| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Bpwa Exhibition Management Co Ltd | 00968436 | 07/12/1993 | Dissolved |
| Clifton Capital Investments Ltd | 04669287 | 06/05/2003 | Dissolved |
| Concateno (2005) Ltd | 05199317 | 06/09/2004 | Dissolved |
| Concateno Finance Ltd | 05307838 | 13/12/2004 | Dissolved |
| LEGAL & GENERAL UK SELECT INVESTMENT TRUST PLC | 02977027 | 21/09/2000 | Dissolved |
| Mawlaw 661 Ltd | 05389931 | 11/03/2005 | Dissolved |
| RSVPI LIMITED | 03888770 | 31/08/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALS LABORATORIES (UK) LIMITED | 02391955 | 01/08/2000 | 25/03/2003 | Gold |
| ASPLAND AND JAMES LIMITED | 01512762 | 01/08/2000 | 25/03/2003 | Dissolved |
| AUGEAN LIMITED | 05199719 | 09/08/2004 | 07/04/2005 | Gold |
| AUGEAN WASTE LIMITED | 05199224 | 06/09/2004 | 04/02/2005 | Dissolved |
| Aea Technology Ergpp Ltd | 00897095 | 29/10/1993 | 09/08/1995 | Dissolved |
| Aea Technology Lwe Ltd | 00881356 | 29/10/1993 | 09/08/1995 | Dissolved |
| Aquaclear Ltd | 02417107 | 01/09/1993 | 09/08/1995 | Dissolved |
| BSI BRITISH STANDARDS LIMITED | 03555090 | 23/04/1998 | 07/03/2000 | Dissolved |
| BSI LIMITED | 03555107 | 23/04/1998 | 07/03/2000 | Silver |
| BSI MANAGEMENT SYSTEMS LTD. | 03555812 | 24/04/1998 | 07/03/2000 | Amber |
| BUREAU VERITAS COMMODITY SERVICES LIMITED | 02721275 | 27/04/1998 | 07/03/2000 | Silver |
| British Public Works Association | 00304217 | 07/12/1993 | 03/12/1996 | Dissolved |
| COZART LIMITED | 05139713 | 04/10/2007 | 24/06/2010 | Gold |
| Coastal Wastewater Consultants Ltd | 02633666 | 01/08/1993 | 30/11/1996 | Dissolved |
| Contract Services (S E) Ltd | 00780689 | 01/08/1993 | 30/11/1996 | Dissolved |
| ECLIPSE ACQUISITIONS LIMITED | 04996826 | 10/08/2006 | 08/02/2008 | Dissolved |
| ECLIPSE SCIENTIFIC GROUP LIMITED | 05158323 | 10/08/2006 | 08/02/2008 | Dissolved |
| ECLIPSE SCIENTIFIC HOLDINGS LIMITED | 04146543 | 01/02/2001 | 25/03/2003 | Dissolved |
| ECOCLEAR LIMITED | 02631521 | 22/07/1992 | 09/08/1995 | Not Trading |
| ERG (AIR POLLUTION CONTROL) LIMITED | 01389099 | 29/10/1993 | 09/08/1995 | Amber |
| Erg Environmental Resource Ltd | 01336621 | 29/10/1993 | 30/11/1996 | Dissolved |
| HALCROW WATER SERVICES LIMITED | 03055857 | 01/08/2000 | 25/03/2003 | Dissolved |
| INENCO GROUP LIMITED | 02435678 | 01/08/2000 | 25/03/2003 | Silver |
| INENCO LIMITED | 02790570 | 01/08/2000 | 25/03/2003 | Not Trading |
| INSPICIO ENVIRONMENTAL SERVICES GROUP LIMITED | 05729762 | 03/03/2006 | 08/02/2008 | Not Trading |
| MID KENT PENSION TRUSTEE LIMITED | 03483666 | 28/07/2000 | 25/03/2003 | Not Trading |
| McDowells Ltd | 02319189 | 01/08/1993 | 30/11/1996 | Dissolved |
| Mid Kent Financing Ltd | 04493385 | 25/10/2002 | 25/03/2003 | Dissolved |
| Mid Kent Water Ltd | 02559449 | 01/08/2000 | 25/03/2003 | Dissolved |
| NEPTUNA CONSULTANCY LTD. | 02929908 | 01/06/1994 | 01/06/1996 | Dissolved |
| SEAL ANALYTICAL LIMITED | 04008521 | 18/06/2004 | 08/07/2008 | Bronze |
| SOUTHERN WATER INDUSTRIES LIMITED | 02317996 | 01/04/1993 | 30/11/1996 | Not Trading |
| SOUTHERN WATER LIMITED | 02366620 | 01/01/1993 | 30/11/1996 | Silver |
| SOUTHERN WATER SERVICES LIMITED | 02366670 | 01/04/1992 | 01/02/1993 | Bronze |
| SWAN GROUP | 02288754 | 01/08/2000 | 25/03/2003 | Silver |
| SWAN PROPERTY LIMITED | 04529346 | 11/09/2002 | 25/03/2003 | Silver |
| Southern Science Ltd | 02315401 | 04/10/1993 | 30/11/1996 | Dissolved |
| Southern Water Global Ltd | 01257040 | 01/08/1993 | 30/11/1996 | Dissolved |
| Swan Capital Group Ltd | 04146751 | 07/03/2001 | 25/03/2003 | Dissolved |
| Swan Capital Holdings Ltd | 04063501 | 07/03/2001 | 25/03/2003 | Dissolved |
| Swan Capital Investments | 04164335 | 07/03/2001 | 25/03/2003 | Dissolved |
| Swan Capital Nominees Ltd | 04126046 | 07/03/2001 | 25/03/2003 | Dissolved |
| Tes Environmental Services Ltd | 02143520 | 23/08/1996 | 30/11/1996 | Dissolved |