| ENDEAVOUR SECRETARY LIMITED ACTIVE | Secretary | 08 Oct 2020 | | | | Tobias House,, St Mark's Court, Teesdale Business Park, Teesside, TS17 6QW, United Kingdom |
| ATKINSON, James David Edwin ACTIVE | Director | 16 Oct 2013 | | England | December 1985 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| ATKINSON, James Edwin ACTIVE | Director | 06 Jul 1995 | | England | December 1957 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| ATKINSON, Mark Robert ACTIVE | Director | 23 Aug 2001 | | England | April 1967 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| BOYD, Jeremy John ACTIVE | Director | 02 Nov 2000 | | England | January 1955 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| GILBERTSON, Christopher Jack ACTIVE | Director | 30 Mar 2020 | | England | March 1988 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| GORDON, Adrian Mark ACTIVE | Director | 14 Jul 2021 | | United Kingdom | April 1973 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| STALLEY, Michael ACTIVE | Director | 16 Oct 2013 | | England | June 1968 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| BOYD, Jeremy John RESIGNED | Secretary | 31 Mar 2003 | 08 Oct 2020 | | | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| SMITH, Terene Stanley RESIGNED | Secretary | | 31 Mar 2003 | | | Ling Dene, High Hesket, Carlisle, Cumbria, CA4 0JH |
| ATKINSON, Eric RESIGNED | Director | 26 Sep 2002 | 28 Nov 2017 | England | November 1952 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| ATKINSON, James Edwin (Snr) RESIGNED | Director | | 10 Oct 1995 | | December 1929 | Woodside, Park Avenue, Hartlepool, Cleveland, TS26 0EA |
| ATKINSON, Mark Robert RESIGNED | Director | 04 Sep 1995 | 30 Oct 2000 | | April 1967 | 7 Warwick Grove, Hartlepool, TS26 9ND |
| EDWARDS, James Wayman RESIGNED | Director | | 25 Jun 2001 | | March 1955 | The Laurels 2 The Front, Middleton One Row, Darlington, County Durham, DL2 1AP |
| EDWARDS, Sheila RESIGNED | Director | | 04 Sep 1995 | | May 1929 | White House, Knock, Appleby In Westmorland, Cumbria, CA16 6DN |
| ELLIOTT, Kenneth George Mitchell RESIGNED | Director | | 12 Jun 2003 | | May 1948 | The Courtyard 1 Loaning Head, Culgaith, Penrith, Cumbria, CA10 1QZ |
| GARDNER, David Michael RESIGNED | Director | 07 Apr 2011 | 12 Sep 2011 | England | November 1958 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| GRIFFITHS, Alan Trevor RESIGNED | Director | 04 Sep 1995 | 22 Jul 1996 | | February 1949 | 42 Jameson Drive, Corbridge, Northumberland, NE45 5EX |
| HILL, Steven RESIGNED | Director | 13 Jan 2016 | 23 Jan 2017 | England | November 1959 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| KIDD, Lindsay Altham RESIGNED | Director | | 31 Jul 2002 | England | August 1932 | Fairway Arthur Street, Penrith, Cumbria, CA11 7TX |
| KIDD, Mary Elizabeth RESIGNED | Director | | 04 Sep 1995 | | November 1935 | Fairway Arthur Street, Penrith, Cumbria, CA11 7TX |
| LITTLEFAIR, Arthur William RESIGNED | Director | 01 Oct 2005 | 31 Dec 2008 | United Kingdom | July 1950 | Rancroft, Christian Head, Kirkby Stephen, Cumbria, CA17 4HA |
| MCGILL, Paul RESIGNED | Director | 28 Nov 2017 | 01 Jan 2026 | England | December 1965 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| RICHARDSON, Thomas Henry RESIGNED | Director | | 03 Feb 1995 | | January 1929 | Amalthea, Stainton, Penrith, Cumbria, CA11 0EB |
| ROGERS, Paul Nigel RESIGNED | Director | 01 Jan 2010 | 17 Oct 2010 | England | April 1953 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| SMITH, Terene Stanley RESIGNED | Director | | 31 Mar 2003 | United Kingdom | July 1943 | Ling Dene, High Hesket, Carlisle, Cumbria, CA4 0JH |
| THOMPSON, Frederick RESIGNED | Director | | 04 Sep 1995 | | July 1914 | 27 Tyne Close Avenue, Penrith, Cumbria, CA11 7ER |
| WARWICK, David RESIGNED | Director | 05 Dec 2001 | 31 Dec 2008 | | April 1944 | 17 Abbey Drive, Matland, Kendal, Cumbria, LA9 7QN |
| ATKINSON NORTHERN LIMITED RESIGNED | Director | | 04 Sep 1995 | | | 1 Castlegate Quay, Riverside, Stockton On Tees, TS18 1BZ |