| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ABSOLUTE PR AND MARKETING LIMITED | 09353664 | 12/12/2014 | Amber |
| FIA FOUNDATION | 04219306 | 01/12/2016 | Gold |
| PENINSULA TRUSTEES LIMITED | 02476685 | 03/11/2015 | Not Trading |
| PENNON DEFINED CONTRIBUTION PENSION TRUSTEE LIMITED | 08892034 | 21/03/2019 | Not Trading |
| PENNON PENSION TRUSTEES LIMITED | 02388620 | 01/03/2000 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ACETIP | 01576464 | 01/03/1998 | 25/03/2016 | Dissolved |
| ALIBONE RECYCLING LIMITED | 07288194 | 17/11/2010 | 25/03/2016 | Dissolved |
| ANALAQ LIMITED | 02114891 | 02/03/2002 | 25/03/2016 | Dissolved |
| ANGLIA RECYCLING LIMITED | 07288153 | 17/11/2010 | 25/03/2016 | Dissolved |
| D.M.P. (HOLDINGS) LIMITED | 02094479 | 01/03/1998 | 25/03/2016 | Dissolved |
| DEVON AND SOMERSET LAW SOCIETY | 00213866 | 17/04/2012 | 24/04/2018 | Bronze |
| ELE DATASYSTEMS | 01085369 | 01/03/1998 | 25/03/2016 | Dissolved |
| ENVIRO-LOGIC LIMITED | 02456474 | 15/09/2010 | 25/03/2016 | Dissolved |
| EXE CONTINENTAL | 02376963 | 01/03/1998 | 25/03/2016 | Dissolved |
| GREENHILL ENVIRONMENTAL LIMITED | 01772778 | 18/11/1999 | 25/03/2016 | Dissolved |
| GROSVENOR WASTE MANAGEMENT LIMITED | 07443737 | 18/11/2010 | 25/03/2016 | Dissolved |
| HAUL WASTE GROUP LIMITED | 02456472 | 15/09/2010 | 25/03/2016 | Dissolved |
| HAUL WASTE LIMITED | 00679090 | 01/03/1998 | 25/03/2016 | Dissolved |
| INTERCONTINENTAL RECYCLING LIMITED | 02400973 | 15/09/2010 | 25/03/2016 | Dissolved |
| LONDON RECYCLING LIMITED | 02487529 | 15/09/2010 | 25/03/2016 | Dissolved |
| MEDIWASTE LIMITED | 02815317 | 15/09/2010 | 25/03/2016 | Dissolved |
| OAKLEY WASTE MANAGEMENT LIMITED | 07288145 | 17/11/2010 | 25/03/2016 | Dissolved |
| PEARSONS (THETFORD) LIMITED | 07416991 | 22/10/2010 | 25/03/2016 | Dissolved |
| PENINSULA | 00685236 | 01/03/1998 | 25/03/2016 | Dissolved |
| PENINSULA LEASING LIMITED | 03926798 | 02/03/2000 | 25/03/2016 | Dissolved |
| PENNON DEFINED CONTRIBUTION PENSION TRUSTEE LIMITED | 08892034 | 12/02/2014 | 22/04/2014 | Not Trading |
| PENNON ENTERPRISES LIMITED | 02400971 | 15/09/2010 | 25/03/2016 | Dissolved |
| PENNON INTERNATIONAL LIMITED | 02456476 | 15/09/2010 | 25/03/2016 | Dissolved |
| PENNON LIMITED | 02456469 | 15/09/2010 | 25/03/2016 | Not Trading |
| PENNON POWER LIMITED | 00736732 | 01/03/1998 | 25/03/2016 | Silver |
| PENNON SHARE SCHEMES TRUSTEES LIMITED | 02388662 | 01/03/1998 | 25/03/2016 | Dissolved |
| PENNON SOUTH WEST LIMITED | 02421516 | 01/03/1998 | 25/03/2016 | Dissolved |
| PENNON TRUSTEE LIMITED | 02456467 | 01/03/1998 | 25/03/2016 | Dissolved |
| PENNON WASTE MANAGEMENT LIMITED | 00574299 | 01/03/1998 | 25/03/2016 | Dissolved |
| PENNON WASTE TECHNOLOGY LIMITED | 02400974 | 15/09/2010 | 25/03/2016 | Dissolved |
| PHOX SYSTEMS LIMITED | 01081019 | 01/03/1998 | 25/03/2016 | Dissolved |
| R3SOLVE LIMITED | 04066951 | 15/09/2010 | 25/03/2016 | Dissolved |
| RYDON PROPERTIES LIMITED | 02406261 | 01/03/1998 | 25/03/2016 | Dissolved |
| SEAL SECURITY SYSTEMS LIMITED | 01841937 | 02/03/2002 | 25/03/2016 | Dissolved |
| SOURCE FOR BUSINESS LIMITED | 08600327 | 08/07/2013 | 18/10/2013 | Not Trading |
| SOUTH WEST WATER CUSTOMER SERVICES LIMITED | 07620338 | 03/05/2011 | 22/06/2011 | Amber |
| SOUTH WEST WATER FINANCE PLC | 05722435 | 06/04/2006 | 25/03/2016 | Silver |
| SOUTH WEST WATER INTERNATIONAL LIMITED | 02456465 | 15/09/2010 | 25/03/2016 | Dissolved |
| SOUTH WEST WATER SERVICES LIMITED | 03559566 | 15/09/2010 | 25/03/2016 | Not Trading |
| SWW PENSION TRUSTEES LIMITED | 02451999 | 01/03/1998 | 25/03/2016 | Not Trading |
| VIRIDOR CONTRACTING LIMITED | 03736621 | 31/12/2000 | 25/03/2016 | Dissolved |
| VIRIDOR ENTERPRISES LIMITED | 02089280 | 01/03/1998 | 25/03/2016 | Dissolved |
| VIRIDOR GROUP LIMITED | 03559573 | 15/09/2010 | 25/03/2016 | Dissolved |
| VIRIDOR PROPERTIES LIMITED | 03574691 | 15/09/2010 | 25/03/2016 | Dissolved |
| VIRIDOR SOUTH WEST LIMITED | 02649478 | 01/03/1998 | 25/03/2016 | Dissolved |
| VIRIDOR WASTE (SOMERSET) PENSION SCHEME & LIFE ASSURANCE LIMITED | 06917699 | 28/05/2009 | 25/03/2016 | Dissolved |
| VIRIDOR WASTE 2 LIMITED | 02298543 | 01/03/2002 | 25/03/2016 | Silver |
| WATER WEST LIMITED | 01195844 | 01/03/1998 | 25/03/2016 | Dissolved |