| CREESE, Teresa Louise ACTIVE | Secretary | 11 May 2022 | | | | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| ADEBAYO, Adebola ACTIVE | Director | 01 Apr 2024 | | England | June 1980 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| BONNER, Richard John ACTIVE | Director | 24 Jun 2015 | | England | September 1969 | Portwall Place, Portwall Lane, Bristol, BS1 6NA, England |
| BOUCHER, Peter Valentine ACTIVE | Director | 01 Apr 2024 | | England | January 1971 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| COLSTON, Alistair Ian ACTIVE | Director | 01 Jul 2025 | | England | April 1960 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| GREENWOOD, Joanna Cathryn ACTIVE | Director | 16 Jun 2005 | | England | June 1970 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| HOLT, Jeremy Martin ACTIVE | Director | 01 Apr 2024 | | England | June 1956 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| OSEI, Pipim Poku ACTIVE | Director | 01 Apr 2024 | | England | April 1982 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| PHILLIPS, Briony Eleanor ACTIVE | Director | 01 Apr 2024 | | England | October 1981 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| PRESCOTT, Simon Paul ACTIVE | Director | 05 Dec 2012 | | England | August 1971 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| ROWBERRY, Edward John ACTIVE | Director | 01 Jul 2025 | | England | August 1975 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| SKELLETT, Colin Frank ACTIVE | Director | 10 Sep 2020 | | United Kingdom | June 1945 | Wessex Water, Claverton Down Road, Claverton Down, Bath, BA2 7WW, England |
| URE, Douglas Richard ACTIVE | Director | 31 Mar 2026 | | England | May 1976 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| WEST, Steven George, Professor Sir ACTIVE | Director | 22 Jan 2025 | | England | March 1961 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| WESTBROOK, Kate Victoria ACTIVE | Director | 01 Jul 2025 | | England | May 1978 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| GREENWOOD, Joanna Cathryn RESIGNED | Secretary | 06 Mar 2014 | 19 Jul 2019 | | | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| GUENO, Jemma Amy RESIGNED | Secretary | 19 Jul 2019 | 24 May 2022 | | | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| HUTCHINGS, Nigel Barrie RESIGNED | Secretary | 01 Jan 2000 | 31 Dec 2013 | | | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| MARSHFIELD, Susan Joy RESIGNED | Secretary | | 01 Jun 1995 | | | 58 Parkside Avenue, Winterbourne, Bristol, Avon, BS36 1LX |
| MONAGHAN, Fiona Rosemary RESIGNED | Secretary | 30 Jan 1998 | 31 Dec 1999 | | | The Old Post Office, Treborough, Somerset, TA23 0QW |
| PALMER, John Leslie RESIGNED | Secretary | 30 Jun 1995 | 30 Jan 1998 | | | 100 Ashlawn Road, Rugby, Warwickshire, CV22 5ER |
| ANDERSON, Timothy Thornton RESIGNED | Director | | 28 Jan 1993 | England | July 1941 | 32 St Johns Road, Clifton, Bristol, BS8 2HG |
| BARBER, Alan Roy RESIGNED | Director | 06 Nov 1992 | 14 Jul 1993 | | July 1940 | Mulberry House, 1 Church Road, Stoke Bishop, Bristol, BS9 1JS |
| BLAKE, Kelvin John RESIGNED | Director | 14 Jul 2016 | 31 Mar 2024 | England | August 1971 | Pp Hw H971, PO BOX 67501, Bt Centre, London, EC1P 1PG, United Kingdom |
| BOOY, Christopher Arthur RESIGNED | Director | 02 Sep 2005 | 20 May 2009 | United Kingdom | November 1952 | Eastleach, Station Road Portbury, Bristol, Avon, BS20 7TN |
| BURKE, John Joseph RESIGNED | Director | 02 Sep 1994 | 02 Apr 2004 | | September 1942 | Lea Farm Sutton Wick, Bishop Sutton, Bristol, BS39 5XR |
| CHAKRABARTI-GALLEMORE, Jaya RESIGNED | Director | 05 Dec 2012 | 31 Mar 2024 | United Kingdom | April 1973 | 28, Broad Street, Bristol, BS1 2HG, England |
| CLAISSE, Douglas Martin RESIGNED | Director | 25 Feb 1993 | 23 Oct 2003 | | October 1934 | Higher Shortwood Farm, Litton, Bath, Bath And North East Somerset, BA3 4PT |
| COOPER, Simon Charles Bowden RESIGNED | Director | 28 May 1997 | 31 Mar 2024 | United Kingdom | January 1958 | North Barn, 141 High Street, Marshfield, Wiltshire, SN14 8LU |
| CRAIG, Paul Anthony RESIGNED | Director | 29 May 2015 | 20 Oct 2021 | United Kingdom | April 1964 | Rolls Royce Plc, Filton, Bristol, BS34 7QE, England |
| CREN, Serge Alphonse Marie RESIGNED | Director | 07 Jun 2002 | 15 Apr 2015 | United Kingdom | June 1970 | Newlyn, Haw Lane, Olveston, South Gloucestershire, BS35 4EQ |
| CUSSEN, Edward William RESIGNED | Director | 05 Dec 2012 | 23 May 2019 | England | March 1951 | 40, Berkeley Square, Bristol, BS8 1HU, England |
| DURIE, James Robert RESIGNED | Director | 07 Jul 2006 | 01 Jul 2023 | United Kingdom | April 1969 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| DURIE, William Howard Robert RESIGNED | Director | 25 Feb 1993 | 31 Mar 2024 | England | October 1941 | Deerhurst, Church Road, Abbots Leigh, Bristol, BS8 3QU |
| EVERITT, John Meldrum RESIGNED | Director | 07 Sep 2007 | 05 Dec 2012 | England | October 1951 | The Mount, Newton St Loe, Bath, Avon, BA2 9BT |
| EWENS, Alec David RESIGNED | Director | 24 May 1995 | 23 May 2002 | | August 1929 | Sparsholt, Tower House Lane Wraxall, Bristol, Avon, BS48 1JT |
| EWENS, Alec David RESIGNED | Director | | 28 Jan 1993 | | August 1929 | Sparsholt, Tower House Lane Wraxall, Bristol, Avon, BS48 1JT |
| FITZSIMONS, Patrick Anthony RESIGNED | Director | 25 Feb 1993 | 01 Jul 1994 | England | March 1946 | Hill House, Hannington, Swindon, Wiltshire, SN6 7RS |
| FLOYD, Peter John RESIGNED | Director | 29 May 1996 | 23 May 2001 | | December 1938 | Maryland, Old Down Tockington, Bristol, Avon, BS32 4PT |
| FROST, Jonathan RESIGNED | Director | 01 Apr 2024 | 08 Apr 2026 | England | October 1953 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| GEOGHEGAN, Christopher Vincent RESIGNED | Director | 25 Feb 1993 | 27 May 1998 | United Kingdom | June 1954 | Gatcombe, Bridgwater Road Sidcot, Winscombe, North Somerset, BS25 1NH |
| GIBBS, Kevin John RESIGNED | Director | 07 Sep 2001 | 31 Mar 2024 | United Kingdom | May 1954 | 29 Royal Albert Road Westbury Park, Bristol, BS6 7NT |
| GODWIN, John Peter RESIGNED | Director | 07 Sep 2007 | 20 May 2009 | England | June 1942 | 19 Prospect Close, Winterbourne Down, Bristol, Avon, BS36 1BD |
| GRAY, Iain Gilmour RESIGNED | Director | 03 Nov 2006 | 09 Dec 2009 | England | March 1957 | 23 Samian Way, Stoke Gifford, Bristol, Avon, BS34 8UQ |
| GRIER, Christopher Ian RESIGNED | Director | 27 Jul 2017 | 31 Mar 2024 | England | July 1974 | Pegasus House, Aerospace Avenue, Filton, Bristol, BS34 7PA, England |
| HEPPELL, Wendy Susan RESIGNED | Director | 16 Jun 2005 | 07 Jul 2006 | | December 1966 | 19 Heol Street Denys, Lisvane, Cardiff, South Glamorgan, CF14 0RU |
| HOLLAND, Helen RESIGNED | Director | 01 Jul 2005 | 20 May 2009 | England | June 1953 | 19 Frayne Road, Ashton, Bristol, BS3 1RU |
| HORDLE, Jeffrey Gordon RESIGNED | Director | | 23 May 2001 | | March 1934 | The Coach House, Pemroke Vale Clifton, Bristol, BS8 3DN |
| HUTCHINSON, Roger Malcolm RESIGNED | Director | 07 Oct 2005 | 06 Jul 2007 | | August 1946 | 3 Northville Road, Northville, Bristol, South Gloucestershire, BS7 0RQ |
| JANKE, Barbara RESIGNED | Director | 29 Jun 2009 | 05 Dec 2012 | England | June 1947 | The Council House, College Green, Bristol, BS1 5TR, United Kingdom |
| KEY, Douglas Roger RESIGNED | Director | 05 Dec 2012 | 20 Oct 2021 | United Kingdom | July 1955 | 26, Berkeley Square, Bristol, BS8 1HP, England |
| MARSH, David John RESIGNED | Director | 25 Feb 1993 | 05 Dec 2012 | United Kingdom | January 1944 | The Old Rectory, Broad Street Wrington, Bristol, BS40 5LD |
| MARSHALL, Philip Duncan Geoffery RESIGNED | Director | 02 Apr 2004 | 06 May 2005 | | March 1969 | 4 Bannerdown Road, Bath, Bath And North East Somerset, BA1 7ND |
| MARTIN, Andrew RESIGNED | Director | 25 Feb 2016 | 20 Apr 2017 | England | December 1976 | Pegasus House, Aerospace Avenue, Filton, Bristol, BS34 7PA, England |
| MCDERMOTT, Theresa Evelyn RESIGNED | Director | 06 May 2005 | 20 May 2009 | United Kingdom | December 1956 | Balcombe House, Shockerwick Lane, Bath, Bones, BA1 7LQ |
| MCKINLAY, Robert Murray RESIGNED | Director | 25 May 1994 | 27 May 1998 | | January 1934 | 43 Glenavon Park, Bristol, BS9 1RW |
| MELLOR, David Tom RESIGNED | Director | 05 Dec 2012 | 31 Mar 2024 | United Kingdom | March 1944 | 52, Kingsdown Parade, Bristol, BS6 5UF, England |
| MORDAUNT, Terence Charles RESIGNED | Director | 24 Jun 2009 | 24 Jun 2009 | England | May 1947 | Westwood House, Rode Hill, Colerne, Chippenham, Wiltshire, SN14 8AR |
| ORGAN, Bryan Saxby RESIGNED | Director | 02 Sep 2005 | 07 Sep 2007 | England | March 1930 | 5 Chandag Road, Keynsham, Bristol, Avon, BS31 1NS |
| PARKIN, John RESIGNED | Director | 06 Jul 2001 | 31 May 2002 | | September 1954 | Sycamore Barn, Stone Allerton, Axbridge, Somerset, BS26 2NN |
| PONTIN, John Graham RESIGNED | Director | 25 Feb 1993 | 05 Dec 2012 | United Kingdom | June 1937 | 8 High Street, Chew Magna, Bristol, Somerset, BS40 8PW |
| POWELL, David Philip RESIGNED | Director | 16 Jan 2002 | 09 Sep 2011 | United Kingdom | September 1954 | 8, Badminton Road, Downend, Bristol, BS16 6BQ, United Kingdom |
| PRESCOTT, Michael John RESIGNED | Director | | 28 Jan 1993 | | July 1940 | 134 Bath Road, Longwell Green, Bristol, Avon, BS15 6DE |
| PRIOR, Alice Mary RESIGNED | Director | 04 Nov 1994 | 20 Jan 1998 | England | April 1942 | Youngwood Farm, Youngwood Lane, Nailsea, North Somerset, BS48 4NR |
| PULLEN, Sarah RESIGNED | Director | 01 Apr 2024 | 01 Apr 2025 | England | February 1971 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| REES, Peter RESIGNED | Director | 06 Nov 1992 | 01 Jul 1994 | | October 1947 | 26 Aintree Drive, Downend, Bristol, Avon, BS16 6SY |
| RILETT, Peter John RESIGNED | Director | 02 Sep 2005 | 01 Jul 2023 | England | April 1950 | Grange Fell, Leigh Woods, Bristol, BS8 3PX |
| RUSSETT, Robert Harold RESIGNED | Director | 25 May 1994 | 29 May 1996 | England | April 1953 | Coxgrove Lodge, Coxgrove Hill Pucklechurch, Bristol, Avon, BS16 9NL |
| RYLANCE, Nicola Jane RESIGNED | Director | 26 May 1999 | 06 Oct 2006 | United Kingdom | March 1960 | Meade Farm, Upper Littleton Winford, Bristol, North Somerset, BS40 8HF |
| SAVAGE, John Christopher RESIGNED | Director | 27 May 1998 | 01 Feb 2025 | England | December 1944 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| SETTER, Michael Peter RESIGNED | Director | 27 May 1998 | 23 May 2001 | England | April 1947 | Priestpool House, Aust Road, Olveston, Bristol, Avon, BS35 4AS |
| SETTER, Michael Peter RESIGNED | Director | | 28 May 1997 | England | April 1947 | Priestpool House, Aust Road, Olveston, Bristol, Avon, BS35 4AS |
| SHEPHERD, Anthony James Vernon RESIGNED | Director | | 23 May 2001 | United Kingdom | September 1931 | Park Farm, Alderley, Wotton Under Edge, Gloucestershire, GL12 7QT |
| SHERWOOD, Peter Louis Michael RESIGNED | Director | 25 Feb 1993 | 26 Mar 2009 | | October 1941 | 10 College Road, Clifton, Bristol, BS8 3HZ |
| SKELLETT, Colin Frank RESIGNED | Director | 01 Jul 2005 | 23 May 2016 | United Kingdom | June 1945 | Wessex Water Services, Claverton Down Road, Claverton Down, Bath, BA2 7WW, United Kingdom |
| SKIPP, Andrew Mckenzie RESIGNED | Director | 05 Jul 2002 | 18 May 2007 | United Kingdom | January 1960 | Woodlands, Hill Lane, Weston In Gordano, Bristol, North Somerset, BS20 8PY |
| SMALLWOOD, Trevor RESIGNED | Director | 06 Jul 2001 | 27 Aug 2003 | United Kingdom | November 1947 | Bramble Cottage, Dinghurst Road, Churchill, North Somerset, BS25 5PJ |
| SMITH, Philip Meyrick RESIGNED | Director | 26 May 1999 | 31 Mar 2026 | United Kingdom | February 1962 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| STAINER, John Andrew RESIGNED | Director | 16 Jun 2005 | 02 Mar 2007 | | June 1952 | 28 Manor Park, Weston, Bath, BA1 3RJ |
| STORVIK, Simon RESIGNED | Director | 07 Oct 1994 | 28 Sep 2005 | England | July 1957 | 7 Rockleaze Avenue, Sneyd Park, Bristol, Avon, BS9 1NG |
| TANNER, Matthew Richard, Dr RESIGNED | Director | 16 Jul 2015 | 31 Mar 2024 | England | April 1966 | Geat Western Dockyard, Gas Ferry Road, Bristol, BS1 6TY, England |
| TANNER, Matthew Richard, Dr RESIGNED | Director | 24 Jun 2015 | 16 Jul 2015 | England | April 1966 | Great Western Dockyard, Gas Ferry Road, Bristol, BS1 6TY, England |
| TIDMARSH, James Napier, Sir RESIGNED | Director | 04 Aug 1995 | 17 Feb 2015 | United Kingdom | September 1932 | 8 Princes Building, Clifton, Bristol, BS8 4LB |
| TIDMARSH, James Napier, Sir RESIGNED | Director | 25 Feb 1993 | 25 May 1995 | United Kingdom | September 1932 | 8 Princes Building, Clifton, Bristol, BS8 4LB |
| TURNER, Graham RESIGNED | Director | 02 Sep 2005 | 05 Dec 2012 | England | January 1952 | Lenville, Bristol Road, Churchill, Somerset, BS25 5NJ |
| WEST, Steven George RESIGNED | Director | 05 Dec 2013 | 30 Nov 2017 | England | March 1961 | University Of The West Of England, Coldharbour Lane, Bristol, BS16 1QY, England |
| WINWOOD, Michael George RESIGNED | Director | | 25 May 1994 | | December 1946 | 2 Frome Bank Gardens, Winterbourne Down, Bristol, Avon, BS17 1BE |
| WRAY, Clive Richard RESIGNED | Director | 16 Jun 2005 | 01 Jan 2015 | United Kingdom | April 1949 | Leigh Court Business Centre, Abbots Leigh, Bristol, BS8 3RA |
| ZAIR, Roger Clive RESIGNED | Director | | 25 May 1994 | | October 1947 | 69 Downs Park East, Westbury Park, Bristol, BS6 7QG |