| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CYMDEITHAS GENWEIRWYR GWALIA CYF | 03940809 | 06/03/2000 | Not Trading |
| Eisteddfod Genedlaethol Frenhinol Cymru Bro Ogwr | 03339326 | 27/06/1997 | Dissolved |
| SIOP YR HEN BONT Y MILENIWM CYFYNGEDIG | 04300494 | 18/10/2001 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AWEN CYMRU LIMITED | 06856891 | 01/12/2009 | 31/07/2012 | Dissolved |
| AWEN WALES LIMITED | 06856855 | 01/12/2009 | 31/07/2012 | Silver |
| BMSS LIMITED | 00095035 | 28/06/1993 | 11/01/1996 | Dissolved |
| CHANNEL ENVIRONMENTAL SERVICES LIMITED | 02411759 | 31/03/1992 | 12/04/1992 | Dissolved |
| CWMNI RHEILFFORDD BEDDGELERT CYFYNGEDIG | 02712938 | 28/10/1993 | 09/11/1998 | Bronze |
| Cwmni Rheilffordd Caernarfon Cyfyngedig | 02856901 | 28/10/1993 | 31/03/1998 | Dissolved |
| DWR CYMRU CYFYNGEDIG | 02366777 | 31/03/1992 | 31/03/1993 | Amber |
| ECLECTICA DRINDOD LIMITED | 05495309 | 11/05/2007 | 12/07/2024 | One Red Flag |
| HYDER LIMITED | 02366776 | 31/03/1992 | 31/03/1993 | Dissolved |
| Htv Cymru/Wales | 02265178 | 05/06/1992 | 02/07/1993 | Dissolved |
| IG DESIGN GROUP PLC | 01401155 | 04/07/1996 | 31/03/2009 | Gold |
| INSTITUTE OF WATER | 00539193 | 13/07/1991 | 07/05/1992 | Gold |
| ITV WALES & WEST GROUP LIMITED | 01212160 | 05/06/1992 | 31/12/1996 | Dissolved |
| The Management & Enterprise National Training Organisation | 02419343 | 16/09/1996 | 06/04/1998 | Dissolved |
| The Water Services Association of England & Wales | 01710723 | 21/11/1992 | 31/03/1993 | Dissolved |
| UTILITIES AND SERVICE INDUSTRIES TRAINING LIMITED | 01741451 | 30/11/1991 | 31/03/1993 | Dissolved |
| WW SHARE SCHEMES TRUSTEES LIMITED | 02388914 | 31/03/1992 | 31/03/1993 | Dissolved |