| BOOKLESS, Edward ACTIVE | Director | 07 Aug 2024 | | United Kingdom | June 1983 | The Akzonobel Building, Wexham Road, Slough, SL2 5DS, United Kingdom |
| RAY, Stephen Bruce ACTIVE | Director | 31 Dec 2023 | | England | June 1962 | The Akzonobel Building, Wexham Road, Slough, SL2 5DS, United Kingdom |
| CARTER, Lynette Jean Cherryl RESIGNED | Secretary | 14 Jun 2017 | 31 May 2018 | | | The Akzonobel Building, Wexham Road, Slough, SL2 5DS, United Kingdom |
| CHEATLE, Penelope Anne RESIGNED | Secretary | 01 Jul 1999 | 18 Aug 2000 | | | 19 Wellsmoor Gardens, Bickley, Kent, BR1 2HT |
| CLARK, Lynda RESIGNED | Secretary | 01 Jul 1993 | 01 Jul 1999 | | | 2 Melton Road, Runcorn, Cheshire, WA7 4AH |
| HORLOCK, Elizabeth Ann RESIGNED | Secretary | 16 Jul 2007 | 12 Jun 2008 | | | 1 Barringer Court, London Street, Godmanchester, Huntingdon, Cambs, PE29 2HU |
| IRVINE, Scott Macdonald RESIGNED | Secretary | 14 Nov 2001 | 19 Jan 2004 | | | 69 Streatham Court, Streatham High Road, London, SW16 1DJ |
| PUGH, Kenneth RESIGNED | Secretary | | 01 Jul 1993 | | | 29 Tregarn Close, Langstone, Newport, Gwent, NP6 2JL |
| TURNER, George St John RESIGNED | Secretary | 18 May 2007 | 16 Jul 2007 | | | The Manse, Main Street, Bythorn, Cambridgeshire, PE28 0QR |
| WHITESIDE, Sonia Jane RESIGNED | Secretary | 18 Aug 2000 | 14 Nov 2001 | | | 139 Amhurst Road, London, E8 2AW |
| WINCHESTER, Emma RESIGNED | Secretary | 19 Jan 2004 | 18 May 2007 | | | The Coach House, 173a Merton Road, London, SW19 1EE |
| O.H. SECRETARIAT LIMITED RESIGNED | Secretary | 12 Jun 2008 | 14 Jun 2017 | | | The Akzonobel Building, Wexham Road, Slough, SL2 5DS, United Kingdom |
| ATTRILL, Geoffrey George RESIGNED | Director | 01 Jul 1993 | 01 Jul 1999 | | April 1954 | Ellwood, Cross Tree Lane, Hawarden, Deeside, CH5 3PY |
| CHEATLE, Penelope Anne RESIGNED | Director | 31 Oct 2000 | 18 Dec 2009 | | August 1953 | 26th, Floor, Portland House Bressenden Place, London, SW1E 5BG, United Kingdom |
| CHEATLE, Penelope Anne RESIGNED | Director | 01 Jul 1999 | 18 Aug 2000 | | August 1953 | 19 Wellsmoor Gardens, Bickley, Kent, BR1 2HT |
| CLARK, Lynda RESIGNED | Director | 01 Jul 1993 | 01 Jul 1999 | | July 1949 | 2 Melton Road, Runcorn, Cheshire, WA7 4AH |
| DEVIN, Mark RESIGNED | Director | 18 Aug 2000 | 31 Oct 2000 | | April 1959 | 2 The Green, Bishops Stortford, Hertfordshire, CM23 3ER |
| DINNAGE, Louise Margaret RESIGNED | Director | 23 Apr 2015 | 21 Mar 2022 | United Kingdom | November 1970 | The Akzonobel Building, Wexham Road, Slough, SL2 5DS, United Kingdom |
| DOUGLAS, David Stewart Paterson RESIGNED | Director | | 01 Jul 1993 | | October 1948 | 133 Schransdreef, 3090 Overijse, Belgium |
| FREW, Alan Dalziel RESIGNED | Director | 01 Jul 1993 | 31 Oct 1993 | | September 1948 | The White House, Chinnor Road, Bledlow Ridge, Buckinghamshire, HP14 4AA |
| GROSSET, Margaret Wilhelmina RESIGNED | Director | 01 Jul 1999 | 18 Aug 2000 | | October 1951 | 7 Arnprior Place, Alloway, Ayrshire, KA7 4PT |
| HAMLETT, Stephen RESIGNED | Director | | 01 Jul 1993 | United Kingdom | June 1952 | Nutcombe, Miles Lane, Cobham, Surrey, KT11 2EE |
| HORLOCK, Elizabeth Ann RESIGNED | Director | 16 Jul 2007 | 12 Jun 2008 | | October 1979 | 1 Barringer Court, London Street, Godmanchester, Huntingdon, Cambs, PE29 2HU |
| IRVINE, Scott Macdonald RESIGNED | Director | 14 Nov 2001 | 19 Jan 2004 | | February 1973 | 69 Streatham Court, Streatham High Road, London, SW16 1DJ |
| PUGH, Kenneth RESIGNED | Director | | 01 Jul 1993 | | February 1946 | 29 Tregarn Close, Langstone, Newport, Gwent, NP6 2JL |
| SMALLEY, Michael RESIGNED | Director | 25 Feb 2015 | 07 May 2024 | England | November 1958 | The Akzonobel Building, Wexham Road, Slough, SL2 5DS, United Kingdom |
| TURNER, David Allan, Mr. RESIGNED | Director | 18 Dec 2009 | 20 Apr 2015 | United Kingdom | November 1971 | 26th, Floor, Portland House Bressenden Place, London, SW1E 5BG, United Kingdom |
| TURNER, George St John RESIGNED | Director | 18 May 2007 | 16 Jul 2007 | | February 1971 | The Manse, Main Street, Bythorn, Cambridgeshire, PE28 0QR |
| WHITESIDE, Sonia Jane RESIGNED | Director | 18 Aug 2000 | 14 Nov 2001 | | March 1971 | 139 Amhurst Road, London, E8 2AW |
| WILLIAMS, Benjamin RESIGNED | Director | 21 Mar 2022 | 31 Dec 2023 | United Kingdom | June 1986 | The Akzonobel Building, Wexham Road, Slough, SL2 5DS, United Kingdom |
| WINCHESTER, Emma RESIGNED | Director | 19 Jan 2004 | 18 May 2007 | | June 1977 | The Coach House, 173a Merton Road, London, SW19 1EE |
| O.H. DIRECTOR LIMITED RESIGNED | Director | 12 Jun 2008 | 25 Feb 2015 | | | 26th, Floor, Portland House Bressenden Place, London, SW1E 5BG, United Kingdom |