| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALEXANDRA VAULTS MANAGEMENT SERVICES COMPANY LIMITED | 06848829 | 17/03/2009 | Dissolved |
| FUEL MANAGEMENT SERVICES LIMITED | 07137211 | 26/01/2010 | Dissolved |
| M2 TRAINING LIMITED | 04814257 | 31/07/2007 | Dissolved |
| M3 STRATEGIC INVESTMENTS LIMITED | 07335852 | 04/08/2010 | Dissolved |
| SMART EMISSIONS MANAGEMENT LTD | 07313268 | 13/07/2010 | Dissolved |
| SMART ENERGY MANAGEMENT GROUP LTD | 07426490 | 02/11/2010 | Dissolved |
| SMART FLEET MANAGEMENT LIMITED | 07428082 | 03/11/2010 | Dissolved |
| SMART FRICTION MANAGEMENT LTD | 07427549 | 02/11/2010 | Dissolved |
| SMART FUEL MANAGEMENT LTD | 07428050 | 03/11/2010 | Dissolved |
| SMART POWER GENERATION LTD | 07428501 | 03/11/2010 | Dissolved |
| STRATFORD HISTORIC BUILDINGS TRUST | 08206419 | 07/09/2012 | Silver |
| WORK SKILLS LIMITED | 07991562 | 30/04/2012 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AECOM DESIGN BUILD LIMITED | 02699219 | 23/04/1997 | 01/12/1998 | Silver |
| ARBRE FARMING LIMITED | 03205944 | 24/06/1997 | 10/04/2000 | Dissolved |
| Arbre Energy Ltd | 03014342 | 24/06/1997 | 10/04/2000 | Dissolved |
| CITYWEST HOMES LIMITED | 04383394 | 06/04/2006 | 21/10/2008 | Amber |
| EFKON ROAD PRICING LIMITED | 05578828 | 29/09/2005 | 31/10/2006 | Dissolved |
| ENVIRONMENTAL TRUST SCHEME REGULATORY BODY | 03221000 | 31/05/2000 | 01/06/2003 | Gold |
| FCC ENVIRONMENT (UK) LIMITED | 02902416 | 26/01/1999 | 10/04/2000 | Bronze |
| FIRST RENEWABLES LIMITED | 03715615 | 18/05/1999 | 10/04/2000 | Dissolved |
| KELDA GROUP LIMITED | 02366627 | 01/04/1996 | 10/04/2000 | Gold |
| KELDA GROUP PENSION TRUSTEES LIMITED | 03309639 | 25/09/1998 | 10/04/2000 | Not Trading |
| KELDA WATER SERVICES LIMITED | 02180706 | 16/05/1997 | 10/04/2000 | Gold |
| KELLER GROUP PLC | 02442580 | 01/07/1999 | 09/05/2002 | Silver |
| Leeds Training Direct Ltd | 03307695 | 24/07/1997 | 24/11/1998 | Dissolved |
| The Leeds Tec Ltd | 02543173 | 18/03/1997 | 13/04/2000 | Dissolved |
| The Water Services Association of England & Wales | 01710723 | 01/04/1996 | 30/04/1997 | Dissolved |
| UK TRAINING TEAM LIMITED | 07849015 | 30/04/2012 | 14/07/2014 | Dissolved |
| UTILITIES AND SERVICE INDUSTRIES TRAINING LIMITED | 01741451 | 31/05/1996 | 09/06/1999 | Dissolved |
| WATERAID | 01787329 | 23/09/1998 | 08/03/2000 | Silver |
| WEST YORKSHIRE POLICE COMMUNITY TRUST | 03227212 | 23/11/1999 | 15/10/2004 | Dissolved |
| WHITE ROSE ENVIRONMENTAL OPERATIONS LIMITED | 02428371 | 01/04/1997 | 10/04/2000 | Dissolved |
| YORKSHIRE WATER PROJECTS LIMITED | 03028361 | 21/01/2000 | 10/04/2000 | Dissolved |
| YORKSHIRE WATER SERVICES LIMITED | 02366682 | 01/04/1996 | 10/04/2000 | Silver |
| Yorkshire Water (China) Ltd | 02354948 | 09/04/1999 | 10/04/2000 | Dissolved |