| NICHOLLS, Nigel Roy ACTIVE | Director | 01 Apr 2022 | | United States | September 1965 | 8, Fitzroy Street, London, W1T 4BJ, United Kingdom |
| POIRIER, Carolyn ACTIVE | Director | 31 Jul 2025 | | Canada | November 1984 | 8, Fitzroy Street, London, W1T 4BJ, United Kingdom |
| RUSSELL, Scott Alan ACTIVE | Director | 31 Jul 2025 | | United States | August 1966 | 900, Wilshire Boulevard, 19th Floor, California, CA 90017, United States |
| SHAKESPEARE, Vanessa Jane RESIGNED | Secretary | 02 Nov 2015 | 01 Jul 2022 | | | 8, Fitzroy Street, London, W1T 4BJ, United Kingdom |
| SOMERS, Michael John RESIGNED | Secretary | | 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 |
| ARGIRIS, Leo Elias RESIGNED | Director | 01 Apr 2004 | 31 Mar 2022 | United States | August 1962 | 77, Water Street, New York, NY 10005, United States |
| BARKER, Charles Thomas RESIGNED | Director | 01 Apr 1993 | 06 Jul 1998 | | July 1936 | West Cottage, Frieth, Henley On Thames, Oxfordshire, RG9 6PG |
| COUGHLAN, Paul Anthony RESIGNED | Director | 16 Sep 2019 | 31 Jul 2025 | Netherlands | November 1965 | 8, Fitzroy Street, London, W1T 4BJ, United Kingdom |
| COUSINS, Fiona Mary RESIGNED | Director | 01 Apr 2022 | 31 Jul 2025 | United States | October 1967 | 8, Fitzroy Street, London, W1T 4BJ, United Kingdom |
| CRANE, Raymond RESIGNED | Director | 01 Apr 1995 | 16 Nov 2001 | | February 1956 | 329 Sound Beach Avenue, Old Greenwich Ct 06870, Usa, FOREIGN |
| DILLEY, Philip Graham, Sir RESIGNED | Director | 01 Apr 2009 | 31 Mar 2014 | United Kingdom | February 1955 | 13 Fitzroy Street, London, W1T 4BQ |
| EMMERSON, Robert Frank RESIGNED | Director | 27 Sep 1993 | 31 Mar 2004 | | October 1938 | 42 Nassau Road, London, SW13 9QE |
| FITZPATRICK, Anthony James RESIGNED | Director | | 26 Jul 2003 | | June 1951 | 2279 Mar East, Tiburon, California 94920, U S A |
| HILL, Terence Malcolm RESIGNED | Director | 01 Apr 2004 | 31 Mar 2009 | United Kingdom | June 1948 | 49 Lancaster Road, St Albans, Hertfordshire, AL1 4EP |
| HODKINSON, Gregory Scott RESIGNED | Director | 01 Apr 2014 | 31 Dec 2016 | United Kingdom | June 1955 | 13 Fitzroy Street, London, W1T 4BQ |
| HODKINSON, Gregory Scott RESIGNED | Director | | 23 Sep 2011 | United States | June 1955 | 13 Fitzroy Street, London, W1T 4BQ |
| HOWARD, Andrew Simon RESIGNED | Director | 17 Oct 2008 | 31 Mar 2022 | United States | December 1964 | 12777, West Jefferson Boulevard, Los Angeles, California, 90066, United States |
| MICHAEL, Duncan, Dr RESIGNED | Director | | 31 Mar 1995 | | May 1937 | 21 Marryat Road, London, SW19 5BB |
| RAMAN, Mahadev RESIGNED | Director | 01 Apr 1995 | 31 Dec 2016 | United States | February 1957 | Arup, 77 Water Street, New York, NY 10005, Usa |
| TWEEDIE, Matthew Stuart RESIGNED | Director | 01 Jan 2017 | 30 Aug 2019 | United Kingdom | December 1971 | 13 Fitzroy Street, London, W1T 4BQ |