| SHANKEY, Rosemary Eva ACTIVE | Secretary | 27 Jun 2025 | | | | Pentlands Science Park, Bush Loan, Penicuik, EH26 0PZ, Scotland |
| DONACHIE, William ACTIVE | Director | 05 Aug 1997 | | United Kingdom | May 1951 | Pentlands Science Park, Bush Loan, Penicuik, EH26 0PZ, Scotland |
| JEFFRIES, Peter John, Doctor ACTIVE | Director | 06 Mar 2014 | | Scotland | September 1956 | Pentlands Science Park, Bush Loan, Penicuik, EH26 0PZ, Scotland |
| MACDONALD, Rhona Mary ACTIVE | Director | 01 Mar 2023 | | Scotland | January 1964 | Pentlands Science Park, Bush Loan, Penicuik, EH26 0PZ, Scotland |
| MACKINNON, John Duncan, Dr ACTIVE | Director | 13 Jan 2005 | | England | May 1948 | Pentlands Science Park, Bush Loan, Penicuik, EH26 0PZ, Scotland |
| MCNEILLY, Tom Nathan, Dr ACTIVE | Director | 01 Oct 2023 | | Scotland | February 1974 | Pentlands Science Park, Bush Loan, Penicuik, EH26 0PZ, Scotland |
| MORGAN, Diana, Dr ACTIVE | Director | 04 Sep 2013 | | Scotland | February 1953 | Pentlands Science Park, Bush Loan, Penicuik, EH26 0PZ, Scotland |
| RODGER, Hamish, Dr ACTIVE | Director | 02 Sep 2026 | | Ireland | June 1961 | Pentlands Science Park, Bush Loan, Penicuik, EH26 0PZ, Scotland |
| SHEPHERD, Christopher Jonathan, Dr ACTIVE | Director | 03 Jun 2020 | | England | October 1946 | Pentlands Science Park, Bush Loan, Penicuik, EH26 0PZ, Scotland |
| BURNETT, Colin Neil RESIGNED | Secretary | 24 Jan 2001 | 27 Jun 2025 | | | Pentlands Science Park, Bush Loan, Penicuik, EH26 0PZ, Scotland |
| MACKENZIE, Murdo John RESIGNED | Secretary | | 24 Jan 2001 | | | 110 Braid Road, Edinburgh, Midlothian, EH10 6AT |
| AITKEN, Ian Douglas RESIGNED | Director | | 01 Jul 1997 | | November 1934 | 9 Abbotsford Park, Edinburgh, Midlothian, EH10 5DX |
| BRAMLEY, Paul Scotson, Dr RESIGNED | Director | 13 Dec 2000 | 03 Dec 2008 | England | May 1940 | Dene House, Little Salkeld, Penrith, Cumbria, CA10 1NN |
| BROWNLIE, John, Professor RESIGNED | Director | 01 Apr 2001 | 07 Dec 2005 | | January 1944 | 32 Bluebridge Road, Brookmans Park, Hatfield, Hertfordshire, AL9 7SA |
| DANSON, David Laurence George, Dr RESIGNED | Director | 13 Dec 2000 | 31 Dec 2019 | England | September 1945 | Pentlands Science Park, Bush Loan, Penicuick, EH26 0PZ |
| ESCALA, Juan Maria RESIGNED | Director | 08 Jun 2000 | 09 Jan 2011 | Scotland | June 1966 | Pentlands Science Park, Bush Loan, Penicuick, EH26 0PZ |
| FITZPATRICK, Julie Lydia, Professor RESIGNED | Director | 01 Dec 2004 | 30 Sep 2023 | Scotland | March 1960 | Pentlands Science Park, Bush Loan, Penicuik, EH26 0PZ, Scotland |
| GRAY, George Bovill Rennie RESIGNED | Director | | 05 Aug 1997 | | March 1920 | Smeaton, East Linton, East Lothian, EH40 3DT |
| HAMILTON, Loudon Pearson RESIGNED | Director | 01 Sep 1992 | 24 Jan 2001 | | January 1932 | 8a Dick Place, Edinburgh, EH9 2JL |
| HARLECH JONES, Peter Glynne, Dr RESIGNED | Director | 07 Sep 2016 | 31 Dec 2024 | Wales | August 1947 | Pentlands Science Park, Bush Loan, Penicuik, EH26 0PZ, Scotland |
| IZAT, Alexander John Rennie RESIGNED | Director | 01 Sep 1992 | 05 Aug 1997 | England | July 1932 | High, Cocklaw, Berwick-Upon-Tweed, TD15 1UZ |
| JEFFREY, James RESIGNED | Director | | 10 Jun 1993 | | September 1926 | Kersknowe, Kelso, TD5 8AA |
| LENNOX, Robert John RESIGNED | Director | | 05 Aug 1997 | United Kingdom | May 1925 | Shemore, Luss, Alexandria, G83 8RH |
| MACKENZIE, Murdo John RESIGNED | Director | | 06 Jul 1998 | | June 1950 | 110 Braid Road, Edinburgh, Midlothian, EH10 6AT |
| MARSHALL, Jonathon James Alexander, Dr RESIGNED | Director | 07 Sep 2016 | 17 Jul 2020 | Scotland | May 1960 | Pentlands Science Park, Bush Loan, Penicuick, EH26 0PZ |
| MCKELLAR, Quintin Archibald, Professor RESIGNED | Director | 05 Aug 1997 | 18 Jun 2004 | | December 1958 | 8 Broomie Knowe, Lasswade |
| MURRAY, John Edward RESIGNED | Director | 01 Jan 2015 | 06 Jan 2023 | Scotland | March 1963 | Pentlands Science Park, Bush Loan, Penicuick, EH26 0PZ |
| OLIVER, Joanna Jane, Dr RESIGNED | Director | 05 Aug 1997 | 31 Mar 2000 | Scotland | June 1962 | 12 Bellfield Crescent, Eddleston, Peebles, Borders, EH45 8RQ |
| PRESTON, John Michael, Professor RESIGNED | Director | 13 Jan 2005 | 07 Sep 2016 | England | September 1946 | Pentlands Science Park, Bush Loan, Penicuick, EH26 0PZ |
| STOBO, James RESIGNED | Director | | 28 Sep 2000 | Gb-Sct | December 1934 | Knapdene House, Nabdean, Berwick Upon Tweed, TD15 1SZ |
| STUBBINGS, Lesley Ann RESIGNED | Director | 05 Nov 1998 | 08 Sep 2004 | | April 1958 | Saddletrees 3 Fullers Close, Aldwincle, Kettering, Northamptonshire, NN14 3UU, England |
| VAN DEN BROEK, Peter, Dr RESIGNED | Director | 01 Mar 1990 | 05 Aug 1997 | | September 1942 | The Old Station, Wotton Underwood, Aylesbury, Buckinghamshire, HP18 0SD |
| WELLS, Peter William, Professor RESIGNED | Director | 03 Sep 2008 | 07 Sep 2016 | Scotland | February 1946 | Pentlands Science Park, Bush Loan, Penicuick, EH26 0PZ |