| Aga Navigation Aid |
|
A T & E (USA) |
| Atlantic Richfield |
| Arco Solar (USA) |
|
Ayrton & Partners |
| Berger |
| BDH |
|
Burroughs Corporation (USA) |
| Corning Glass Works (USA) |
| Cuprinol |
|
ARPA (USA) |
| GEC |
| Gori Wood Preservation (Denmark) |
|
G V Planer |
| Health & Safety Executive (UK) |
| Hempels Marine Paints (Denmark) |
|
Home Office (UK, Police) |
| Innovare |
| Lohja Corporation (Finland) |
|
Marconi |
| Ministry of Defence (UK) |
| MOACO (Switzerland) |
|
Motorola |
| Nair Chemicals |
| Oil & Tar Trading |
|
Plessey |
| Raytheon Corporation (USA) |
| Rogers Corporation (USA) |
|
Sinclair |
| Solar Energy Research Institute (USA) |
| Tektronix (USA) |
|
Thomas Electronic (USA) |
| Thorn-EMI |
| Timex Corporation (USA) |
|
US Army (Electronics Command) |
| Vaughan Mason |