| ECC Publications | No tapes | No tapes | No books | No hardware |
| East London Robotics | No tapes | No tapes | No books | Hardware |
| ERE Informatique | Tapes | No tapes | No books | No hardware |
| Educare | No tapes | No tapes | Books | No hardware |
| Eebee Computor Wares | No tapes | No tapes | No books | No hardware |
| Electric Pencil Company | Tapes | No tapes | No books | No hardware |
| Emjay | No tapes | No tapes | No books | No hardware |
| Eprom Services | No tapes | No tapes | No books | No hardware |
| Eyrolles | No tapes | No tapes | Books | No hardware |