd.
- KOKUYO Co.,Ltd
- LAC Holdings Inc.
- Microsoft Corporation.
- Mitsubishi Corporation
- Mitsubishi Heavy Industries, Ltd.
- Mitsubishi Research Institute,Inc.
- Mitsui Fudosan Co., Ltd.
- MITSUI KNOWLEDGE INDUSTRY CO., LTD.
- NEC Corporation
- NIPPON STEEL ENGINEERING CO., LTD.
- NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- NTT COMWARE CORPORATION
- NTT FACILITIES, INC
- OPTiM Corporation
- ORIX Corporation
- OTSUKA CORPORATION
- Panasonic Corporation
- Panasonic Electric Works Co., Ltd.
- Q&A Corporation
- Ricoh Company, Ltd.
- Sanki Engineering Co., Ltd.
- Schneider Electric Group Japan
- SEIKO Precision Inc.
- SHINRYO CORPORATION
- SOHGO SECURITY SERVICES CO.,LTD.
- Takenaka Corporation
- TOSHIBA CORPORATION
- TOYO DENKI SEIZO K.K.
- Ubiteq, Inc.
- VeriSign Japan K.K.
- Yamatake Corporation
(Alphabetical order)
- Chularonkorn University (Thailland)
- Green IT Promotion Council.
- IPv6 Promotion Council.
- Keio University.
- LONMARK JAPAN
- Nagoya University
- Nara Institute of Science and Technology
- Niigata University
- OKAYAMA IPv6 CONSORTIUM.
- Shizuoka University.
- SRM University (India)
- The Institute of Electrical Engineers of Japan
- The Institute of Electrical Installation Engineers of Japan
- The University of Tokyo
- Tokyo Metropolitan Research Institute for Environmental Protection
- Tokyo Metropolitan University
- WIDE Project.
- Yamaguchi University
(Alphabetical order)
