| CASAGRANDE, Henrique Augusto ACTIVE | Director | 31 Jan 2026 | | England | March 1977 | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AJ |
| LITVIN, Dionna Kathleen ACTIVE | Director | 31 Oct 2023 | | United Kingdom | August 1970 | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AJ |
| O'SHAUGHNESSY, Peter James ACTIVE | Director | 01 Jul 2026 | | United Kingdom | June 1970 | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AJ |
| BOUW, Andreas Johannes Louis Maria RESIGNED | Secretary | 18 Apr 2005 | 16 Mar 2007 | | | Intervet Uk Limited, Walton Manor Walton, Milton Keynes, Buckinghamshire, MK7 7AJ |
| BURWOOD, Alan Edward RESIGNED | Secretary | 07 Oct 2002 | 18 Apr 2005 | | | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AW |
| DAVIES, William Robert RESIGNED | Secretary | 13 May 1996 | 07 Oct 2002 | | | Chatton House, 165 Park Road, Teddington, Middlesex, TW11 0BP |
| PLAYFORD, Richard RESIGNED | Secretary | 16 Mar 2007 | 05 Dec 2008 | | | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AW |
| VAN HEUMEN, Marcus RESIGNED | Secretary | 05 Dec 2008 | 31 Jan 2013 | | | 3, Falcon Way, Welwyn Garden City, Hertfordshire, AL7 1TW |
| SWIFT INCORPORATIONS LIMITED RESIGNED | Nominee Secretary | 13 May 1996 | 13 May 1996 | | | 26, Church Street, London, NW8 8EP |
| BATTISON, John Robert RESIGNED | Director | 17 Feb 2000 | 01 Apr 2002 | | October 1949 | The Old School House Bucks Lane, Little Eversden, Cambridge, Cambridgeshire, CB3 7HL |
| BOLCSKEI, Andras RESIGNED | Director | 25 Sep 2012 | 01 Oct 2015 | Belgium | March 1966 | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AJ |
| CAN TEMUCIN, Ebru RESIGNED | Director | 05 Jul 2018 | 01 Jul 2026 | United Kingdom | October 1972 | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AJ |
| CASADY, Paul Stoughton RESIGNED | Director | 01 Apr 2002 | 01 Dec 2005 | | November 1956 | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AW |
| COLLINS, Keith Robert RESIGNED | Director | 28 Jun 1996 | 01 Oct 2001 | | November 1954 | Parkstrasse 57 Ug, Wiesbaden, D65189, Germany |
| COSTA, Andrea Frances RESIGNED | Director | 11 Dec 2014 | 05 Jul 2018 | United Kingdom | July 1974 | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AJ |
| DAVIES, William Robert RESIGNED | Director | 13 May 1996 | 28 Jun 1996 | | March 1945 | Chatton House, 165 Park Road, Teddington, Middlesex, TW11 0BP |
| DEMETRIOU, Michale Sotiris RESIGNED | Director | 06 Jun 1996 | 28 Jun 1996 | | March 1941 | Sagamore House Hedgerley Lane, Gerrards Cross, Buckinghamshire, SL9 7NP |
| DORNAUER, Horst Werner Konrad, Dr RESIGNED | Director | 28 Jun 1996 | 05 Mar 1998 | | September 1941 | Oranienstrasse 78, D-65812 Bad Soden Am T's, Germany |
| EHREN, Stijn Michiel RESIGNED | Director | 05 Dec 2008 | 13 Dec 2011 | Netherlands | April 1968 | 3, Falcon Way, Welwyn Garden City, Hertfordshire, AL7 1TW |
| HAGGIS, Robert Arthur RESIGNED | Director | 13 May 1996 | 28 Jun 1996 | | March 1954 | 28 Milverton Crescent, Leamington Spa, Coventry, CV32 5NJ |
| HALLAS, David Charles RESIGNED | Director | 05 Dec 2008 | 25 Sep 2012 | United Kingdom | September 1964 | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AJ |
| HARBERG JR., Allen RESIGNED | Director | 31 Jan 2013 | 03 Jun 2019 | United States | March 1971 | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AJ |
| HILADO, Maria Teresa RESIGNED | Director | 05 Dec 2008 | 02 Jul 2009 | | June 1964 | 3, Falcon Way, Welwyn Garden City, Hertfordshire, AL7 1TW |
| KOEHLER, Steven Hubrig RESIGNED | Director | 05 Dec 2008 | 22 Jul 2011 | Usa | August 1950 | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AJ |
| LANZ CANDURIN, Helene Tatiana RESIGNED | Director | 01 Aug 2024 | 31 Jan 2026 | England | September 1973 | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AJ |
| MCCOY JR., Barry Lee RESIGNED | Director | 03 Jun 2019 | 31 Oct 2023 | United States | May 1976 | 2, Giralda Farms, Madison, NJ 07940, United States |
| MCDOWELL, Mark Andrew Charles RESIGNED | Director | 13 Dec 2011 | 31 Dec 2013 | United Kingdom | January 1955 | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AJ |
| MEISLOCH, Karsten Clemens RESIGNED | Director | 10 Feb 2012 | 11 Dec 2014 | United Kingdom | November 1974 | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AJ, United Kingdom |
| MOEHLENBROCK, Jan RESIGNED | Director | 24 Jan 2017 | 01 Aug 2024 | England | October 1970 | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AJ, United Kingdom |
| READ, Peter Robert, Dr RESIGNED | Director | 28 Jun 1996 | 26 Nov 1999 | Uk | January 1939 | Marchfields, 6 Ashley Hill Place,, Cockpole Green, Wargrave, Berkshire, RG10 8NL |
| RICHARDS, Peter RESIGNED | Director | 28 Jun 1996 | 31 Jan 2000 | | September 1946 | Coniston Lodge, 19a Augusta Avenue, Northampton, Northamptonshire, NN4 0XP |
| STOLP, Ruurd RESIGNED | Director | 01 Oct 2001 | 05 Dec 2008 | | July 1954 | PO BOX 20980 Oriel House, 16 Connaught Place, London, W2 2ZB |
| VAN HEUMEN, Marcus Joespha Maria RESIGNED | Director | 10 Feb 2012 | 31 Jan 2013 | The Netherlands | June 1966 | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AJ |
| VARVELLA VICENTE, Mauricio RESIGNED | Director | 01 Oct 2015 | 24 Jan 2017 | Italy | October 1969 | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AJ, United Kingdom |
| WETTERHAHN, Pieter Paulus RESIGNED | Director | 01 Dec 2005 | 12 Jun 2008 | | July 1958 | Walton Manor, Walton, Milton Keynes, Buckinghamshire, MK7 7AW |