| BUSCH, Albert ACTIVE | Director | 01 Oct 2008 | | United States | March 1972 | 5, Princess Rd, Lawrenceville, Nj 08648, Usa |
| HEDIGER, Philipp Andre ACTIVE | Director | 01 Dec 2018 | | Switzerland | July 1975 | Grundstrasse 12, 6343, Rotkreuz, Switzerland |
| MAY, Eszter ACTIVE | Director | 12 Dec 2019 | | Switzerland | July 1976 | Grundstrasse 12, 6343, Rotkreuz, Switzerland |
| VRIJDERS, Winge Sabine Marcella Monique ACTIVE | Director | 20 Sep 2022 | | Belgium | August 1980 | Suite 11, Unit 16, Leeway Estate, Newport, Gwent, Wales, NP19 4SL, United Kingdom |
| BLOECHLINGER, Urs Peter, Mr. RESIGNED | Secretary | 07 Jul 2009 | 01 Oct 2013 | | | 7, Mythenweg, 8634 Hombrechtikon, Zurich, Switzerland |
| GOODY, George Thomas RESIGNED | Secretary | | 13 Jul 1992 | | | 9 Pointers Close, Chieveley, Newbury, Berkshire, RG16 8UJ |
| HILL, Barry Robert Trevor RESIGNED | Secretary | 13 Jul 1992 | 28 Feb 1994 | | | Chagres, Bowmans Close, Burnham, Buckinghamshire, SL1 8LW |
| HOLLAND, Sue RESIGNED | Secretary | 01 Mar 1994 | 28 Apr 1995 | | | 26 Woodland Road, Patney, Devizes, Wiltshire, SN10 3RG |
| HUDSON, David Charles RESIGNED | Secretary | 01 May 2002 | 20 Aug 2009 | | | 6 Henley Avenue, Knypersley, Staffordshire, ST8 6NX |
| HUG, Markus Peter, Lic Rer Pol RESIGNED | Secretary | 01 Aug 2011 | 29 May 2012 | | | 11, Kreuzmattstrasse, Bremgarten, Switzerland, 5620, Switzerland |
| ROBINSON, Stephen Paul RESIGNED | Secretary | 28 Apr 1995 | 01 May 2002 | | | Lane End, Attenburys Lane, Altrincham, Cheshire, WA14 5QN |
| WAY, John Richard RESIGNED | Secretary | 15 Aug 2013 | 27 Apr 2015 | | | 5, Princess Rd, Lawrenceville, New Jersey 08648, Usa |
| ZOHLMAN, Theresa RESIGNED | Secretary | 28 Apr 2015 | 19 Jun 2020 | | | 5, Princess Road, Lawrenceville, New Jersey, United States |
| ANDERSON, Graham RESIGNED | Director | | 31 Jan 1992 | | September 1941 | Meadowview, Leasemore, Newbury, Berkshire, RG16 0JF |
| BAMFORTH, John Richard, Dr RESIGNED | Director | 28 Jun 1993 | 01 May 2002 | United Kingdom | December 1950 | Holmcroft, 24 Elm Tree Road, Lymm, Cheshire, WA13 0NH |
| BATTLE, David RESIGNED | Director | | 31 Jan 1992 | | February 1954 | 2 Kempton Close, Greenham, Newbury, Berkshire, RG14 7RS |
| BEST, Roger Philip RESIGNED | Director | | 31 Jan 1992 | | May 1919 | West Ridgeway, Hampstead Morris, Newbury, Berks |
| BODENMANN, Andreas RESIGNED | Director | 31 Jan 1992 | 27 May 1994 | | December 1956 | Herrengasse 52, Schwyz, Switzerland Ch6430 |
| BRINSMEAD, Alan RESIGNED | Director | | 31 Jan 1992 | | November 1954 | 31 Green Acres, Woolton Hill, Newbury, Berks, RG15 9TA |
| BUHLER, Christian RESIGNED | Director | 01 Jun 1994 | 31 Dec 1995 | | March 1952 | Schmitten Acker, Strasse 7, 8304 Wallisellen, Switzerland |
| CROOKS, Thomas RESIGNED | Director | 01 May 2002 | 01 Nov 2002 | | February 1966 | 42 Cypress Lane, Cedar Run Nj 08092, Usa |
| CROZIER, David RESIGNED | Director | 20 Feb 1998 | 09 Jul 2002 | | May 1958 | 1312 Jacob Drive, Yardley, Pennsylvania, 19067, Usa |
| DOBLER, Stefan RESIGNED | Director | 01 Oct 2008 | 30 Nov 2009 | Switzerland | March 1972 | 5, Steistegstrasse, Schwyz, 6430, Switzerland |
| DOWNES, Terry L RESIGNED | Director | 08 Dec 2004 | 30 Sep 2008 | | August 1945 | 37 Northrup Court, Newtown, Pa, 18940, Usa |
| EARNSHAW, Susan RESIGNED | Director | | 08 Mar 1995 | | February 1947 | 29 Reading Road, Chineham, Basingstoke, Hampshire, RG24 8LN |
| HILL, Barry Robert Trevor RESIGNED | Director | 31 Jan 1992 | 28 Feb 1994 | | December 1942 | Chagres, Bowmans Close, Burnham, Buckinghamshire, SL1 8LW |
| HUWILER, Marco RESIGNED | Director | 20 Sep 2022 | 20 Dec 2023 | Switzerland | February 1981 | Suite 11, Unit 16, Leeway Estate, Newport, Gwent, Wales, NP19 4SL, United Kingdom |
| ITA, Hans Rudolf RESIGNED | Director | 08 Dec 2004 | 01 Aug 2006 | | December 1944 | 849 Wickham Way, Ridgewood Nj 07450, Bergen, FOREIGN, Usa |
| KLEEB, Roland RESIGNED | Director | 01 Nov 2002 | 30 Sep 2008 | | April 1966 | Fachstreet 30, Oberrieden, 8942, Switzerland |
| LEUCHTMANN, Mark Oliver, Dr. RESIGNED | Director | 01 Dec 2009 | 31 Dec 2016 | Switzerland | December 1972 | The Weston Centre, Weston Road, Crewe, CW1 6FL, England |
| LIMACHER, Rene RESIGNED | Director | 20 Feb 1998 | 30 Jun 2000 | | January 1961 | 985 Plow Share Road, Yardley, Pensylvania, 19067, Usa |
| PANG, Jonathan C RESIGNED | Director | 30 Jun 2000 | 01 May 2002 | | May 1951 | 8 Hyacinth Court, Newtown, 18940, Pa Usa |
| TAVEL, Olivier RESIGNED | Director | 23 Mar 1995 | 23 Feb 1998 | | September 1958 | 4 Chemin Bief A Dance, Ch 1227 Carouge, Switzerland |
| VAN DER LAAN, Annet RESIGNED | Director | 20 Mar 2017 | 31 Jan 2019 | Switzerland | October 1972 | Datacolor Ag Europe, Loorenstrasse 9, Ch 8305, Dietlikon, Switzerland |
| VAN DER SLUYS, Gerardus Dingeman RESIGNED | Director | 25 Jun 1993 | 31 Aug 1994 | | May 1952 | Auwiesenstrasse 32, Abtwil, Ch903, Switzerland |
| WHITTAKER, James Nigel RESIGNED | Director | 31 Jan 1992 | 28 Jun 1993 | | June 1943 | 1 Holme Close, Earby, Colne, Lancashire, BB8 6UG |