| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Barnmear Ltd | 03979160 | 12/07/2002 | Dissolved |
| Break I.T. Ltd | 05049340 | 01/10/2006 | Dissolved |
| Hackett Management Services Limited | 02589048 | 11/12/1998 | Dissolved |
| Ivyclimber Ltd | 03925172 | 12/07/2002 | Dissolved |
| Mistyreen Ltd | 03979167 | 12/07/2002 | Dissolved |
| Prism 2000 Ltd | 02952827 | 13/11/1998 | Dissolved |
| X-Modall Ltd | 03247307 | 09/09/1996 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 1509 GROUP | 04104101 | 01/08/2004 | 21/11/2022 | Silver |
| Avander Limited | 02690296 | 24/02/1992 | 02/06/1992 | Dissolved |
| Drake & Harvey Ltd | 02763602 | 09/02/1994 | 28/02/1995 | Dissolved |
| Isis Business Centre Management Company Ltd | 02443837 | 27/03/2002 | 21/02/2005 | Dissolved |
| Lantech Property Maintenance Ltd | 03866897 | 27/10/1999 | 04/04/2003 | Dissolved |
| MELTCLEAR LIMITED | 03979163 | 12/07/2002 | 10/03/2003 | Dissolved |
| Media Hub Ltd | 03250397 | 16/09/1996 | 31/10/2002 | Dissolved |
| P.F. Connor Limited | 02690292 | 24/02/1992 | 09/06/1992 | Dissolved |
| PORTER GARLAND LIMITED | 05210693 | 20/08/2004 | 01/10/2012 | Silver |
| PORTER GARLAND LIMITED | 05210693 | 20/08/2004 | 31/03/2013 | Silver |
| ROYAL GRAMMAR SCHOOL GUILDFORD | 10874615 | 19/07/2017 | 20/12/2022 | Silver |
| THE RGS GUILDFORD INTERNATIONAL (DUBAI) LIMITED | 11422203 | 28/06/2018 | 21/11/2022 | Silver |
| THE RGS GUILDFORD INTERNATIONAL LIMITED | 09633181 | 06/07/2015 | 21/11/2022 | Silver |
| THE ROYAL GRAMMAR SCHOOL, GUILDFORD FOUNDATION | 04232306 | 08/04/2002 | 31/07/2004 | Silver |