| BELL, Stephen ACTIVE | LLP Designated Member | 14 Oct 2026 | | England | January 1969 | 6, Henwood Close, Middlesbrough, TS5 4NY, England |
| BIRCHAM, Keith ACTIVE | LLP Designated Member | 14 Jun 2017 | | United Kingdom | March 1946 | Acklam Park, Green Lane, Middlesbrough, Cleveland, TS5 7SL |
| BRUTON, Malcolm ACTIVE | LLP Designated Member | 25 Mar 2024 | | United Kingdom | June 1952 | Acklam Park, Green Lane, Middlesbrough, Cleveland, TS5 7SL |
| O'DONNELL, James Christopher William ACTIVE | LLP Designated Member | 14 Oct 2026 | | England | March 1981 | Acklam Park, Green Lane, Middlesbrough, Cleveland, TS5 7SL |
| TILSON, Phillip ACTIVE | LLP Designated Member | 01 Jul 2014 | | United Kingdom | December 1970 | Acklam Park, Green Lane, Middlesbrough, Cleveland, TS5 7SL |
| WEBBER, Ross Duerden ACTIVE | LLP Designated Member | 14 Oct 2026 | | England | April 1968 | Acklam Park, Green Lane, Middlesbrough, Cleveland, TS5 7SL |
| WOOD, Michael Andrew ACTIVE | LLP Designated Member | 14 Oct 2026 | | England | November 1962 | Acklam Park, Green Lane, Middlesbrough, Cleveland, TS5 7SL |
| BATES, Peter RESIGNED | LLP Designated Member | 26 Mar 2008 | 19 Mar 2024 | England | April 1944 | 34, Adcott Road, Acklam, Middlesbrough, North Yorkshire |
| BIRCHAM, Keith RESIGNED | LLP Designated Member | 26 Mar 2008 | 01 Apr 2011 | United Kingdom | March 1946 | 20, Sinnington Road, Thornaby, Stockton, Cleveland, TS17 0BX |
| BRYDON, Donald RESIGNED | LLP Designated Member | 26 Mar 2008 | 31 Mar 2025 | United Kingdom | August 1942 | Acklam Park, Green Lane, Middlesbrough, Cleveland, TS5 7SL |
| DAVISON, Laurence RESIGNED | LLP Designated Member | 26 Mar 2008 | 30 Mar 2026 | United Kingdom | March 1942 | Acklam Park, Green Lane, Middlesbrough, Cleveland, TS5 7SL |
| FLYNN, Bernard Thomas RESIGNED | LLP Designated Member | 26 Mar 2008 | 14 Jun 2017 | England | September 1953 | 11, Walton Avenue, Linthorpe, Middlesbrough, North Yorkshire, TS5 7RN |
| MCNEILL, Colin William RESIGNED | LLP Designated Member | 01 Jul 2012 | 14 Jun 2017 | United Kingdom | July 1960 | 29, Walworth Grove, Middlesbrough, Cleveland, TS5 8NN, England |
| MICKLEWRIGHT, Stuart RESIGNED | LLP Designated Member | 26 Mar 2008 | 01 Apr 2011 | England | October 1953 | 19, Matfen Avenue, Nunthorpe, Middlesbrough, North Yorkshire, TS7 0EQ |
| MOORE, John RESIGNED | LLP Designated Member | 01 Jul 2012 | 01 Jul 2014 | England | February 1948 | 19, Chapel Road, Billingham, Cleveland, TS23 1DX, England |
| THIRELL, Martin Paul RESIGNED | LLP Designated Member | 25 Mar 2024 | 31 Mar 2025 | England | August 1979 | Acklam Park, Green Lane, Middlesbrough, Cleveland, TS5 7SL |
| WARD, Richard Owen RESIGNED | LLP Designated Member | 01 Apr 2011 | 01 Jul 2012 | England | September 1943 | 7, Pine Hill, Coulby Newham, Middlesbrough, Cleveland, TS8 0RW, England |
| WRIGHT, Michael RESIGNED | LLP Designated Member | 01 Apr 2011 | 01 Jul 2012 | England | February 1946 | 21, Knaresborough Avenue, Marton-In-Cleveland, Middlesbrough, Cleveland, TS7 8LN, England |