Contents:
- Teradyne Inc
- Terminal Display Systems
- Tesdata Ltd
- Texas Instrument
- Thorn Business Computers Ltd
- 3M United Kingdom Ltd
- Toltec
- Total Input Ltd
- Tradecom International
- Transdata Ltd
- Transtel Communications Ltd
- Trend Communications Ltd
- Trio Laboratories Ltd
- Trivector Systems
- TRW Computers Ltd
- UCC Computer Instrumentation
- UK Electrautom
- Ultra Electronics Ltd
- Ultronic
- Underwood Corporation
- Unicom
- Unidata
- Unilever Ltd
- Unique Data Products Ltd
- Unit Automation
- United Electric Controls