| CLARKE, Jody ACTIVE | Director | 19 Jul 2019 | | England | October 1982 | Headlands Lane, Knottingley, West Yorkshire, WF11 0HP |
| METHVEN, Gregor Sandy ACTIVE | Director | 19 Sep 2022 | | England | October 1969 | Headlands Lane, Knottingley, West Yorkshire, WF11 0HP |
| SANTON, Stuart Mark ACTIVE | Director | 01 Jul 2021 | | England | December 1965 | Headlands Lane, Knottingley, West Yorkshire, WF11 0HP |
| BUTTERLY, Brian Joseph RESIGNED | Secretary | 18 May 1999 | 18 Feb 2013 | | | 13 Cowper Drive, Rathmines, Dublin 6, Ireland |
| REES, Karen RESIGNED | Secretary | 27 Apr 1998 | 15 Jul 1999 | | | 16 Ivy House Court, Auckley, Doncaster, South Yorkshire, DN9 3PX |
| SARAI, Mandeep RESIGNED | Secretary | 19 Aug 2019 | 09 Aug 2024 | | | Headlands Lane, Knottingley, West Yorkshire, WF11 0HP |
| SWINDELL, Keith Jeffrey RESIGNED | Secretary | 21 Feb 2013 | 19 Jul 2019 | | | Headlands Lane, Knottingley, West Yorkshire, WF11 0HP, United Kingdom |
| INVENSYS SECRETARIES LIMITED RESIGNED | Secretary | | 27 Apr 1998 | | | Invensys House, Carlisle Place, London, SW1P 1BX |
| AIKEN, Philip Stanley RESIGNED | Director | 07 Apr 1995 | 24 Apr 1997 | | January 1949 | 38 Newlands Avenue, Melton Park, Newcastle Upon Tyne, NE3 5PX |
| BAEHREN, James William RESIGNED | Director | 02 Jul 1998 | 31 Mar 1999 | | June 1950 | 7812 Therfield Dr, Sylvania Oh 43560, Ohio Usa, FOREIGN |
| BERRYMAN, Beverly John RESIGNED | Director | | 30 Apr 1993 | | March 1944 | Jessamine Cottage St Michaels Street, St Albans, Hertfordshire, AL3 4SJ |
| BROWN, Robert Casson RESIGNED | Director | 25 Jan 1994 | 31 Dec 1997 | | March 1939 | 38 Newlands Avenue, Melton Park, Newcastle Upon Tyne, NE3 5PX |
| BUTTERLY, Brian Joseph RESIGNED | Director | 08 Sep 2008 | 18 Feb 2013 | Ireland | March 1945 | 13 Cowper Drive, Rathmines, Dublin 6, Ireland |
| COULSON, Paul Richard RESIGNED | Director | 31 Mar 1999 | 05 Mar 2001 | | April 1952 | Balholm, 4 Shrewsbury Road, Dublin 4, Ireland |
| CURRIE, David RESIGNED | Director | 21 Jul 1999 | 26 Feb 2010 | United Kingdom | August 1945 | Brook Mount 21 Cavendish Avenue, Harrogate, North Yorkshire, HG2 8HY |
| DAVIES, Frank John, Sir RESIGNED | Director | | 30 Sep 1993 | England | September 1931 | Stonewalls Castle Street, Deddington, Banbury, Oxfordshire, OX15 0TE |
| GOREY, Brendan Kevin RESIGNED | Director | 31 Mar 1999 | 06 Apr 2009 | Ireland | May 1956 | 40 Lakelands Crescent, Stillorgan, County Dublin, Ireland |
| GORTER, Johannes RESIGNED | Director | 11 Nov 2016 | 23 Dec 2019 | Netherlands | October 1959 | Headlands Lane, Knottingley, West Yorkshire, WF11 0HP |
| JACKSON, Alan Robert RESIGNED | Director | | 07 Jun 1995 | | March 1936 | 25 Evelyn Mansions, Carlisle Place, London, SW1 1NH |
| KILTY, Edward Joshua RESIGNED | Director | 31 Mar 1999 | 30 Apr 2007 | | August 1948 | 39 Carysfort Downes, Blackrock, Co Dublin, IRISH, Ireland |
| MAWBY, Allen RESIGNED | Director | 12 May 1994 | 02 Jul 1998 | | August 1949 | Kerry House Comeytrowe Lane, Taunton, Somerset, TA1 5JB |
| NOLAN, John David RESIGNED | Director | 01 May 1995 | 03 Oct 1997 | | August 1946 | 89 Postern Close, York, YO2 1JF |
| O'DONOVAN, Kathleen Anne RESIGNED | Director | | 27 Apr 1998 | United Kingdom | May 1957 | 3c Cintra Park, Upper Norwood, London, SE19 2LH |
| PASSANT, John RESIGNED | Director | 21 Feb 2013 | 30 Jun 2021 | England | May 1952 | Headlands Lane, Knottingley, West Yorkshire, WF11 0HP, United Kingdom |
| PEARSON, Graeme Charles RESIGNED | Director | | 30 Aug 1996 | | August 1939 | 836 Esplanade, Mornington, Victoria 3931, Australia |
| PETERSON, Alan Edward RESIGNED | Director | 12 May 1994 | 28 Apr 1995 | | October 1947 | 153 Cyncoed Road, Cyncoed, Cardiff, CF23 6AG |
| PETERSSON, John Martin RESIGNED | Director | 23 Dec 2019 | 24 Jun 2024 | Sweden | January 1966 | Headlands Lane, Knottingley, West Yorkshire, WF11 0HP |
| REES, Karen RESIGNED | Director | 03 Oct 1997 | 15 Jul 1999 | | December 1963 | 16 Ivy House Court, Auckley, Doncaster, South Yorkshire, DN9 3PX |
| RIORDAN, John Pius RESIGNED | Director | 14 Dec 1999 | 31 Mar 2014 | France | November 1958 | 52 Avenue Victor Hugo, 75116, Paris, France |
| ROBERTSON, Alex RESIGNED | Director | 19 Apr 2000 | 31 Mar 2014 | United Kingdom | December 1960 | 1 Cedar Drive, Tadcaster, North Yorkshire, LS29 9TJ |
| ROBINSON, Peter John RESIGNED | Director | | 02 Jul 1998 | | July 1943 | 20 Medley Place, South Yarra, Victoria, 3141, Australia |
| ROTHERHAM, Duncan RESIGNED | Director | | 03 Sep 1993 | | July 1940 | Rookes Cottage Cherry Tree Avenue, Newton On Ouse, York, North Yorkshire, YO6 2BN |
| ROZMUS, Mark RESIGNED | Director | 30 Oct 2008 | 24 Jun 2024 | England | September 1962 | Breck Lodge, Thorpe Road, Mattersey, Doncaster, South Yorkshire, DN10 5ED |
| STEVENS, David John RESIGNED | Director | 31 Dec 1997 | 27 Apr 1998 | | March 1950 | 42 Burghley Road, Wimbledon, London, SW19 5HN |
| STRACHAN, Ian Charles RESIGNED | Director | 03 Jan 1996 | 27 Apr 1998 | United Kingdom | April 1943 | 30 Bloomfield Terrace, London, SW1W 8PQ |
| SWINDELL, Keith Jeffrey RESIGNED | Director | 16 Jan 2008 | 19 Jul 2019 | England | July 1959 | 48, Rectory Street, Epworth, North Lincolnshire, DN9 1HS, United Kingdom |
| THOM, James Demmink RESIGNED | Director | 31 Jul 1996 | 27 Apr 1998 | | July 1946 | Tollgate Cottage, Turners Hill Road, Crawley Down, West Sussex, RH10 4HG |
| VAN HOOSER, David Gordon RESIGNED | Director | 27 Apr 1998 | 31 Mar 1999 | | October 1946 | 4942 Dauber Drive West, Toledo, Ohio, 43615, Usa |
| WALL, Niall James RESIGNED | Director | 30 Apr 2007 | 11 Nov 2016 | England | December 1962 | Part Level 1 (East), 10 Portman Square, London, W1H 6AZ, England |
| WILLIAMS, Stanley Killa RESIGNED | Director | 21 Apr 1993 | 31 Jul 1996 | England | July 1945 | White Raven, Park Lane, Ashtead, Surrey, KT21 1EU |
| WORKMAN, David Alan RESIGNED | Director | 31 Mar 1999 | 11 Aug 2000 | United Kingdom | May 1951 | 27 Gatesbridge Park, Finningles, Doncaster, South Yorkshire, DN9 3NZ |
| YOUNG, Eric Edward RESIGNED | Director | 02 Jul 1998 | 04 Jan 2000 | | August 1942 | 2nd Floor Flat, 1 Palace Green, London, W8 4QA |
| YOUNG, Thomas Lee RESIGNED | Director | 27 Apr 1998 | 31 Mar 1999 | | February 1944 | 5315 Rymoor Drive, Sylvania, Ohio 43560, Usa |