| CLARK, Andrew Simon ACTIVE | Director | 01 Dec 2018 | | England | September 1955 | Redhill House, East Ravendale, Grimsby, DN37 0RX, England |
| FREE, Julian Richard ACTIVE | Director | 23 Apr 2020 | | England | January 1963 | Vice Chancellor's Office, University Of Lincoln, Brayford Pool, Lincoln, LN6 7TS, England |
| PINCHBECK, Charles Alexander ACTIVE | Director | 29 Apr 2015 | | England | November 1962 | 9, Cowgate, Heckington, Sleaford, Lincolnshire, NG34 9RL, England |
| STOCKER, David Andrew ACTIVE | Director | 06 Feb 2024 | | United Kingdom | January 1956 | Manor Farm House, 16 Main Street, Thorpe On The Hill, Lincolnshire, LN6 9BG, United Kingdom |
| BATES, Elizabeth Anne RESIGNED | Secretary | 11 Mar 2013 | 17 May 2019 | | | The Old School, Cameron Street, Heckington Sleaford, Lincolnshire , NG34 9RW |
| BLENNTOFT, Rebecka RESIGNED | Secretary | 15 Jan 1997 | 17 Jan 2000 | | | Number 2 Chapel Lane, Folkingham, Sleaford, Lincolnshire, NG34 0SL |
| HALL, Collette Elizabeth RESIGNED | Secretary | | 15 Jan 1997 | | | 7 Southfields, Sleaford, Lincolnshire, NG34 7LB |
| ROE, Stephen Richard RESIGNED | Secretary | 09 May 2019 | 24 Dec 2024 | | | The Old School, Cameron Street, Heckington Sleaford, Lincolnshire , NG34 9RW |
| START, David Roderick RESIGNED | Secretary | 18 Jan 2000 | 11 Mar 2013 | | | The Old School, Cameron Street, Heckington Sleaford, Lincolnshire , NG34 9RW |
| ARON, William James RESIGNED | Director | 29 Jul 2015 | 30 Jun 2018 | England | March 1948 | 18, Thornton Crescent, Horncastle, Lincolnshire, LN9 6JP, England |
| ASHTON, Michael RESIGNED | Director | | 30 Nov 2022 | United Kingdom | September 1949 | Oakhurst 3 Stanhope Avenue, Woodhall Spa, Lincolnshire, LN10 6SP |
| BINGHAM, June Caroline RESIGNED | Director | 29 Jan 2014 | 06 Jul 2026 | England | June 1957 | New House, Capps Lane, Waddington, Lincoln, LN5 9RJ, England |
| BOWSER, Robert Ernest Saul RESIGNED | Director | | 31 Oct 2012 | England | July 1943 | Hareby Hall, Hareby, Spilsby, Lincolnshire, PE23 4HT |
| BUTTERY, Roger RESIGNED | Director | | 19 Sep 1996 | | April 1946 | 7 Beckhall, Welton, Lincoln, Lincolnshire, LN2 3LJ |
| COLTMAN, Anne RESIGNED | Director | | 26 Jan 2024 | United Kingdom | April 1943 | Skellingthorpe Hall, Lincoln, Lincolnshire, LN6 5UU |
| CRAGOE, Matthew RESIGNED | Director | 28 Oct 2015 | 04 Sep 2019 | United Kingdom | April 1961 | 32, Gentlemans Row, Enfield, Middlesex, EN2 6PU, England |
| DYMOKE, Francis John Fane Marmion RESIGNED | Director | 26 Mar 2008 | 30 Nov 2022 | England | January 1955 | Scrivelby Grange, Horncastle, Lincolnshire, LN9 6JL |
| ELLIS, Timothy William, The Rt Revd Dr RESIGNED | Director | 25 Jun 2003 | 03 Jul 2008 | United Kingdom | August 1953 | Saxonwell Vicarage, Church Street Long Bennington, Newark, Nottinghamshire, NG23 5ES |
| ERSKINE CRUM, Simon Walter, Wing Commander RESIGNED | Director | 12 Dec 2001 | 26 Jan 2024 | United Kingdom | March 1942 | Glebe Barn, Wellingore, Lincoln, LN5 0HS |
| HANCOCK, Dorothy Margaret RESIGNED | Director | 01 Apr 2018 | 28 Apr 2023 | United Kingdom | March 1949 | The Old School, Cameron Street, Heckington Sleaford, Lincolnshire , NG34 9RW |
| ISAAC, Adrian Bennett RESIGNED | Director | 10 Dec 2003 | 27 Jun 2007 | England | January 1942 | 66 Spilsby Road, Boston, Lincolnshire, PE21 9NS |
| JOHNSON, Richard Ellis RESIGNED | Director | 27 Apr 2016 | 13 Nov 2020 | England | December 1949 | The Old School, Cameron Street, Heckington Sleaford, Lincolnshire , NG34 9RW |
| KEIGHLEY, Geoffrey Neil RESIGNED | Director | 25 Sep 1997 | 30 Oct 2013 | England | April 1940 | 66 St Marys Lane, Louth, Lincolnshire, LN11 0DT |
| LIDBETTER, Ursula Frances Rosamond RESIGNED | Director | 03 May 2023 | 06 Jul 2026 | England | October 1962 | 9, Hillside Avenue, Lincoln, LN2 5PU, England |
| MILLIGAN-MANBY, James Charles Stewart Reynolds RESIGNED | Director | 24 Jun 1997 | 30 Oct 2013 | England | May 1958 | Thorganby Hall, Thorganby, Grimsby, North East Lincolnshire, DN37 0SR |
| PRENTICE, George Robert RESIGNED | Director | | 17 Jun 1998 | | June 1929 | Dunsfold 216a Grantham Road, Sleaford, Lincolnshire, NG34 7NU |
| PRICE, David William James, Exors Of RESIGNED | Director | 24 Jun 1997 | 31 Oct 2012 | England | June 1947 | Harrington Hall, Spilsby, Lincolnshire, PE23 4NH |
| PRICHARD, Cameron Thomson RESIGNED | Director | 30 Jun 1999 | 15 Dec 2017 | United Kingdom | September 1936 | Ivy House 1 Hall Wath, Bassingham, Lincoln, Lincolnshire, LN5 9EY |
| PRYOR, Francis Manning Marlborough, Dr RESIGNED | Director | 02 Nov 2011 | 31 Jul 2014 | United Kingdom | January 1945 | The Old School, Cameron Street, Heckington Sleaford, Lincolnshire , NG34 9RW |
| ROMNEY, David, Councillor RESIGNED | Director | 15 Dec 1993 | 10 Dec 1997 | | June 1957 | 103 Eastgate, Sleaford, Lincolnshire, NG34 7EE |
| SLEIGHT, David, Professor RESIGNED | Director | 02 Nov 2011 | 15 Dec 2017 | England | July 1963 | The Old School, Cameron Street, Heckington Sleaford, Lincolnshire , NG34 9RW |
| STEVENS, Keith RESIGNED | Director | 20 Dec 1994 | 30 Sep 1998 | | November 1940 | The Paddock Redcap Lane, Boston, Lincolnshire, PE21 9LZ |
| TURNER, Cyril Crosbie RESIGNED | Director | | 27 Aug 1993 | | November 1915 | 9 Salter Cottage, Ludford, Lincoln, Lincolnshire, LN3 6AQ |
| TWEEDALE, Stuart Miles RESIGNED | Director | 30 Oct 2013 | 31 May 2015 | England | February 1962 | 3, The Sidings, Ruskington, Sleaford, Lincolnshire, NG34 9GA, England |
| WALKER, Andrew, Dr RESIGNED | Director | 26 Mar 2008 | 25 Jun 2010 | United Kingdom | November 1963 | University Of Lincoln, Brayford Pool, Lincoln, Lincolnshire, LN6 7TS |
| WHEAT, Herbert Graham, Councillor RESIGNED | Director | 10 Dec 1997 | 29 Apr 2009 | | January 1928 | 112 Manthorpe Road, Grantham, Lincolnshire, NG31 8DL |
| WORTH, Charles Nicholas, Councillor RESIGNED | Director | 29 Oct 2009 | 30 Oct 2013 | United Kingdom | December 1957 | The Old School, Cameron Street, Heckington Sleaford, Lincolnshire , NG34 9RW |