| AARONS, Matthew David Edward ACTIVE | Director | 13 Jan 2011 | | England | August 1969 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, England |
| ARPINO, Timothy ACTIVE | Director | 08 Dec 2011 | | England | November 1961 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, England |
| BISCAGLIA, Bernardo ACTIVE | Director | 16 Jul 2025 | | England | May 1987 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, England |
| CHETWYND, Amanda Gillian, Professor ACTIVE | Director | 21 Jun 2022 | | England | March 1955 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, England |
| GILDEA, James ACTIVE | Director | 27 Feb 2024 | | England | May 1953 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, England |
| HOPKINS, Amanda Margaret ACTIVE | Director | 09 Apr 2013 | | England | July 1956 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, England |
| HUYNH, Florence ACTIVE | Director | 01 Dec 2025 | | England | October 1993 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, United Kingdom |
| LUIS, Emily Elizabeth ACTIVE | Director | 24 Apr 2023 | | England | February 1977 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, England |
| WHITTAKER, Robin ACTIVE | Director | 12 May 2009 | | England | August 1966 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, England |
| HARDING, Michael John RESIGNED | Secretary | 03 Mar 2004 | 08 Mar 2007 | | | 16 West Meads, Horley, Surrey, RH6 9AF |
| HOBBS, Kelly RESIGNED | Secretary | 02 Feb 2011 | 30 Sep 2013 | | | Marlborough House, 298 Regents Park Road, Finchley Central, London, N3 2UU, England |
| SHAH, Kirit RESIGNED | Secretary | 26 Sep 2001 | 26 Feb 2004 | | | 85 Shirland Road, London, W9 2EL |
| WHITE, Terence Robert RESIGNED | Secretary | 08 Mar 2007 | 01 Feb 2011 | | | Marlborough House, 298 Regents Park Road, London, N3 2UU |
| CRABTREE PM LIMITED RESIGNED | Secretary | 08 Mar 2007 | 30 Sep 2013 | | | Marlborough House, 298 Regents Park Road, London, N3 2UU |
| QA REGISTRARS LIMITED RESIGNED | Nominee Secretary | 26 Sep 2001 | 26 Sep 2001 | | | The Studio, St Nicholas Close, Elstree, Hertfordshire, WD6 3EW |
| ALLISTON, Michael Charles RESIGNED | Director | 18 Sep 2017 | 15 Nov 2020 | England | February 1983 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, England |
| BESTER, Andreas Jacobus RESIGNED | Director | 09 Dec 2012 | 09 Jun 2014 | England | November 1975 | 28, Ealing Village, London, W5 2LZ, England |
| BILLINGTON, Philippa Anne RESIGNED | Director | 01 Dec 2025 | 01 May 2026 | England | September 1963 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, United Kingdom |
| CALEB, David Anthony RESIGNED | Director | 14 Sep 2004 | 10 Sep 2010 | | May 1950 | 41 Camborne Avenue, London, W13 9QZ |
| CARROLL, Claire Louise RESIGNED | Director | 28 Oct 2002 | 02 Jun 2003 | | January 1962 | 101 Ealing Village, London, W5 2EB |
| CAWOOD, Erica Louise RESIGNED | Director | 27 Jan 2014 | 14 Sep 2020 | England | October 1982 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, England |
| CAWOOD, Hendrik Petrus RESIGNED | Director | 14 Sep 2020 | 19 Apr 2022 | England | October 1972 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, United Kingdom |
| CHOUDHRY, Sarah Jane RESIGNED | Director | 13 Dec 2012 | 18 Sep 2017 | England | October 1979 | 59-60, Russell Square, London, WC1B 4HP |
| DADARKAR, Janhavi RESIGNED | Director | 12 May 2015 | 18 Nov 2019 | England | August 1974 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, England |
| DAVIES, Anthony John RESIGNED | Director | 28 Oct 2002 | 24 Oct 2003 | | December 1971 | 9 Ealing Village, London, W5 2LY |
| DEANE, Jennifer RESIGNED | Director | 11 Sep 2007 | 11 Nov 2010 | | October 1962 | 96 Ealing Village, Ealing, London, W5 2EA |
| DELCIAPPO, Daniele Jeanne RESIGNED | Director | 28 Oct 2002 | 07 Jun 2006 | | November 1936 | 92 Ealing Village, Ealing, London, Middlesex, W5 2EA |
| DUBY, Lior RESIGNED | Director | 12 May 2009 | 31 Dec 2012 | England | August 1974 | 53, Ealing Village, Ealing, London, W5 2NB |
| EDWARDS, Renea RESIGNED | Director | 09 Aug 2016 | 18 Nov 2019 | England | September 1962 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, England |
| FRENCH, Thomas William Vernon RESIGNED | Director | 11 Jul 2016 | 21 Apr 2026 | United Kingdom | November 1983 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, England |
| HENDERSON, Stephen Charles RESIGNED | Director | 26 Sep 2001 | 10 Nov 2010 | United Kingdom | May 1951 | 107 Ealing Village, London, W5 2EB |
| HONE, Robert Leslie RESIGNED | Director | 09 Dec 2012 | 22 Apr 2014 | England | February 1966 | 23, Ealing Village, London, W5 2LY, England |
| JOHNSON, Daniel Martin RESIGNED | Director | 09 Sep 2010 | 06 Jun 2015 | United Kingdom | March 1967 | 93, Ealing Village, Ealing, London, W5 2EA |
| LOWE, Timothy Carlton RESIGNED | Director | 20 May 2014 | 18 Nov 2020 | England | April 1963 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, England |
| MALCOLM, Sarah RESIGNED | Director | 07 Jun 2006 | 08 Mar 2012 | United Kingdom | April 1966 | 94 Ealing Village, Ealing, London, W5 2EA |
| MASON, Penelope Catherine RESIGNED | Director | 28 Oct 2002 | 07 Dec 2003 | | August 1947 | 106 Ealing Village, Ealing, London, W5 2EB |
| MCCARTNEY, Sarah RESIGNED | Director | 26 Sep 2001 | 04 Sep 2007 | | March 1960 | 25 Ealing Village, London, W5 2LY |
| MEREDITH, Amanda RESIGNED | Director | 07 Jun 2006 | 23 Oct 2007 | | May 1975 | 128 Ealing Village, London, W5 2EB |
| MOORE, John Henry RESIGNED | Director | 26 Sep 2001 | 11 Sep 2007 | United Kingdom | November 1950 | 125 Ealing Village, Ealing, London, W5 2EB |
| MORRIN, Bruce Cameron RESIGNED | Director | 12 May 2015 | 18 Sep 2017 | United Kingdom | June 1973 | 59-60, Russell Square, London, WC1B 4HP, England |
| OLNEY, Jack, Dr RESIGNED | Director | 11 Mar 2019 | 09 Sep 2020 | United Kingdom | May 1989 | C/O Bishop & Sewell Llp, 59-60, Russell Square, London, WC1B 4HP, England |
| PEARCE, Francis Charles Spruce RESIGNED | Director | 07 Oct 2003 | 16 Dec 2012 | | July 1956 | 119 Ealing Village, London, W5 2EB |
| SANGHA, Balbir Kaur RESIGNED | Director | 09 Apr 2013 | 14 Apr 2015 | United Kingdom | June 1966 | 121, Cheesemans Terrace, London, W14 9XT, England |
| SQUIRE, John Richard RESIGNED | Director | 14 Jun 2012 | 27 Jan 2014 | England | December 1955 | 44, Ealing Village, Ealing, London, W5 2LZ, United Kingdom |
| STEELE, Caroline Jane RESIGNED | Director | 09 Apr 2013 | 11 Jul 2016 | United Kingdom | January 1962 | 59-60, Russell Square, London, WC1B 4HP |
| VACHELL, Andrew Stephen Annesley RESIGNED | Director | 11 Dec 2007 | 12 May 2009 | | March 1974 | 74 Ealing Village, London, W5 2EA |
| WALSH, Caroline Elizabeth RESIGNED | Director | 07 Oct 2003 | 07 Jun 2006 | | November 1963 | 99 Ealing Village, Ealing, London, W5 2EB |
| QA NOMINEES LIMITED RESIGNED | Nominee Director | 26 Sep 2001 | 26 Sep 2001 | | | The Studio, St Nicholas Close, Elstree, Hertfordshire, WD6 3EW |