| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Principia Testing Ltd | 01623631 | 12/06/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ATOS ORIGIN BARBADOS LIMITED | 02144824 | 12/06/1992 | 28/01/1994 | Dissolved |
| Benstate Ltd | 01506615 | 12/06/1991 | 25/10/1991 | Dissolved |
| Principia Systems Ltd | 01679219 | 12/06/1991 | 25/10/1991 | Dissolved |
| THE INSTITUTION OF ENGINEERS IN SCOTLAND | SC000358 | 31/07/1989 | 30/09/1992 | Amber |
| Yard International Ltd | 01660787 | 12/06/1991 | 25/10/1991 | Dissolved |
| Yard Software Systems Ltd | 01694837 | 12/06/1992 | 18/10/1993 | Dissolved |