| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Project & Construction Management Ltd | 02532349 | 16/08/1991 | Dissolved |
| Rcw Services Ltd | 04372472 | 12/02/2002 | Dissolved |
| Rees Williams & Associates Ltd | 02358007 | 10/03/1991 | Dissolved |
| Rees Williams & Associates Ltd | 02358007 | 10/03/1991 | Dissolved |
| Sterling Program Management Ltd | 02726997 | 29/06/1992 | Dissolved |
| Telecom Project Management Ltd | 02661377 | 08/11/1991 | Dissolved |
| WILROD LTD | 07316682 | 15/07/2010 | Dissolved |
| WYKOR INTERNATIONAL LIMITED | 02683901 | 09/12/1993 | Insolvent |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| MISTRAS TEKRA LIMITED | 05845702 | 11/01/2011 | 01/05/2012 | Not Trading |
| STERLING MANAGEMENT LIMITED | 02451813 | 12/12/1991 | 04/04/1997 | Not Trading |
| STERLING SOFTWARE SOLUTIONS LIMITED | 02699767 | 24/03/1992 | 04/04/1997 | Dissolved |
| WYKOR INTERNATIONAL LIMITED | 02683901 | 20/07/1993 | 01/09/1993 | Insolvent |