| BUCKLEY, Robert ACTIVE | Director | 12 May 2011 | | United States Massachusetts | April 1974 | Unit 1, Orion Business Park, Bird Hall Lane, Cheadle Heath, Stockport, SK3 0XG, United Kingdom |
| GLENNON, Christopher Mark, Mr. ACTIVE | Director | 05 May 2022 | | England | November 1970 | Unit 1, Orion Business Park, Bird Hall Lane, Cheadle Heath, Stockport, SK3 0XG, United Kingdom |
| LANE, Steve Haydn, Mr. ACTIVE | Director | 02 Jan 2020 | | England | February 1971 | Unit 1, Orion Business Park, Bird Hall Lane, Cheadle Heath, Stockport, SK3 0XG, United Kingdom |
| CHARLESWORTH, Kenneth John RESIGNED | Secretary | 03 Dec 1993 | 03 Jun 1997 | | | 14 Beaumont Green, Groby, Leicester, Leicestershire, LE6 0EP |
| SHRIMPTON, Peter RESIGNED | Secretary | 03 Jun 1997 | 18 Mar 2009 | | | Bridge House, Ashow, Kenilworth, Warwickshire, CV8 2LE |
| SMITH, Simon Frederick RESIGNED | Secretary | | 03 Dec 1993 | | | 24 Beech Lane, Kislingbury, Northampton, Northamptonshire, NN7 4AL |
| ATKINSON, Robert Jerry RESIGNED | Director | | 31 Dec 1999 | | July 1941 | 100 John Aselford Drive, Kanata, Ontario, K2W 1A8, Canada |
| AVERY, Colin Reginald RESIGNED | Director | | 18 Aug 1993 | | September 1942 | C/O Lumonics Inc, 105 Schneider Road, Kanata, Ontario K2k 1y3, FOREIGN, Canada |
| BAKER, Kevin James RESIGNED | Director | 01 Jun 2000 | 29 Jun 2001 | England | May 1959 | Ash Tree Barn, Church Street, Churchover, Rugby, Warwickshire, CV23 0EW |
| BELLANTUONI, Antony J RESIGNED | Director | 01 Jun 2009 | 12 May 2011 | Usa | July 1951 | 37, Woodland Drive, Nashua, New Hampshire 03063, United States |
| BENNETT, John Edward RESIGNED | Director | 30 Mar 2000 | 01 Aug 2003 | | June 1952 | 106 Stoney Road, Coventry, West Midlands, CV3 6HY |
| BOWEN, Robert RESIGNED | Director | 23 Oct 2006 | 03 Apr 2009 | | August 1940 | 11 Graystone Lane, Weston, Ma, 02439, Middlesex County |
| BRAK, Philippe RESIGNED | Director | 01 Feb 2008 | 02 Sep 2011 | Usa | June 1960 | 10115 Lockwood Dr, Cupertino, California, 95014, Usa |
| CHANG, Peter Aka Lei RESIGNED | Director | 27 Jan 2014 | 05 Sep 2023 | United States | June 1965 | 29, Holton Road, Holton Heath, Poole, Dorset, BH16 6LN, England |
| EDELSTEIN, Sergio, Dr RESIGNED | Director | 03 Apr 2009 | 25 May 2010 | Usa | November 1954 | 1 Charles Street, Boston, Massachusetts, 02116, Usa |
| GRAVES, Gillian Margaret RESIGNED | Director | 30 Oct 1998 | 19 May 2000 | England | January 1963 | 34 Camelot Way, Duston, Northampton, Northamptonshire, NN5 4BG |
| JAMES, Douglas RESIGNED | Director | | 01 Aug 1994 | | May 1942 | 457 Oakhill Road, Village Of Rockcliff, Ottawa, Ontario K1m 1j5, FOREIGN, Canada |
| JINKS, Nigel George RESIGNED | Director | | 31 Jul 1996 | | June 1952 | 4 Beech Drive, Thurlaston, Rugby, Warwickshire, CV23 9JT |
| KEW, Stephen William RESIGNED | Director | 01 Aug 2003 | 21 Dec 2007 | United Kingdom | June 1953 | 20 Barrowfield, Cuckfield, West Sussex, RH17 5ER |
| MARTYR, David Roy, Dr RESIGNED | Director | 01 Aug 1994 | 30 Oct 1998 | | October 1957 | 19 Drayton Park, Daventry, Northamptonshire, NN11 5TB |
| MIAH, Tracey Anne RESIGNED | Director | 02 Apr 1999 | 03 Oct 2007 | England | January 1968 | 58 Stonebridge Road, Coleshill, Birmingham, B46 3HA |
| PALMER, Linda RESIGNED | Director | 01 Aug 2003 | 23 Oct 2006 | | June 1951 | 80 Woodcrest Drive, North Andover, Massachusetts 01895, Usa |
| ROBERTS, Christopher John RESIGNED | Director | 16 Nov 2004 | 01 Apr 2015 | England | July 1954 | Southdown, Eldons Drove Lytchett Matravers, Poole, Dorset, BH16 6HH |
| SPINELLA, Timothy Salvatore RESIGNED | Director | 12 May 2011 | 05 May 2022 | United States | March 1966 | 29, Holton Road, Holton Heath, Poole, Dorset, BH16 6LN, England |
| SWAIN, Thomas Richard RESIGNED | Director | 16 Nov 2004 | 01 Jun 2009 | | September 1945 | 130 Nutmeg Lane, North Andover, Massachusetts, Usa |
| WEBB, Stephen RESIGNED | Director | 16 Nov 2004 | 31 Mar 2019 | England | April 1960 | The Old Brewery House, Burnside, Martinstown, Dorchester, Dorset, DT2 9JR |
| WEEDON, Timothy Michael William, Dr RESIGNED | Director | 03 Jun 1997 | 18 Jun 1998 | | February 1943 | 66 Main Street, Newbold, Rugby, Warwickshire, CV21 1HW |
| WINSTON, Charles David RESIGNED | Director | 01 Jan 2000 | 23 Oct 2006 | | March 1941 | 1471 Padre Lane, Pebble Beach Ca93953, California, Usa |
| YOUNG, Brian Samuel RESIGNED | Director | 01 Feb 2019 | 02 Jan 2020 | United States | January 1969 | 29, Holton Road, Holton Heath, Poole, Dorset, BH16 6LN, England |