| DAVIS, John ACTIVE | Secretary | 31 Aug 2011 | | | | Techone Suite 501, 440 Burroughs, Detroit, Mi, 48202-3420, Usa |
| COGGINS, Peter Bailey, Dr ACTIVE | Director | 09 Jun 2012 | | Wales | December 1948 | The Walled Garden, Glyn-Y-Mel Road, Lower Town, Fishguard, Dyfed, SA65 9LY, United Kingdom |
| DAVIS, John ACTIVE | Director | 31 Aug 2011 | | Usa | September 1941 | Techone Suite 501, 440 Burroughs, Detroit, Mi, 48202-3420, Usa |
| BAXTER, Carol, Dr RESIGNED | Secretary | 21 Oct 1995 | 16 Feb 1996 | | | 16 Birchall Lane, Cole Green, Hertford, Hertfordshire, SG14 2NR |
| BAXTER, Gordon Smith, Dr RESIGNED | Secretary | 16 Feb 1996 | 28 Jan 1998 | | | 1 The Green, Foxton, Cambridge, CB2 6ST |
| BUCKIE, James William, Dr RESIGNED | Secretary | 29 Apr 1998 | 23 Mar 2001 | | | 20 Victoria Square, Kings Park, Stirling, Stirlingshire, FK8 2RB |
| JOHNSTON, Neil Gerard, Dr RESIGNED | Secretary | 23 Mar 2001 | 22 May 2001 | | | 83 Coxs End, Over, Cambridge, Cambridgeshire, CB4 5TY |
| MURPHY, John RESIGNED | Secretary | 22 May 2001 | 03 Jan 2006 | | | Pharmagene Laboratories Ltd, 2 Orchard Road, Royston, Herts, SG8 5HD |
| OPENSHAW, James Ronald RESIGNED | Secretary | 03 Jan 2006 | 14 Mar 2007 | | | 2 Orchard Road, Royston, Hertfordshire, SG8 5HD |
| PELTON, Kenneth Oakley RESIGNED | Secretary | 16 Dec 1997 | 29 Apr 1998 | | | Manor Farm, Noke, Oxfordshire, OX3 9TU |
| STCHUR, John RESIGNED | Secretary | 09 Mar 2007 | 31 Aug 2011 | | | Asterand Plc, Techone Suite 501 440 Burroughs, Detroit, Mi 48202 3420, FOREIGN, United States |
| NOMINEE SECRETARIES LTD RESIGNED | Nominee Secretary | 12 Oct 1995 | 12 Oct 1995 | | | 3 Garden Walk, London, EC2A 3EQ |
| BAXTER, Gordon Smith, Dr RESIGNED | Director | 21 Oct 1995 | 12 Sep 2000 | England | July 1961 | 1 The Green, Foxton, Cambridge, CB2 6ST |
| BRISCOE, Peter David RESIGNED | Director | 26 Apr 2001 | 04 Mar 2002 | United Kingdom | July 1951 | The Moat House, New Hall Green, Wareside, Hertfordshire, SG12 7SD |
| CHARLTON, Randal Christopher John RESIGNED | Director | 03 Jan 2006 | 28 Mar 2007 | | December 1939 | Asterand Plc, Techone Suite 501,, 440 Burroughs., Detroit, M148202-3420, FOREIGN, Usa |
| COLEMAN, Robert Alexander RESIGNED | Director | 06 Mar 1996 | 03 Jan 2006 | | October 1946 | 54 London Road, Royston, Hertfordshire, SG8 9EL |
| COOMBS, Martyn Stephen RESIGNED | Director | 26 Mar 2007 | 29 Jul 2011 | England | August 1961 | The Old Bakehouse, 28 Winslow Road, Granborough, Buckingham, Buckinghamshire, MK18 3NJ |
| JOHNSTON, Neil Gerard, Dr RESIGNED | Director | 08 Jun 2000 | 27 Jul 2004 | United Kingdom | July 1966 | 14 Long Furlong, Over, Cambridge, CB4 5PG |
| LEE, David Gordon RESIGNED | Director | 27 Apr 2000 | 02 May 2002 | | December 1942 | The Bell House Rectory Farm Road, Rectory Farm Road, Little Wilbraham, Cambridgeshire, CB1 5LB |
| LONG, Ronald Eric RESIGNED | Director | 01 Feb 2001 | 02 May 2002 | England | January 1947 | Cedar Tree House, Manor Road, Penn, Buckinghamshire, HP10 8JA |
| MOYSES, Christopher, Dr RESIGNED | Director | 24 Jan 2005 | 03 Jan 2006 | | October 1955 | Btg International Limited, 10 Fleet Place Limeburner Lane, London, EC4M 7SB |
| MURPHY, John RESIGNED | Director | 05 Mar 2002 | 03 Jan 2006 | | May 1953 | Pharmagene Laboratories Ltd, 2 Orchard Road, Royston, Herts, SG8 5HD |
| OPENSHAW, James Ronald RESIGNED | Director | 14 Jun 2004 | 14 Mar 2007 | | April 1966 | 2 Orchard Road, Royston, Hertfordshire, SG8 5HD |
| PELTON, Kenneth Oakley RESIGNED | Director | 06 Mar 1996 | 29 Apr 1998 | United Kingdom | April 1948 | Manor Farm, Noke, Oxfordshire, OX3 9TU |
| PRICE, Barry John, Dr RESIGNED | Director | 16 Feb 1996 | 02 May 2002 | England | July 1943 | Warren Farmhouse Warren Cottages, Warren Lane Cottered, Buntingford, Hertfordshire, SG9 9QG |
| REID, John Anthony RESIGNED | Director | 06 Mar 1996 | 14 Jun 1996 | | May 1938 | The Old Vicarage, Barnby In The Willows, Newark, Nottinghamshire, NG24 2SA |
| RIDDELL, Alastair James, Dr RESIGNED | Director | 29 Apr 1998 | 21 Feb 2005 | | May 1949 | Cambridge Science Park, 418 Milton Road, Cambridge, Cambridgeshire, CB4 0PA |
| STCHUR, John RESIGNED | Director | 09 Mar 2007 | 31 Aug 2011 | Usa | December 1969 | Asterand Plc, Techone Suite 501 440 Burroughs, Detroit, Mi 48202 3420, FOREIGN, United States |
| STEBBING, Nowell, Dr RESIGNED | Director | 16 Feb 1996 | 02 May 2002 | | September 1941 | Tower House, New Pale Road, Manley, Cheshire, WA6 9EX |
| STEFANELLI, Martin James RESIGNED | Director | 03 Jan 2006 | 28 Apr 2006 | | March 1961 | Techone Suite 501,, 440 Burroughs, Detroit, M148202-3420, FOREIGN, Usa |
| NOMINEE DIRECTORS LTD RESIGNED | Nominee Director | 12 Oct 1995 | 12 Oct 1995 | | | 3 Garden Walk, London, EC2A 3EQ |