| 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 | 02 Dec 2010 | | England | December 1985 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| ATKINSON, James Edwin ACTIVE | Director | | | England | December 1957 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| ATKINSON, Jonathan Alan ACTIVE | Director | 18 May 2013 | | England | May 1990 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| ATKINSON, Mark Robert ACTIVE | Director | 08 Jun 1992 | | England | April 1967 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| BOYD, Jeremy John ACTIVE | Director | 20 Jun 2001 | | England | January 1955 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| GILBERTSON, Christopher Jack ACTIVE | Director | 29 Jan 2020 | | England | March 1988 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| GILBERTSON, Susan Mary ACTIVE | Director | 29 Apr 2019 | | England | October 1959 | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| ATKINSON, George Bernard RESIGNED | Secretary | | 31 Oct 1998 | | | Tunstall Manor Park Avenue, Hartlepool, Cleveland, TS26 0ED |
| BOYD, Jeremy John RESIGNED | Secretary | 01 Jan 1998 | 08 Oct 2020 | | | Thornton House, Cargo Fleet Lane, Middlesbrough, TS3 8DE |
| ATKINSON, George Bernard RESIGNED | Director | | 31 Dec 1998 | | January 1935 | Tunstall Manor Park Avenue, Hartlepool, Cleveland, TS26 0ED |
| ATKINSON, James Edwin (Snr) RESIGNED | Director | | 31 Dec 1999 | | December 1929 | Woodside, Park Avenue, Hartlepool, Cleveland, TS26 0EA |
| ATKINSON, Martin Graham RESIGNED | Director | 22 May 2002 | 10 Dec 2002 | | July 1965 | Beech Cottage, Cresswell Road, Hartlepool, Cleveland, TS26 0EG |
| ATKINSON, Martin Graham RESIGNED | Director | | 01 Nov 1995 | United Kingdom | July 1965 | Woodside Park Avenue, Hartlepool, Cleveland, TS26 0EA |
| ATKINSON, Nigel Bernard RESIGNED | Director | 01 Jan 2000 | 10 Dec 2002 | | February 1965 | 5 Thropton Close, High Shincliffe, Durham, DH1 2QA |
| ATKINSON, Penelope Mary RESIGNED | Director | | 01 Nov 1995 | | April 1964 | 14 Four Winds Court, West Park, Hartlepool, Cleveland, TS26 0LP |
| ATKINSON, Richard Michael RESIGNED | Director | | 10 Dec 2002 | England | November 1963 | Red Lodge, 1 Carisbrooke Road, Hartlepool, TS26 0AB |
| ATKINSON, Robert Thornton RESIGNED | Director | | 31 Dec 1998 | | June 1937 | 46 The Grove, Hartlepool, Cleveland, TS26 9LZ |
| GILBERTSON, Susan Mary RESIGNED | Director | | 01 Nov 1995 | | October 1959 | 1 The Drive, Wycar, Bedale, North Yorkshire, DL8 1ER |