| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Commedica Ltd | 03722626 | 17/05/2005 | Dissolved |
| OYSTER CONSULTING LIMITED | 02880760 | 15/12/1993 | Gold |
| OYSTER PORTFOLIO LIMITED | 06008224 | 23/11/2006 | Amber |
| STEP BY STEP PARTNERSHIP LTD | 02431825 | 28/04/2010 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ATOS IT SERVICES UK LIMITED | 01245534 | 12/06/1992 | 01/01/1994 | Amber |
| Computer Analysts & Programmers Ltd | 00723035 | 12/06/1991 | 01/01/1994 | Dissolved |
| Parc Technologies Ltd | 03478028 | 17/09/2002 | 06/08/2004 | Dissolved |
| SEMA CONSULTING LIMITED | 00949745 | 13/04/1992 | 01/01/1994 | Dissolved |
| SEMA SYSTEMS LIMITED | 01417035 | 12/06/1992 | 01/01/1994 | Dissolved |
| SPRUCEMERGE PROPERTY MANAGEMENT LIMITED | 02618358 | 28/04/2016 | 04/12/2019 | Gold |
| Semdorm No 3 Ltd | 01784610 | 12/06/1992 | 01/01/1994 | Dissolved |
| TECHUK LTD | 01200318 | 09/11/1991 | 12/01/1994 | Silver |