| ROXBY, Stephen Philip ACTIVE | Secretary | 01 Jan 2022 | | | | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| BAKER, Ambroise Gregoire, Dr ACTIVE | Director | 05 Sep 2019 | | England | October 1979 | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| BAKER, Gillian Kay ACTIVE | Director | 17 Nov 2025 | | England | December 1973 | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| BECK, Christopher Malcolm ACTIVE | Director | 02 Sep 2020 | | England | October 1971 | Tvca, Cavendish House, Prince's Wharf, Thornaby, Stockton-On-Tees, TS17 6QY, England |
| BOOTH, Amanda Louise, Dr ACTIVE | Director | 28 Apr 2014 | | England | September 1967 | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| BROOKS, Paul David ACTIVE | Director | 17 Oct 2017 | | England | February 1963 | Harbour Master’S Office, Ferry Road, Middlesbrough, TS2 1PL, England |
| COOKE, Chris Ellis ACTIVE | Director | 28 Apr 2014 | | England | January 1957 | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| ROVARDI, Paul John ACTIVE | Director | 11 Sep 2025 | | England | September 1974 | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| SIMPSON, David Jeremy ACTIVE | Director | 28 Mar 2003 | | England | January 1955 | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| MANN, John Arthur RESIGNED | Secretary | 29 May 1998 | 31 Mar 2009 | | | 99 Thames Avenue, Guisborough, Cleveland, TS14 8AQ |
| PAILOR, Robert Forster RESIGNED | Secretary | 01 Apr 2009 | 12 Oct 2015 | | | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| STILL, Simon Jonathan Henry RESIGNED | Secretary | | 29 May 1998 | | | Monkend Hall, Croft-On-Tees, Darlington, DL2 2SJ |
| WOODS, Robert, Dr RESIGNED | Secretary | 12 Oct 2015 | 01 Jan 2022 | | | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| BALLANTYNE, Thomas Marr RESIGNED | Director | 23 Oct 2014 | 15 Oct 2022 | England | August 1964 | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| BARKER, Trevor RESIGNED | Director | 02 Mar 2001 | 18 Dec 2002 | | September 1957 | Station Farm, Ramshaw, County Durham, DL14 0NN |
| BAXTER, Robert, Dr RESIGNED | Director | 31 Aug 2001 | 09 Sep 2004 | | January 1964 | 1 Priestburn Close, Esh Winning, Durham, DH7 9NF |
| BEATTIE, William John RESIGNED | Director | 24 Jan 2003 | 07 Feb 2014 | United Kingdom | January 1955 | 2 Wimpole Road, Stockton On Tees, Cleveland, TS19 7LP |
| BELLAMY, David James, Dr, Obe RESIGNED | Director | | 01 Jun 2003 | England | January 1933 | Millhouse Bedburn, Bishop Auckland, County Durham, DL13 3NN |
| BIRD-HALTON, Stephanie RESIGNED | Director | 14 Dec 2020 | 15 Oct 2022 | England | January 1985 | Lancaster House, Hampshire Court, Newcastle Business Park, Newcastle Upon Tyne, NE4 7YH, England |
| BOND, Richard Stanley RESIGNED | Director | 09 Sep 1998 | 07 Apr 2000 | England | April 1955 | Juniper House East View, Sadberge, Darlington, County Durham, DL2 1SF |
| CAMPBELL, Joseph Wilson RESIGNED | Director | 05 Sep 1997 | 10 Aug 2012 | United Kingdom | March 1937 | 5 Broad Close, Stainton, Middlesbrough, Cleveland, TS8 9BW |
| CARRICK, James Patterson, Dr RESIGNED | Director | | 13 May 1994 | | March 1948 | 4 Broad Close, Stainton, Middlesbrough, Cleveland, TS8 9BW |
| CARTER, Arthur Allan, Councillor RESIGNED | Director | | 31 Mar 1996 | | February 1925 | 61 Penrith Road, Berwick Hills, Middlesbrough, Cleveland, TS8 9BN |
| CHARMAN, Kevin, Doctor RESIGNED | Director | 05 Sep 1997 | 07 Apr 2000 | | July 1948 | 5 Oaklands, Riding Mill, Northumberland, NE44 6AS |
| CORNES, Peter Leslie, Dr RESIGNED | Director | 02 Mar 2001 | 19 Jun 2025 | United Kingdom | September 1949 | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| COTTINGHAM, Michael RESIGNED | Director | | 18 Feb 1994 | | October 1941 | 9 Greenbank Court, Hartlepool, Cleveland, TS26 0HH |
| CURR, Irene RESIGNED | Director | 18 Jul 2003 | 06 Jul 2007 | | October 1946 | 48 Muriel Street, Redcar, Cleveland, TS10 3JB |
| DREWITT, Jeremy Leslie RESIGNED | Director | 30 Jan 2004 | 10 Jun 2021 | United Kingdom | February 1949 | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| EVANS, Garry RESIGNED | Director | 07 Feb 2014 | 05 Sep 2019 | England | December 1952 | Teesside University, Borough Road, Middlesbrough, Cleveland, TS1 3BA, England |
| EVANS, Peter, Dr RESIGNED | Director | 24 Mar 1995 | 18 Jul 2003 | | March 1928 | Treetops Hutton Village, Guisborough, Cleveland, TS14 8EP |
| EVANS, Peter Richard, Dr RESIGNED | Director | | 02 Nov 2001 | | July 1937 | 18 Baliol Square, Durham, County Durham, DH1 3QH |
| FARMERY, Keith, Dr RESIGNED | Director | 13 May 1994 | 24 Sep 2004 | England | December 1943 | Teesbank House Teesbank Avenue, Eaglescliffe, Stockton On Tees, TS16 9AY |
| FINN, Anthony John RESIGNED | Director | 14 Oct 2022 | 19 Jun 2025 | England | November 1964 | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| GARVEY, Jonathan Charles RESIGNED | Director | 29 May 1998 | 24 Jul 2003 | England | April 1955 | 22/24 Marske Mill Lane, Saltburn By The Sea, Cleveland, TS12 1HR |
| GAVENS, Paul David, Dr RESIGNED | Director | 30 Jan 2004 | 11 Sep 2023 | United Kingdom | March 1953 | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| GOODFELLOW, Ian Frederick RESIGNED | Director | 05 Sep 1997 | 29 May 1998 | | January 1954 | Broadstone Cottage, John Martin Street, Haydon Bridge, Northumberland, NE47 6AB |
| HOGG, Peter Laurence RESIGNED | Director | | 12 May 1995 | | June 1920 | Rosemount, Cresswell Road, Hartlepool, Cleveland, TS26 0EG |
| HOWAT, Martyn John Rutland RESIGNED | Director | 02 Jun 2000 | 22 Jun 2007 | United Kingdom | March 1953 | Amblerthorne, Leazes Park, Hexham, Northumberland, NE46 3AX |
| IDLE, Edward Thomas RESIGNED | Director | 11 Jan 1994 | 06 Jun 1997 | | August 1937 | 19 High Street, Rippingale, Bourne, Lincolnshire, PE10 0SR |
| KENLEY, Neil RESIGNED | Director | 11 Apr 2008 | 31 Jul 2020 | United Kingdom | August 1960 | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| LUPTON, John Jeffrey Mark RESIGNED | Director | 24 Mar 1995 | 27 Jul 2015 | United Kingdom | May 1944 | 18 Brisbane Grove, Hartburn, Stockton On Tees, Cleveland, TS18 5BW |
| NORMAN, Ronald, Sir RESIGNED | Director | | 22 Nov 1996 | | April 1937 | Hart On The Hill, Dalton Piercy, Hartlepool, Cleveland, TS27 3HY |
| NORTON, Robert William RESIGNED | Director | 12 Dec 2017 | 10 Dec 2020 | England | October 1950 | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| QUARTERMAIN, Carl RESIGNED | Director | 08 Jun 2016 | 08 Jun 2017 | England | February 1967 | Community Heart, Ridley Street, Redcar, Cleveland, TS10 1TD, England |
| ROSE, David RESIGNED | Director | 01 Dec 2011 | 27 Jul 2015 | United Kingdom | March 1970 | The Phoenix Centre, Wilton International, Wilton, Redcar, Cleveland, TS10 4RG |
| SIMPSON, Katherine Susan RESIGNED | Director | 28 Mar 2003 | 23 Oct 2014 | United Kingdom | October 1961 | 1 The Coppice, Wynyard, Billingham, TS22 5QH |
| SMITH, Michael RESIGNED | Director | 08 Jun 2016 | 30 Apr 2019 | England | March 1958 | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| SPARKE, John Maurice RESIGNED | Director | 24 Nov 1995 | 24 Feb 2003 | | March 1940 | 2 The Coppice, Wynyard Park, Billingham, Stockton On Tees, TS22 5QH |
| SPRAY, Christopher James, Professor RESIGNED | Director | 22 Nov 1996 | 11 Jun 2004 | Scotland | July 1953 | 8 Ledcameroch Gardens, Dunblane, Perthshire, FK15 0GZ |
| STEPHEN, John Michael RESIGNED | Director | 05 Jul 1996 | 23 May 2003 | | August 1943 | 24 Waveney Grove, Skelton, Cleveland, TS12 2LS |
| STILL, Simon Jonathan Henry RESIGNED | Director | | 28 Jun 1999 | England | June 1949 | Monkend Hall, Croft-On-Tees, Darlington, DL2 2SJ |
| SZINTAI, Sylvia RESIGNED | Director | 01 Sep 2007 | 26 Apr 2011 | United Kingdom | November 1947 | 157 Normanby Road, South Bank, Middlesbrough, Cleveland, TS6 6SR |
| TOOZE, Bradley RESIGNED | Director | 01 Sep 2007 | 14 Dec 2020 | United Kingdom | September 1973 | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| VENUS, Christine Angela RESIGNED | Director | 15 Oct 2022 | 13 Jun 2024 | England | December 1966 | Innovation Centre, Vienna Court, Kirkleatham Business Park, Redcar, Cleveland, TS10 5SH, England |
| WATSON, Geoffrey Grainage RESIGNED | Director | 10 Apr 1992 | 08 Oct 1993 | | November 1928 | 1 Merton Avenue, Marton, Middlesbrough, Cleveland, TS4 2SQ |