| LLOYD, Steven Anthony ACTIVE | Director | 05 Jun 2007 | | England | May 1967 | 6th Floor, 3 Piccadilly Place, Manchester, M1 3BN, England |
| LOMBARD, Richard Norman ACTIVE | Director | 03 Nov 2025 | | United Kingdom | May 1972 | Arup, 8 Fitzroy Street, London, W1T 4BJ, United Kingdom |
| LOVELL, Anthony Frederick ACTIVE | Director | 11 May 2022 | | United Kingdom | March 1968 | 8, Fitzroy Street, London, W1T 4BJ, United Kingdom |
| IRONS, Stuart Leonard RESIGNED | Secretary | | 31 Mar 2001 | | | 185 Eastwood Road, Rayleigh, Essex, SS6 7LE |
| SHAKESPEARE, Vanessa Jane RESIGNED | Secretary | 02 Nov 2015 | 01 Jul 2022 | | | 8, Fitzroy Street, London, W1T 4BJ, United Kingdom |
| SOMERS, Michael John RESIGNED | Secretary | 01 Apr 2001 | 31 Mar 2007 | | | Links Cottage, Links Road, Bradwell, Braintree, Essex, CM77 8DS |
| TWEEDIE, Matthew Stuart RESIGNED | Secretary | 01 Apr 2007 | 01 Nov 2015 | | | 13 Fitzroy Street, London, W1T 4BQ |
| BELFIELD, Alan James, Dr RESIGNED | Director | 05 Jun 2007 | 12 Nov 2019 | England | May 1956 | 13 Fitzroy Street, London, W1T 4BQ |
| BOSTOCK, Richard Mark RESIGNED | Director | | 13 Jul 1998 | | April 1939 | 14 Streatham Common South, London, SW16 3BT |
| FORREST, Craig Barr RESIGNED | Director | 13 Mar 2020 | 05 Jul 2024 | United Kingdom | February 1971 | 8, Fitzroy Street, London, W1T 4BJ, United Kingdom |
| HARVEY, John Douglas RESIGNED | Director | 13 Jul 1998 | 24 Jun 2004 | United Kingdom | June 1944 | Hunters Lodge, Buckenhill, Bromyard, Herefordshire, HR7 4PG |
| HARYOTT, Richard Baskcomb RESIGNED | Director | 13 Jul 1998 | 31 Mar 2003 | United Kingdom | March 1941 | Wellpond Cottage, Brickendon, Hertford, Hertfordshire, SG13 8NU |
| HILL, Terence Malcolm RESIGNED | Director | 01 Apr 2004 | 31 Mar 2009 | United Kingdom | June 1948 | 49 Lancaster Road, St Albans, Hertfordshire, AL1 4EP |
| HUNT, Geoffrey Nevil RESIGNED | Director | 23 May 2017 | 24 May 2022 | Wales | July 1961 | 8, Fitzroy Street, London, W1T 4BJ, United Kingdom |
| IRONS, Stuart Leonard RESIGNED | Director | 20 Nov 1995 | 13 Jul 1998 | | May 1939 | 185 Eastwood Road, Rayleigh, Essex, SS6 7LE |
| MARTIN, John Neville RESIGNED | Director | | 31 Mar 1995 | | April 1932 | Broadheath Nutcombe Lane, Hindhead, Surrey, GU26 6BP |
| MILES, John Charles RESIGNED | Director | 05 Jun 2007 | 01 Jan 2012 | United Kingdom | February 1951 | 13 Fitzroy Street, London, W1T 4BQ |
| SHEARS, Michael RESIGNED | Director | 20 Nov 1995 | 31 Mar 2004 | | March 1940 | Barton House 22 The Street, Kennington, Ashford, Kent, TN24 9HB |
| STALEY, Miriam Louise RESIGNED | Director | 08 Nov 2019 | 26 Jun 2025 | United Kingdom | August 1967 | 8, Fitzroy Street, London, W1T 4BJ, United Kingdom |
| WHITTLETON, David Arthur RESIGNED | Director | 01 Apr 2004 | 31 Mar 2017 | United Kingdom | May 1951 | 13 Fitzroy Street, London, W1T 4BQ |