| ACCESS Co., Ltd. |
| Akamai Technologies GK |
| Asahi Broadcasting Corporation |
| Asial Corporation |
| CATV Tokushima Co.,Inc. |
| Cisco Systems G.K. |
| COMMUNITY NETWORK CENTER INCORPORATED. |
| MICWARE NAVIGATIONS CO.,LTD. |
| Digiasa Inc. |
| DigiOn, Inc. |
| Dolby Japan K.K. |
| Espial Group Inc. |
| ESWIN Japan Inc. |
| NTV Wands Inc. |
| FUJIMIC,Inc. |
| Fujisoft Incorporated |
| FUNAI ELECTRIC CO., LTD. |
| Furukawa Electric Co., Ltd. |
| Hakuhodo DY Media Partners Inc. |
| Harmonic Japan G.K. |
| Hokkaido Television Broadcasting Co., Ltd. |
| HokurikuDenwaKouji Co.,Ltd. |
| Humax Japan Co., Ltd. |
| INFOCITY, Inc. |
| Internet Initiative Japan Inc. |
| I-O DATA DEVICE, Inc. |
| Itochu Techno-Solutions Corporation |
| Japan Cable and Telecommunication Association |
| Japan Cable Laboratories |
| Japan Digital Serve Corporation |
| JapanCableCast inc. |
| JCOM Co., Ltd. |
| J-Stream Inc. |
| KANSAI TELECASTING CORPORATION |
| Kunai, Inc. |
| LG Japan Lab Inc. |
| Mainichi Broadcasting System,Inc. |
| MEDIACAST CO.,LTD |
| Miharu Communications Inc |
| Mitsubishi Research Institute, Inc. |
| MITSUMI ELECTRIC CO.,LTD. |
| Nagoya Broadcasting Network Co.,Ltd. |
| NEC Corporation |
| Newmedia co.,Ltd. |
| NHK Foundation |
| NHK ENTERPRISES, INC. |
| NHK Technologies,Inc. |
| NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION |
| NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION |
| NTT Communications Corporation |
| NTT TechnoCross Corporation |
| OKI Networks Co., Ltd. |
| OPTAGE Inc. |
| Oriental Consultants Global Co., Ltd |
| Panasonic Connect Co., Ltd. |
| PLAY, inc |
| SAMSUNG R&D INSTITUTE JAPAN CO.LTD. |
| SKY Perfect JSAT Corporation |
| GreenBee, Inc. |
| Socionext Inc. |
| Sumitomo Electric Industries, Ltd. |
| TBS GLOWDIA, Inc. |
| TELEVISION OSAKA, INC. |
| TOKYO METROPOLITAN TELEVISION BROADCASTING |
| Toshiba Infrastructure Systems & Solutions Corporation |
| TVS REGZA Corporation |
| Upstream Co., Ltd. |
| Video Research Ltd. |
| WebStream Corporation |
| World Hi-Vision Channel, Inc. |
| WOWOW Inc. |
| Yomiuri telecasting corp. |
