| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Aspect Assessment Ltd | 03435415 | 15/08/2003 | Dissolved |
| Broomco (1750) Ltd | 03693521 | 23/04/2003 | Dissolved |
| Consignit Ltd | 03806278 | 02/06/2009 | Dissolved |
| Cygnite Ltd | 04197701 | 21/12/2004 | Dissolved |
| D P Consulting Services Ltd | 03403019 | 23/04/2003 | Dissolved |
| Gresham Bell Ltd | 01885489 | 08/03/2004 | Dissolved |
| High Integrity Systems Ltd | 03066530 | 23/04/2003 | Dissolved |
| Synectics Ltd | 01817988 | 10/02/2009 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALTRAN TECHNOLOGIES UK LIMITED | 03297869 | 23/04/2003 | 23/12/2011 | Dissolved |
| ALTRAN UK HOLDING LIMITED | 03066512 | 17/02/2009 | 20/02/2012 | Gold |
| ALTRAN UK LIMITED | 03302507 | 15/08/2003 | 21/12/2004 | Silver |
| Altran Critical Systems Ltd | 03333570 | 15/08/2003 | 21/12/2004 | Dissolved |
| YSIDRO LIMITED | 01578389 | 23/04/2003 | 24/06/2004 | Dissolved |