| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Ephemeral Co Ltd | 04072466 | 15/09/2000 | Dissolved |
| Memtec (U K) Ltd | 03297713 | 19/02/1997 | Dissolved |
| Spring Bank B.S. Ltd | 01479386 | 24/02/1999 | Dissolved |
| Spring Bank Filtration Ltd | 00860036 | 03/02/2000 | Dissolved |
| Spring Bank Water Treatment Ltd | 01059470 | 24/02/1999 | Dissolved |
| Spring Bank Willett Ltd | 00151100 | 03/02/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 00426414 LIMITED | 00426414 | 24/02/1999 | 21/04/2006 | Strike Off |
| Acumem Ltd | 02522625 | 09/05/2000 | 21/04/2006 | Dissolved |
| CORD CHEMICAL COMPANY LIMITED | 02079454 | 21/03/1997 | 07/12/1998 | Dissolved |
| DEWPLAN LIMITED | 01640854 | 24/02/1999 | 21/04/2006 | Dissolved |
| Dwa (Uk) Ltd | 02967107 | 24/02/1999 | 21/04/2006 | Dissolved |
| EDWARDS & JONES LIMITED | 00132823 | 24/02/1999 | 21/04/2006 | Dissolved |
| ELGA GROUP SERVICES LIMITED | 03157533 | 24/02/1999 | 21/04/2006 | Dissolved |
| Hydrocompact (U K) Ltd | 02030383 | 23/07/1992 | 30/11/1993 | Dissolved |
| Lmwt Ltd | 00406299 | 23/07/1992 | 30/11/1993 | Dissolved |
| Lswt Ltd | 00367945 | 23/07/1992 | 30/11/1993 | Dissolved |
| MASS TRANSFER INTERNATIONAL LIMITED | 02887390 | 31/12/2000 | 21/04/2006 | Dissolved |
| Memcor Ltd | 02357678 | 09/02/1995 | 21/01/2004 | Dissolved |
| OTV BIRWELCO LIMITED | 02418965 | 02/08/2000 | 19/05/2005 | Gold |
| PALL FILTRATION AND SEPARATIONS LIMITED | 02060935 | 21/03/1997 | 07/12/1998 | Dissolved |
| PWT PROJECTS LIMITED | 00090710 | 24/10/1992 | 02/10/1993 | Not Trading |
| Paterson Candy International (Overseas) Ltd | 00654888 | 23/07/1992 | 30/11/1993 | Dissolved |
| Paterson Candy International Ltd | 01571422 | 23/07/1992 | 30/11/1993 | Dissolved |
| Permutit-Boby Ltd | 00332338 | 23/07/1992 | 30/11/1993 | Dissolved |
| Spring Bank Water Systems Ltd | 02619737 | 09/05/2000 | 21/04/2006 | Dissolved |
| T.T.O. Ltd | 02721225 | 18/12/2000 | 31/08/2004 | Dissolved |
| THAMES WATER OVERSEAS CONSULTANCY LIMITED | 00757959 | 23/07/1992 | 30/11/1993 | Dissolved |
| The Permutit Company Ltd | 03053219 | 24/02/1999 | 21/04/2006 | Dissolved |
| USF HOLDING (UK) LIMITED | 02417739 | 24/02/1999 | 02/08/2004 | Dissolved |
| VWS (UK) LTD | 00327847 | 24/02/1999 | 19/05/2005 | Silver |
| WATER PROJECTS INTERNATIONAL LIMITED | 00258985 | 23/07/1992 | 30/11/1993 | Dissolved |
| WILLIAM BOBY & COMPANY LIMITED | 00192612 | 23/07/1992 | 30/11/1993 | Dissolved |
| Waterflood Engineering Ltd | 00375498 | 23/07/1992 | 30/11/1993 | Dissolved |