| ENDEAVOUR SECRETARY LIMITED ACTIVE | Secretary | 08 Sep 2011 | | | | Tobias House,, St Mark's Court, Teesdale Business Park, Teesside, TS17 6QW, United Kingdom |
| BENTLEY, Emily Jane ACTIVE | Director | 11 Dec 2012 | | United Kingdom | May 1978 | Tobias House,, St Mark's Court, Teesdale Business Park, Teesside, TS17 6QW, United Kingdom |
| HOUSTON, Susan ACTIVE | Director | 11 Dec 2024 | | United Kingdom | November 1955 | C/O Endeavour Partnership, Tobias House, St Mark's Court, Teesdale Business Park, Stockton On Tees, TS17 6QW, United Kingdom |
| REYNOLDS, Jane Anne ACTIVE | Director | 11 Oct 2007 | | England | November 1962 | Tobias House,, St Mark's Court, Teesdale Business Park, Teesside, TS17 6QW, United Kingdom |
| STARKEY, Sharon Louise ACTIVE | Director | 29 Jun 2021 | | United Kingdom | May 1979 | Tobias House,, St Mark's Court, Teesdale Business Park, Teesside, TS17 6QW |
| EMBLETON, Douglas Geoffrey RESIGNED | Secretary | 12 Aug 1996 | 22 Oct 1998 | | | 6 Wycliffe Way, Darlington, County Durham |
| HILL, Donald Mitchell RESIGNED | Secretary | 22 Oct 1998 | 08 Nov 2001 | | | 53 Cockerton Green, Darlington, County Durham, DL3 9EG |
| MIDDLETON, Julie RESIGNED | Secretary | | 10 May 1993 | | | 9 Palmer Walk, Eaglescliffe, Stockton On Tees, Cleveland, TS16 9JW |
| RICHARDSON, Molly Jean RESIGNED | Secretary | 11 May 1993 | 16 Apr 1996 | | | 11 Darnbrook Way, Nunthorpe, Middlesbrough, Cleveland, TS7 0RA |
| TURNER, David Bruce RESIGNED | Secretary | 08 Nov 2001 | 08 Sep 2011 | | | Russet Wain, The Orchard, Great Smeaton, Northallerton, North Yorkshire, DL6 2HS |
| BOURNE, Patrick Neil RESIGNED | Director | 07 Sep 1993 | 22 Oct 1999 | | January 1945 | 4 Levisham Close, Acklam, Middlesbrough, Cleveland, TS5 7LT |
| BRAITHWAITE, Kenneth Arthur RESIGNED | Director | | 04 Aug 1992 | | June 1937 | Hutton Fields, Garbutts Lane Hutton Rudby, Yarm, Cleveland, TS15 0DN |
| BRINDLE, Thomas RESIGNED | Director | 10 Feb 2010 | 17 Oct 2013 | England | March 1980 | Westminster, St Mark's Court, Teesdale Business Park, Teesside, TS17 6QP, United Kingdom |
| BROWN, Jill RESIGNED | Director | 14 Oct 2004 | 16 Oct 2008 | England | July 1964 | 11 Rushmere Heath, Eaglescliffe, Stockton On Tees, Cleveland, TS16 9HA |
| BROWN, Terence RESIGNED | Director | 21 Oct 1997 | 22 Oct 1998 | England | March 1950 | 2 Chartwell Close, Ingleby Barwick, Stockton On Tees, Cleveland, TS17 0XQ |
| CAMPBELL, Jayne RESIGNED | Director | 12 Oct 2006 | 17 Oct 2013 | United Kingdom | April 1960 | Westminster, St Mark's Court, Teesdale Business Park, Teesside, TS17 6QP, United Kingdom |
| COADY, Brian RESIGNED | Director | 16 Nov 2000 | 31 Aug 2002 | | August 1942 | 95 Greenbank Road, Darlington, County Durham, DL3 6EN |
| COE, Sylvia May RESIGNED | Director | 21 Sep 1999 | 16 Oct 2008 | United Kingdom | May 1946 | 6 Moulton Grove, Fairfield, Stockton On Tees, TS19 7RH |
| DUNNE, Hilary Marie RESIGNED | Director | 22 Oct 1998 | 01 Jun 1999 | | May 1971 | 31 Jesmond Road, Darlington, County Durham, DL1 3HN |
| EMBLETON, Douglas Geoffrey RESIGNED | Director | 03 Oct 1995 | 08 Nov 2001 | | May 1947 | 6 Wycliffe Way, Darlington, County Durham |
| FOX, Malcolm Cyril RESIGNED | Director | | 30 Sep 1994 | | November 1938 | 24 Carlton Avenue, Billingham, Cleveland, TS22 5HU |
| GOODWIN, Lewis Charles RESIGNED | Director | 08 Sep 2011 | 25 Sep 2012 | Hutton Rudby | August 1978 | Westminster, St Mark's Court, Teesdale Business Park, Teesside, TS17 6QP, United Kingdom |
| HEALEY, Judith RESIGNED | Director | 19 Jun 2002 | 16 Feb 2004 | England | September 1960 | 12 Braemar Road, Billingham, Cleveland, TS23 2AF |
| HILL, Donald Mitchell RESIGNED | Director | | 08 Nov 2001 | | August 1927 | 53 The Green, Cockerton, Darlington, Co Durham, DL3 9EG |
| HODGSON, Carol RESIGNED | Director | 08 Nov 2001 | 12 Oct 2005 | | May 1947 | 57 Birchwood Road, Marton, Middlesbrough, TS7 8DD |
| HOLT, Lisa RESIGNED | Director | 01 Sep 2016 | 31 Dec 2022 | United Kingdom | July 1968 | Tobias House,, St Mark's Court, Teesdale Business Park, Teesside, TS17 6QW |
| KIDDLE, Susan RESIGNED | Director | 08 Nov 2001 | 30 Apr 2002 | Uk | December 1954 | 27, Thorington Gardens, Ingleby Barwick, Stockton-On-Tees, Cleveland, TS17 0UR |
| KIDDLE, Susan RESIGNED | Director | 22 Oct 1998 | 01 Jun 1999 | Uk | December 1954 | 27, Thorington Gardens, Ingleby Barwick, Stockton-On-Tees, Cleveland, TS17 0UR |
| LANGLEY, Peter Stuart RESIGNED | Director | 01 Sep 1992 | 08 Jun 1993 | | November 1949 | 107 Parliament Road, Middlesbrough, Cleveland, TS1 4JE |
| LAUD, David John RESIGNED | Director | 21 Oct 1997 | 07 Sep 1998 | | January 1965 | 5 Coniston Crescent, Redmarshall, Stockton On Tees, Teesdide, TS21 1HT |
| LAWSON, John Ian RESIGNED | Director | | 30 Apr 1993 | | January 1958 | Wyndham Rose, 19 Plantations, Wynyard, TS22 5SN |
| LAYFIELD, Michael James RESIGNED | Director | 13 Oct 2005 | 16 Oct 2008 | United Kingdom | April 1959 | 11 Worcester Road, Newton Hall, Durham, DH1 5PZ |
| LEGGETT, John RESIGNED | Director | 12 Oct 2006 | 22 Oct 2008 | England | June 1960 | 97 Elmwood, Middlesbrough, Cleveland, TS8 0SS |
| MACLEAN, Colin RESIGNED | Director | 07 Sep 1993 | 26 Sep 2000 | | March 1948 | 3 Ellerton Road, Hartburn, Stockton On Tees, Cleveland, TS18 5NJ |
| MILLER, Keith RESIGNED | Director | 21 Sep 1999 | 11 Oct 2006 | United Kingdom | May 1959 | 91 Wallington Road, High Grange, Billingham, Cleveland, TS23 3XQ |
| MINES, Paul Elliott RESIGNED | Director | 01 May 2002 | 14 Mar 2008 | United Kingdom | December 1969 | 5 Reeth Road, Hartburn, Stockton On Tees, Cleveland, TS18 5HB |
| MOORE, Alan RESIGNED | Director | | 08 Feb 1994 | United Kingdom | February 1937 | Poplar House Farm, South Broughton, Middlesbrough, Cleveland, TS9 7HN |
| OSBORNE, Pauline RESIGNED | Director | 14 Oct 2004 | 25 Jan 2013 | Uk | June 1960 | Westminster, St Mark's Court, Teesdale Business Park, Teesside, TS17 6QP, United Kingdom |
| RICHARDSON, Joseph RESIGNED | Director | 31 Oct 1991 | 16 Apr 1996 | | August 1939 | Cleveland Gates, 6 Lawson Ind Estate, Middlesbrough, Cleveland, B3 6LW |
| RICHARDSON, Molly RESIGNED | Director | 31 Oct 1991 | 16 Apr 1996 | | December 1940 | Cleveland Gates, 6 Lawson Industrial Estate, Middlesbrough, Cleveland, TS3 6LW |
| ROBINSON, John RESIGNED | Director | 10 Sep 1996 | 22 Oct 1998 | United Kingdom | March 1950 | 17 Rook Lane, Stockton On Tees, Cleveland, TS20 1SB |
| RUSHBY, Robert James RESIGNED | Director | 11 Oct 2007 | 18 Nov 2011 | England | April 1980 | Westminster, St Mark's Court, Teesdale Business Park, Teesside, TS17 6QP, United Kingdom |
| RUSHBY, Robert James RESIGNED | Director | 08 Nov 2001 | 14 Feb 2003 | | April 1980 | 245 Birchington Avenue, Middlesbrough, Cleveland, TS6 8AH |
| SMITH, Joanna RESIGNED | Director | 11 Dec 2012 | 05 Dec 2013 | United Kingdom | April 1970 | Westminster, St Mark's Court, Teesdale Business Park, Teesside, TS17 6QP, United Kingdom |
| STEWART, Angeline Danielle RESIGNED | Director | 16 Oct 2014 | 03 Apr 2026 | United Kingdom | November 1984 | Tobias House,, St Mark's Court, Teesdale Business Park, Teesside, TS17 6QW |
| TUCKER, Robert John RESIGNED | Director | 02 Feb 2004 | 11 Oct 2006 | | September 1966 | 28 Ellerbeck Way, Middlesbrough, Cleveland, TS7 9QH |
| TURNER, David Bruce RESIGNED | Director | 10 Sep 1996 | 08 Sep 2011 | United Kingdom | April 1946 | Russet Wain, The Orchard, Great Smeaton, Northallerton, North Yorkshire, DL6 2HS |
| WALES, Stephen John RESIGNED | Director | 21 Sep 1999 | 07 Jun 2000 | | September 1969 | 18 Penton Court, Billingham, Cleveland, TS23 3UH |
| WALLACE, Yvonne RESIGNED | Director | 01 Sep 1992 | 08 Feb 1994 | England | April 1957 | 3 Carpenter Close, Yarm, Cleveland, TS15 9UT |
| WHITFIELD, Brian Howard RESIGNED | Director | | 01 Mar 2011 | United Kingdom | March 1936 | 171 Guisborough Road, Nunthorpe, Middlesbrough, Cleveland, TS7 0JQ |
| WILKIE, Veronica Christine Rosalind RESIGNED | Director | 26 Sep 2000 | 14 Mar 2008 | | December 1940 | 27 Cedar Drive, Thornton, Middlesbrough, Cleveland, TS8 9BY |