| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Wcs 2007 Ltd | 04714577 | 26/11/2003 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CLARE HILL (ESHER) ASSOCIATION LIMITED | 00426122 | 07/09/2004 | 01/07/2008 | Silver |
| E-Ficient Offices Ltd | 03945967 | 11/10/2002 | 13/01/2009 | Dissolved |
| KELTBRAY AWS LIMITED | 04836483 | 25/04/2006 | 22/05/2007 | One Red Flag |
| KELTBRAY BUILDING SERVICES LIMITED | 03292310 | 31/03/2000 | 31/10/2003 | Amber |
| KELTBRAY DEMOLITION LIMITED | 01554321 | 01/08/1994 | 31/10/2003 | Silver |
| KELTBRAY ELECTRIFICATION PLANT LIMITED | 04305072 | 25/10/2001 | 31/10/2003 | Silver |
| KELTBRAY GROUP (HOLDINGS) LIMITED | 02810840 | 20/07/2000 | 31/10/2003 | Amber |
| KELTBRAY LIMITED | 01274344 | 20/07/1992 | 31/10/2003 | One Red Flag |
| KELTBRAY PLANT LIMITED | 01675402 | 20/07/1992 | 31/10/2003 | Silver |
| KELTBRAY WASTE SERVICES LIMITED | 02051681 | 31/03/1997 | 31/10/2003 | Dissolved |
| LEPUS ENVIRONMENTAL DEVELOPMENTS LLP | OC311840 | 05/04/2005 | 03/04/2024 | Dissolved |
| OCTANS CARBON LLP | OC312100 | 05/04/2005 | 05/04/2024 | Dissolved |
| PLANNED CONSTRUCTION SOLUTIONS LIMITED | 04303434 | 25/10/2001 | 31/10/2004 | Dissolved |