| COOKE, Jo ACTIVE | Secretary | 20 Jan 2021 | | | | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| BENNETT, James Hywel ACTIVE | Director | 24 May 2017 | | United Kingdom | November 1977 | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| HUNTINGTON, Richard Hethersett ACTIVE | Director | 02 Jan 2025 | | England | June 1967 | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| JAGGER, Denise Nichola ACTIVE | Director | 01 Sep 2025 | | England | September 1958 | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| MORISETTI, Lesley ACTIVE | Director | 22 Jul 2021 | | England | June 1960 | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| PICKFORD, Sharon ACTIVE | Director | 28 Nov 2018 | | England | July 1972 | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| ROBERTS, Paul ACTIVE | Director | 01 Oct 2022 | | England | April 1978 | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| ANDREWS, Stephen RESIGNED | Secretary | 22 Feb 1995 | 24 Jul 2002 | | | 249 Winsley Road, Bradford On Avon, Wiltshire, BA15 1QS |
| BOLLOM, Ian Richard RESIGNED | Secretary | 14 Dec 1993 | 22 Feb 1995 | | | Brindle House, Coate, Devizes, Wiltshire, SN10 3LE |
| BONIFACE, Paul RESIGNED | Secretary | 18 Oct 2018 | 20 Jan 2021 | | | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| BUTLER, Timothy John RESIGNED | Secretary | 24 Jul 2002 | 17 Oct 2018 | | | 4 Forge Close, West Overton, Marlborough, Wiltshire, SN8 4PG |
| JONES, Simon Richard RESIGNED | Secretary | | 14 Dec 1993 | | | The Hill House, Batcombe, Shepton Mallet, Somerset, BA4 6HD |
| BOLLOM, Ian Richard RESIGNED | Director | | 08 Oct 1998 | | March 1950 | Brindle House, Coate, Devizes, Wiltshire, SN10 3LE |
| BURTON, Ian Vincent RESIGNED | Director | | 02 Jul 1996 | | April 1936 | 5 Budbury Ridge, Bradford On Avon, Wiltshire, BA15 1QP |
| COPESTAKE, Andrew Paul RESIGNED | Director | 18 May 1998 | 24 Jun 2014 | England | May 1958 | Red Lodge, 179a Cheney Manor Road, Swindon, Wiltshire, SN2 2NY |
| DAY, Michael Patrick RESIGNED | Director | 01 Jan 2021 | 31 Aug 2022 | England | February 1953 | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| DIXON, Anne RESIGNED | Director | 04 Dec 2001 | 31 Jan 2007 | United Kingdom | July 1959 | 3 Old Theatre Place, The Square, Ramsbury, Marlborough, Wiltshire, SN8 2PE |
| DRURY, Martin RESIGNED | Director | | 27 Nov 2000 | England | April 1938 | 3 Victoria Rise, London, SW4 0PB |
| EVANS, Deirdre Therese RESIGNED | Director | 12 May 2014 | 20 Feb 2017 | England | September 1967 | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| GEE, Rowland Jacob RESIGNED | Director | 09 Oct 1997 | 04 Dec 2001 | England | February 1946 | 9 Ilchester Place, London, W14 8AA |
| GRIMSEY, Inga Margaret Amy RESIGNED | Director | 02 Jul 1996 | 31 Jan 2005 | | October 1952 | 10 Carlisle Road, London, NW6 6TJ |
| GURASSA, Charles Mark RESIGNED | Director | 11 Jan 2006 | 17 May 2014 | United Kingdom | February 1956 | 121, Elgin Crescent, London, W11 2JH |
| JORDAN, Jacqueline Emily RESIGNED | Director | 16 Oct 2014 | 28 Nov 2018 | England | August 1968 | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| KENNAWAY, Roger Ian RESIGNED | Director | | 18 May 1995 | England | July 1938 | 32 Rylett Crescent, London, W12 9RL |
| LAIRD, Ruth RESIGNED | Director | 27 Nov 2000 | 14 Aug 2003 | Northern Ireland | January 1954 | 27 Ascot Park, Newtownards, County Down, BT23 4AZ |
| LITTLE, Jill Caroline RESIGNED | Director | 01 Jul 2015 | 31 Dec 2018 | England | September 1953 | Green Jade, Broomershill Lane, Pulborough, West Sussex, RH20 2DU, England |
| MANN, Patricia Kathleen Randall RESIGNED | Director | 01 Feb 2003 | 15 Sep 2006 | | September 1937 | 269 Lonsdale Road, Barnes, London, SW13 9QL |
| MCGINLEY, Aideen RESIGNED | Director | 01 Sep 2022 | 31 Aug 2025 | Northern Ireland | May 1954 | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| MCGRADY, Hilary RESIGNED | Director | 12 May 2014 | 28 Nov 2018 | Northern Ireland | February 1966 | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| MOORE, Timothy Roger William RESIGNED | Director | 01 Jul 2015 | 21 Jul 2021 | England | July 1946 | West Cottage, White Street, Horningsham, Warminster, Wiltshire, BA12 7LH, England |
| MULLIN, Clare Elizabeth RESIGNED | Director | 06 Jun 2011 | 25 Jul 2014 | United Kingdom | April 1972 | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| MURRAY, Simon Charles Stuart RESIGNED | Director | 11 Jan 2006 | 09 Jul 2014 | England | June 1955 | Broughtons, Flaxley, Newnham On Severn, Gloucestershire, GL14 1JW |
| NICHIONNA, Orna Gabrielle RESIGNED | Director | 13 Sep 2017 | 28 Feb 2022 | England | February 1956 | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| PARKER, Timothy Charles RESIGNED | Director | 01 Jan 2019 | 01 Oct 2021 | England | June 1955 | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| PARKER, Timothy Charles RESIGNED | Director | 12 May 2014 | 15 Jul 2015 | United Kingdom | June 1955 | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| PATEL, Zarin Homi RESIGNED | Director | 14 Jul 2022 | 31 Dec 2024 | United Kingdom | February 1961 | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| REYNOLDS, Fiona Clare RESIGNED | Director | 11 Jan 2001 | 11 Jan 2006 | United Kingdom | March 1958 | The Glebe House, Coates, Cirencester, Gloucestershire, GL7 2NU |
| ROBERTS, Anne Clark RESIGNED | Director | | 22 Feb 1994 | | January 1961 | Southwick Court, Southwick, Trowbridge, Wiltshire, BA14 9QB |
| SEKERS, David Nicholas Oliver RESIGNED | Director | 08 Oct 1998 | 31 Oct 2001 | | September 1943 | 14 Rose Hill, Dorking, Surrey, RH4 2ED |
| SELL, John Russell RESIGNED | Director | 01 Jan 2019 | 31 Dec 2020 | England | October 1944 | Heelis, Kemble Drive, Swindon, Wiltshire, SN2 2NA |
| STANIFORTH, Sarah Elizabeth RESIGNED | Director | 11 Jan 2006 | 30 Jun 2014 | England | January 1953 | 9 Lypiatt Terrace, Lypiatt Road Cheltenham, Gloucester, GL50 2SX |
| STEPHENSON, John Stanfield RESIGNED | Director | | 19 Jul 1999 | | February 1932 | The Coach House Cowcombe Hill, Chalford, Stroud, Gloucestershire, GL6 8HP |
| STIRLING, Angus Duncan Aeneas, Sir RESIGNED | Director | | 29 Mar 1996 | | December 1933 | 25 Ladbroke Grove, London, W11 3AY |
| SWIFT, Stephen Paul RESIGNED | Director | 18 Jun 2008 | 08 Jun 2011 | England | May 1953 | Llama Farm, Old House Land Romsley, Halesowen, Worcestershire, B62 0EX |
| SWIFT, Stephen Paul RESIGNED | Director | 22 Mar 2007 | 01 Jun 2007 | England | May 1953 | Llama Farm, Old House Land Romsley, Halesowen, Worcestershire, B62 0EX |
| TARSH, Derek Nicholas RESIGNED | Director | 19 Jul 1999 | 17 May 2014 | England | May 1934 | Wentworth House The Green, Richmond, Surrey, TW9 1PB |
| TAYLOR, Michael Bowes RESIGNED | Director | | 23 May 2001 | United Kingdom | July 1942 | 96 Dora Road, London, SW19 7HJ |
| WIGMORE, Andrew George Alexander RESIGNED | Director | 18 Mar 2004 | 01 Sep 2008 | United Kingdom | February 1955 | 24 Chalfont Road, Oxford, Oxfordshire, OX2 6TH |
| WILKINSON, Susan Linda RESIGNED | Director | 18 Jun 2008 | 27 May 2011 | United Kingdom | November 1956 | 39 Lullington Garth, London, N12 7LT |
| WILLS, Richard John RESIGNED | Director | 01 Jul 2015 | 31 Aug 2017 | England | June 1948 | 14, Hare Hill Close, Pyrford, Woking, Surrey, GU22 8UH, England |