| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ROCKET ASSOCIATES UK LIMITED | 04751725 | 02/05/2003 | Silver |
| ROCKET ASSOCIATES UK LIMITED | 04751725 | 02/05/2003 | Silver |
| W.W.WINTER LIMITED | 00416393 | 11/06/1992 | Bronze |
| W.W.WINTER LIMITED | 00416393 | 25/09/2016 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Crispin Wride Architectural Design Studio Ltd | 02193922 | 01/02/1995 | 30/06/1999 | Dissolved |
| GIBB HOLDINGS LTD | 02387714 | 01/02/1995 | 30/06/1999 | Dissolved |
| GIBB LTD | 03281002 | 26/11/1996 | 30/06/1999 | Dissolved |
| GIBB OVERSEAS LIMITED | 02005717 | 01/02/1995 | 30/06/1999 | Dissolved |
| Gibb Petermuller & Partners (Europe) Ltd | 02387645 | 01/02/1995 | 30/06/1999 | Dissolved |
| Gibb Petermuller & Partners (Middle East) Ltd | 02387876 | 01/02/1995 | 30/06/1999 | Dissolved |
| JACOBSGIBB LTD | 02387707 | 01/02/1995 | 30/06/1999 | Silver |
| Nick Derbyshire Design Associates Ltd | 03005361 | 20/12/1994 | 30/06/1999 | Dissolved |
| Sir Alexander Gibb & Partners Ltd | 02025661 | 01/02/1995 | 30/06/1999 | Dissolved |
| Solutus Ltd | 03730466 | 10/03/1999 | 30/06/1999 | Dissolved |
| The Gibb Foundation Ltd | 03680065 | 08/12/1998 | 30/06/1999 | Dissolved |
| WESTMINSTER AND EARLEY SERVICES LIMITED | 00500510 | 01/02/1995 | 30/06/1999 | Dissolved |