| OAKWOOD CORPORATE SECRETARY LIMITED ACTIVE | Secretary | 01 Nov 2009 | | | | 3rd, Floor 1 Ashley Road, Altrincham, Cheshire, WA14 2DT |
| AHMED, Syed Waqas ACTIVE | Director | 23 Mar 2020 | | United Kingdom | November 1979 | 3rd Floor, 1 Ashley Road, Altrincham, Cheshire, WA14 2DT, United Kingdom |
| CAMERON, Euan Daney Ross ACTIVE | Director | 31 Oct 2018 | | United Kingdom | March 1976 | 3rd Floor, 1 Ashley Road, Altrincham, Cheshire, WA14 2DT, United Kingdom |
| GREEN, Georgina Adams ACTIVE | Director | 18 Apr 2024 | | United Kingdom | March 1970 | 102, Fountain Crescent, Paisley, Renfrewshire, PA4 9RE, United Kingdom |
| SMITH, Anthony Hugh ACTIVE | Director | 12 Nov 2018 | | United States | May 1962 | 3rd Floor, 1 Ashley Road, Altrincham, Cheshire, WA14 2DT, United Kingdom |
| STARR, Alison Jane ACTIVE | Director | 18 Apr 2024 | | United Kingdom | January 1977 | C/O Ppd Global Limited, Granta Park, Great Abington, Cambridge, CB21 6GQ, United Kingdom |
| GRAINGER, William Alan RESIGNED | Secretary | | 29 Nov 1993 | | | Willow Thatch, New Mill, Pewsey, Wiltshire, SN9 5LD |
| GREGG, Rhona RESIGNED | Secretary | 10 Sep 2015 | 31 Mar 2026 | | | 3rd Floor, 1 Ashley Road, Altrincham, Cheshire, WA14 2DT, United Kingdom |
| OSTLER, John Ramsdell RESIGNED | Secretary | 29 Nov 1993 | 07 Nov 1997 | | | Frampton Lodge, Icklingham Road, Cobham, Surrey, KT11 2NH |
| SNOWBALL, Simon John RESIGNED | Secretary | 07 Nov 1997 | 25 Sep 2006 | | | 19 The Cornfields, Hatch Warren, Basingstoke, Hampshire, RG22 4QB |
| WARD, Nicola Jane RESIGNED | Secretary | 07 Apr 2003 | 18 Dec 2014 | | | Solaar House, 19 Mercers Row, Cambridge, CB5 8BZ, England |
| A G SECRETARIAL LIMITED RESIGNED | Secretary | 07 Apr 2003 | 31 Oct 2009 | | | 100 Barbirolli Square, Manchester, M2 3AB |
| ATKINSON, Richard Henry RESIGNED | Director | 29 Nov 1993 | 26 May 1995 | | September 1952 | 7 Fieldhead Road, Wilmslow, Cheshire, SK9 2NJ |
| COLEY, James Robert Ewen RESIGNED | Director | 07 Apr 2003 | 18 Apr 2012 | United Kingdom | August 1960 | Solaar House, 19 Mercers Row, Cambridge, CB5 8BZ, United Kingdom |
| GRANT, Lucie Mary Katja RESIGNED | Director | 07 Feb 2013 | 03 Dec 2019 | United Kingdom | July 1976 | 3rd Floor, 1 Ashley Road, Altrincham, Cheshire, WA14 2DT, England |
| HENTKOWSKI, Larry Peter RESIGNED | Director | 31 Dec 1998 | 07 Apr 2003 | | December 1953 | 108 Windy Paint Drive, Marietta, Ohio 45750, Usa |
| INCE, Nicholas RESIGNED | Director | 10 Sep 2015 | 31 Oct 2018 | United Kingdom | December 1982 | 3rd Floor, 1 Ashley Road, Altrincham, Cheshire, WA14 2DT, United Kingdom |
| KEY, Brian Alan, Dr RESIGNED | Director | 29 Nov 1993 | 04 Jul 1997 | | September 1941 | 11 Llys Y Fron, Mold, Clwyd, CH7 1QZ |
| KONTTURI, Arto J RESIGNED | Director | | 29 Nov 1993 | | June 1947 | Vesatie 4, 36200 Kangasula, FOREIGN, Finland |
| LAING, Clive Andrew RESIGNED | Director | 17 Jul 2006 | 30 Apr 2007 | | June 1963 | Thermo Fisher Scientific, Solaar House, 19 Mercers Row, Cambridge, Cambridgeshire, CB5 8BY |
| LEE, Jeremy Stephen William RESIGNED | Director | 29 Nov 1993 | 07 Nov 1997 | United Kingdom | May 1960 | 10 Hodge Fold, Broadbottom, Cheshire, SK14 6BL |
| MEADOWS, David RESIGNED | Director | 21 Feb 2019 | 14 Apr 2020 | United States | August 1974 | 3rd Floor, 1 Ashley Road, Altrincham, Cheshire, WA14 2DT, United Kingdom |
| MOODIE, Iain Alasdair Keith RESIGNED | Director | 18 Apr 2012 | 07 Feb 2013 | England | March 1967 | Solaar House, 19 Mercers Row, Cambridge, CB5 8BZ, United Kingdom |
| MULHOLLAND, Niveen RESIGNED | Director | 11 Feb 2021 | 27 Jun 2022 | United States | January 1972 | 3rd Floor, 1 Ashley Road, Altrincham, Cheshire, WA14 2DT, United Kingdom |
| NORMAN, David John RESIGNED | Director | 16 Nov 2015 | 18 Apr 2024 | United Kingdom | December 1960 | 3rd Floor, 1 Ashley Road, Altrincham, Cheshire, WA14 2DT, United Kingdom |
| PERKINS, James Ian RESIGNED | Director | 07 Apr 2003 | 01 Dec 2004 | | December 1940 | 21 Almond Way, Lutterworth, Leicestershire, LE17 4XJ |
| ROSENGLUM, Lewis RESIGNED | Director | 20 Aug 1998 | 31 Dec 1998 | | February 1943 | 9 Hillsipe Place, Madison, Connecticut, 06443, Usa |
| STAMAS, Christopher William RESIGNED | Director | 07 Nov 1997 | 20 Aug 1998 | | February 1947 | 11 Hillside Road, Wellesey, Massachussets, 02181, United States Of America |
| TIPPINS, Richard Stanley, Dr RESIGNED | Director | | 10 May 2007 | | September 1953 | Thermo Fisher Scientific, Solaar House, 19 Mercers Row, Cambridge, Cambridgeshire, CB5 8BY |
| WEGELIUS, Toumas T RESIGNED | Director | | 01 Sep 1993 | | September 1957 | Noykkionpuro 10b, 02300 Espoo, FOREIGN, Finland |
| WHEELER, Kevin Neil RESIGNED | Director | 07 Apr 2003 | 16 Nov 2015 | United Kingdom | December 1958 | 3rd Floor, 1 Ashley Road, Altrincham, Cheshire, WA14 2DT, England |
| WRIGHT, Katie Rose RESIGNED | Director | 01 Dec 2010 | 04 Sep 2015 | United Kingdom | July 1982 | 3rd Floor, 1 Ashley Road, Altrincham, Cheshire, WA14 2DT, England |