| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ATKINSRÉALIS RAIL & TRANSIT LIMITED | 03062722 | 24/05/1995 | 22/03/1996 | Silver |
| ATOC LIMITED | 03069033 | 12/06/1995 | 30/10/1996 | One Red Flag |
| BOMBARDIER TRANSPORTATION (SIGNAL) UK LTD | 03062720 | 24/05/1995 | 04/01/1996 | Dissolved |
| INGLEBY (805) LIMITED | 03062721 | 25/05/1995 | 10/11/1995 | Dissolved |
| NETWORK TRAIN ENGINEERING SERVICES LIMITED | 03062723 | 24/05/1995 | 01/04/1996 | Dissolved |
| OCCUPATIONAL HEALTH CARE LIMITED | 03062724 | 24/05/1995 | 30/11/1995 | Bronze |
| RAIL SETTLEMENT PLAN LIMITED | 03069042 | 12/06/1995 | 16/01/1996 | Bronze |
| RAIL STAFF TRAVEL LIMITED | 03069020 | 12/06/1995 | 30/10/1996 | Bronze |
| RAILWAY DOCUMENTATION AND DRAWING SERVICES LIMITED | 03128142 | 02/02/1996 | 02/02/1996 | Gold |
| RIQC LIMITED | 03062726 | 25/05/1995 | 10/11/1995 | Bronze |
| Serco Railtest Ltd | 03114741 | 02/02/1996 | 02/02/1996 | Dissolved |
| Signalling Control U.K. Ltd | 03062719 | 24/05/1995 | 24/05/1996 | Dissolved |
| The Engineering Link Ltd | 03062725 | 24/05/1995 | 14/03/1996 | Dissolved |