| Harris and Lockyer Associates | No tapes | No tapes | No books | No hardware |
| Hartland Software | No tapes | No tapes | No books | No hardware |
| Haven Hardware | No tapes | No tapes | No books | No hardware |
| Heltaskelta | No tapes | No tapes | No books | No hardware |
| Hestacrest | No tapes | No tapes | No books | No hardware |
| Hewson Consultants | Tapes | No tapes | Books | No hardware |
| Hilderbay | Tapes | No tapes | No books | No hardware |
| Holdco | No tapes | No tapes | No books | No hardware |