| HELLER, Andrew Robert ACTIVE | Secretary | 31 Mar 2000 | | | | 10, Portman Square, London, W1H 6AZ, England |
| HELLER, Andrew Robert ACTIVE | Director | 03 Dec 1999 | | England | August 1968 | 10, Portman Square, London, W1H 6AZ, England |
| HELLER, John Alexander ACTIVE | Director | 03 Dec 1999 | | United Kingdom | October 1966 | 10, Portman Square, London, W1H 6AZ, England |
| HELLER, Morven, Lady ACTIVE | Director | | | United Kingdom | July 1940 | 10, Portman Square, London, W1H 6AZ, England |
| KELLY, Amanda Jane RESIGNED | Secretary | 30 Sep 1993 | 31 Mar 2000 | | | 32 Wilkinson Street, Sheffield, South Yorkshire, S10 2GB |
| MALIA, Christine Anne RESIGNED | Secretary | 31 Dec 1991 | 30 Sep 1993 | | | 32 Wilkinson Street, Sheffield, South Yorkshire, S10 2GB |
| PARKINSON, Margaret RESIGNED | Secretary | | 31 Dec 1991 | | | 145 East Bawtry Road, Rotherham, South Yorkshire, S60 4LQ |
| ELLIOTT, Michael Habershon RESIGNED | Director | 15 May 2003 | 13 Mar 2006 | England | October 1937 | 8 Manchester Road, Sheffield, South Yorkshire, S10 5DF |
| HELLER, Michael Aron, Sir RESIGNED | Director | | 30 Jan 2023 | United Kingdom | July 1936 | 2nd Floor, Langham House, 12 Little Portland Street, London, W1W 8BJ, United Kingdom |
| HELLER, Nettie RESIGNED | Director | | 21 Jan 1997 | | November 1908 | 21 Cavendish Avenue, Harrogate, North Yorkshire, HG2 8HY |