| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Applied Communications Ltd | 01412999 | 12/06/1991 | Dissolved |
| Benstate Ltd | 01506615 | 25/10/1991 | Dissolved |
| Cap (Northern) Ltd | 01396950 | 25/10/1991 | Dissolved |
| Computer Analysts & Programmers (Scotland) Ltd | SC045892 | 25/10/1991 | Dissolved |
| Computer Program Products (Cpp Uk) Ltd | 00969382 | 25/10/1991 | Dissolved |
| Principia Systems Ltd | 01679219 | 25/10/1991 | Dissolved |
| Principia Testing Ltd | 01623631 | 25/10/1991 | Dissolved |
| Surface Engineering & Inspection Ltd | 01709188 | 29/07/1991 | Dissolved |
| Yard International Ltd | 01660787 | 25/10/1991 | Dissolved |
| Yarrow (Developments) Ltd | 01265106 | 12/06/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ACI WORLDWIDE (EMEA) LIMITED | 02310474 | 28/10/1991 | 02/01/1992 | Silver |
| ATOS IT SERVICES LIMITED | 01240677 | 14/05/1992 | 27/04/2001 | Amber |
| ATOS IT SERVICES UK LIMITED | 01245534 | 12/06/1992 | 12/06/1994 | Amber |
| ATOS ORIGIN (SEMA) PENSION TRUSTEES LIMITED | 04044489 | 01/02/2001 | 15/10/2002 | Dissolved |
| ATOS ORIGIN BARBADOS LIMITED | 02144824 | 12/06/1992 | 12/06/1994 | Dissolved |
| ATOS ORIGIN CS PENSION TRUSTEES LIMITED | 04044483 | 01/02/2001 | 15/10/2002 | Dissolved |
| Automatic Revenue Controls Ltd | 01451093 | 12/06/1991 | 07/06/1994 | Dissolved |
| BAE SYSTEMS (LAND AND SEA SYSTEMS) LIMITED | 02536912 | 03/09/1992 | 16/03/1995 | Silver |
| CONTINUITY SERVICES LIMITED | 02114993 | 20/01/1993 | 29/02/1996 | Dissolved |
| Computer Analysts & Programmers Ltd | 00723035 | 12/06/1991 | 12/06/1994 | Dissolved |
| KENDRICK COMPUTING PLC | 00180693 | 12/06/1991 | 07/06/1994 | Insolvent |
| PREMIERFIRST VEHICLE RENTAL LIMITED | 02779999 | 02/06/1994 | 30/01/1998 | Dissolved |
| PREMIERFIRST VEHICLE RENTAL PENSION SCHEME TRUSTEES LIMITED | 02897087 | 03/10/1994 | 19/01/1999 | Not Trading |
| Panther Systems Ltd | 01804753 | 31/12/1993 | 12/06/1994 | Dissolved |
| SEMA SYSTEMS LIMITED | 01417035 | 12/06/1992 | 12/06/1994 | Dissolved |
| STEPHEN HOWE SYSTEMS LIMITED | 01645702 | 12/06/1992 | 07/06/1994 | Dissolved |
| Sema Canada Ltd | 02767954 | 04/06/1993 | 07/06/1994 | Dissolved |
| Sema Outsourcing Plc | 02002981 | 12/06/1992 | 12/06/1994 | Dissolved |
| Semdorm No 3 Ltd | 01784610 | 01/12/1993 | 12/06/1994 | Dissolved |
| Semdorm No 4 Ltd | 00880136 | 12/06/1992 | 12/06/1994 | Dissolved |
| Threegrade Ltd | 01500313 | 12/06/1992 | 12/06/1994 | Dissolved |
| YARD LIMITED | 02597103 | 01/08/1991 | 07/06/1994 | Dissolved |
| YARROW LIMITED | 00121699 | 12/06/1992 | 12/06/1994 | Dissolved |
| Yard Software Systems Ltd | 01694837 | 18/10/1993 | 12/06/1994 | Dissolved |