Companies
- AARDVARK
- AB Engineering
- Advanced Energy Systems Software Group
- Audiograph Co.
- B. A. Mullkoff
- Barry Carter
- Business Management Specialists
- CAI Instruments, Inc.
- Computer WARE-House Co.
- Computronics
- CRC Software
- D-RAM Products
- Daydesign
- Event Horizon Software
- Foundation Systems
- Hal-Tronix, Inc.
- Hunter Electronics
- Huron Communications
- Huron Valley Research, Inc.
- INSIGHT
- J. Schwitalla
- K-2 Electronics
- Kamrec Systems
- MDM Enterprises
- Nanosecond Computer Services
- Okoloko Engineering Software
- Original Software
- Phoenix Engineering Systems
- RAMEX International
- Robert C. Moler
- S.B.C. Software
- Santa Fe Industries
- Sinclair Supply Shack
- Spectracomp
- Stephen Zachev
- Steve Dinstbier
- Sting Graphics
- Sturdivant Laboratories
- Tree Systems of Grand Rapids
- Turner, Elcy & Com.
- Walter Grundy
- WIDJUP Company
- Wizard Works, The
- Yagsee Publications
- ZOPF Industries