| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ABACUS E W CONSULTANCY LTD | 06181832 | 14/05/2010 | Dissolved |
| ADVANCED GEOSPATIAL SOLUTIONS LIMITED | 04124858 | 17/12/2012 | Dissolved |
| Alvis Trading Ltd | 00540322 | 12/05/2000 | Dissolved |
| BECKINGTON CASTLE LTD | 02422459 | 09/02/2009 | Bronze |
| CHESS DYNAMICS LIMITED | 03891212 | 12/12/2018 | Amber |
| CHESS TECHNOLOGIES LIMITED | 06539922 | 12/12/2018 | Amber |
| COHORT PLC | 05684823 | 09/05/2006 | Gold |
| Fistace Ltd | SC025972 | 12/05/2000 | Dissolved |
| J R M SOFTWARE LIMITED | 01405085 | 24/06/2009 | Dissolved |
| JS RESIDUAL LTD | 03753462 | 30/09/2014 | Not Trading |
| MARLBOROUGH COMMUNICATIONS (HOLDINGS) LIMITED | 07739219 | 08/07/2014 | Silver |
| MARLBOROUGH COMMUNICATIONS LIMITED | 01507639 | 08/07/2014 | Amber |
| MASS CONSULTANTS LIMITED | 01705804 | 01/08/2006 | Silver |
| MASS LIMITED | 05863964 | 01/08/2006 | Gold |
| Mapping Investments Ltd | 06347627 | 10/09/2007 | Dissolved |
| RESIDUE DETECTION LIMITED | 06213575 | 24/06/2009 | Dissolved |
| SEA (ADVANCED PRODUCTS) LTD | 03686473 | 24/06/2009 | Dissolved |
| SEA (GROUP) LTD. | 02430846 | 26/10/2007 | Bronze |
| SUBMETRIX LTD | 04259476 | 24/06/2009 | Dissolved |
| SYSTEMS CONSULTANTS SERVICES LIMITED | 02707469 | 25/04/2006 | Insolvent |
| SYSTEMS ENGINEERING & ASSESSMENT LTD | 02302168 | 09/02/2009 | Silver |
| VISION4CE LIMITED | 05958012 | 12/12/2018 | Amber |
| WALTHER ASSOCIATES LIMITED | 05481062 | 14/06/2005 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BAE SYSTEMS LAND SYSTEMS (LOGISTICS) LIMITED | 00835608 | 12/05/2000 | 06/04/2005 | Dissolved |
| COHORT PLC | 05684823 | 27/04/2006 | 01/10/2020 | Gold |