| QUINN, Gerald Peter ACTIVE | Secretary | 06 Sep 2001 | | | | 15 Dobcroft Close, Sheffield, South Yorkshire, S11 9LL |
| BINGLEY, Adam ACTIVE | Director | 23 Mar 2026 | | United Kingdom | July 1991 | Unit 3, South West Centre, Troutbeck Road, Sheffield, S8 0JR |
| BROADBENT, Thomas Mark ACTIVE | Director | 11 Apr 2019 | | England | January 1987 | Aes Engineering Limited, Mill Close, Bradmarsh Business Park, Rotherham, S60 1BZ, England |
| CANN, Oliver Edwin Robert ACTIVE | Director | 23 Mar 2026 | | United Kingdom | April 1982 | Unit 3, South West Centre, Troutbeck Road, Sheffield, S8 0JR |
| JENKINS, Martin Alexander ACTIVE | Director | 01 Aug 2026 | | England | October 1968 | Aes Engineering Ltd, Bradmarsh Business Park, Mill Close, Rotherham, West Yorkshire, S60 1BZ, England |
| QUINN, Gerald Peter ACTIVE | Director | | | England | March 1959 | 15 Dobcroft Close, Sheffield, South Yorkshire, S11 9LL |
| SHAW, Stephen Martin ACTIVE | Director | 24 Mar 2025 | | England | February 1958 | Aes Engineering Limited, Mill Close, Bradmarsh Business Park, Rotherham, S60 1BZ, England |
| QUINN, Ann Carmel RESIGNED | Secretary | 24 Sep 1998 | 06 Sep 2001 | | | 15 Dobcroft Close, Sheffield, S11 9LL |
| QUINN, Gerald Peter RESIGNED | Secretary | | 24 Sep 1999 | | | 15 Dobcroft Close, Sheffield, South Yorkshire, S11 9LL |
| BRIDGE, Gordon Wilson RESIGNED | Director | 16 Aug 2001 | 11 Apr 2019 | England | October 1944 | Primrose Cottage Farm Kirk Edge Road, High Bradfield, Sheffield, S6 6LJ |
| BROWN, Robert Alun RESIGNED | Director | | 24 Sep 1998 | | February 1961 | Moorwood Barn, Flash Lane,Stannington, Sheffield, South Yorkshire, S6 6GR |
| CARTER, Michael James RESIGNED | Director | 28 Feb 2017 | 23 Mar 2026 | England | July 1967 | Unit 3, South West Centre, Troutbeck Road, Sheffield, S8 0JR |
| DODD, Stephen Martin RESIGNED | Director | 19 Sep 2016 | 14 Mar 2025 | England | January 1956 | Unit 3, South West Centre, Troutbeck Road, Sheffield, S8 0JR |
| MCKERVEY, Martin James Claude RESIGNED | Director | 11 Apr 2019 | 30 Mar 2026 | England | August 1962 | Aes Engineering Limited, Mill Close, Bradmarsh Business Park, Rotherham, S60 1BZ, England |
| WOOD, Martin Richard RESIGNED | Director | 08 Sep 2015 | 08 Mar 2016 | England | October 1969 | Global Technology Centre, Mill Close, Rotherham, South Yorkshire, S60 1BZ, England |