| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| B C INFORMATION LIMITED | 07859164 | 30/04/2012 | Bronze |
| Causeway Professional Services Ltd | 02916378 | 01/03/2006 | Dissolved |
| Cbc Data Ltd | 04114274 | 01/03/2006 | Dissolved |
| Cornix Ltd | 03579476 | 01/03/2006 | Dissolved |
| Kestrel Estimating Ltd | 02818271 | 01/03/2006 | Dissolved |
| Keystone House Services Ltd | 03781693 | 26/03/2002 | Dissolved |
| LIFT-IT UK LIMITED | 09279874 | 24/10/2014 | Gold |
| Siteman Ltd | 03022851 | 01/03/2006 | Dissolved |
| Techsonix Holdings Ltd | 03362461 | 01/03/2006 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BIDWORK CONSTRUCTION SOFTWARE LTD | 12134012 | 01/01/2022 | 23/01/2024 | Gold |
| BR NETWORK LIMITED | 03892735 | 01/03/2006 | 31/10/2007 | Amber |
| Boundary Software Ltd | 02057821 | 01/06/1998 | 01/06/2006 | Dissolved |
| CAUSEWAY TECHNOLOGIES LIMITED | 03921897 | 01/03/2006 | 31/10/2007 | Silver |
| Causeway Estimating Ltd | 02667182 | 01/03/2006 | 02/06/2006 | Dissolved |
| Causeway Management Services Ltd | 03901983 | 01/03/2006 | 02/06/2006 | Dissolved |
| Causeway Management Services Ltd | 03901983 | 01/03/2006 | 02/06/2006 | Dissolved |
| Causeway Wessex Software Ltd | 00908514 | 01/03/2006 | 02/06/2006 | Dissolved |
| Colman House Services Ltd | 03915801 | 01/03/2006 | 02/06/2006 | Dissolved |
| Fcg Computer Systems Ltd | 02609201 | 09/05/1992 | 08/09/1994 | Dissolved |
| Fcg Services Ltd | 02435360 | 31/12/1991 | 08/09/1994 | Dissolved |
| Maintech Ltd | 02568757 | 14/12/1991 | 01/05/1998 | Dissolved |
| REDSKY IT (HEMEL) LIMITED | 01223977 | 31/12/1991 | 08/09/1994 | Bronze |
| Specnet Interactive Ltd | 03750497 | 26/03/2002 | 01/10/2002 | Dissolved |
| TRAINUS LIMITED | 02683851 | 01/03/1992 | 01/06/1998 | Dissolved |