| Companies |
Electronics
- NTT Corporation
- Sony Corporation
- Hitachi Corporation
- Toshiba
- Mitsubishi Electric Business Systems, Ltd.
- Fuji Xerox Co.
- Fujitsu Ltd.
- Pioneer Electronic Corporation
- Sharp Japan
- TDK
- Texas Instruments Japan
- Victor Company of Japan, Ltd. (JVC)
- Yokogawa Electric Corporation
- Nintendo
Computer
- IBM Japan
- Canon Supercomputing S.I.
- NEC
- OKI
- Fujitsu
- Fuji Xerox
- Hucom
- ImagePartner
- Canopus' Home Page
- Apple Computer Japan (Japanese only)
- DEC Japan (Japanese only)
- Compaq K.K. (Japanese only)
- Sun Japan (Japanese only)
- Oracle Japan (Japanese only)
- Kodak Japan (Japanese only)
- JustSystem
- B.U.G. Home Page
- Hitachi Software Co.
- MetaSys
- Canon NEXTSTEP
- NTT Software
- Nexus Technology
- Personal Media
- Microsoft Japan (Japanese only)
- Lotus Japan (Japanese only)
- Borland Japan Online (Japanese only)
- SRA (Software Research Associates)
- PFU
- Pineapple Company
- Proside
- Softbank Corporation (Japanese only)
- Ascii Corporation (Japanese only)
- MacZone Japan (Japanese only)