| FOLLAND, Nick James ACTIVE | Secretary | 30 Sep 2022 | | | | Waterside House, 35 North Wharf Road, London, W2 1NW, England |
| BENNETT, Kevin John ACTIVE | Director | 24 Sep 2025 | | England | August 1969 | Waterside House, 35 North Wharf Road, London, W2 1NW, England |
| CHRISTENSEN, Lawrence Richard ACTIVE | Director | 30 Sep 2022 | | England | June 1943 | Waterside House, 35 North Wharf Road, London, W2 1NW, England |
| FREUDMANN, Alexander Michael ACTIVE | Director | 02 May 2023 | | England | October 1977 | Waterside House, 35 North Wharf Road, London, W2 1NW, England |
| RUSSELL, Keith ACTIVE | Director | 01 Oct 2020 | | England | August 1968 | Rosewood, Crockford Lane, Chineham Business Park, Basingstoke, RG24 8UB, England |
| BAKER, Ian Kenneth Hood RESIGNED | Secretary | 02 Dec 1994 | 03 Jul 1995 | | | 33 Atfield Grove, Windlesham, Surrey, GU20 6DP |
| BRACKFIELD, Andrew Christopher RESIGNED | Secretary | 20 Jul 2007 | 21 Dec 2007 | | | The Linde Group, Priestley Centre 10 Priestley Rd, Surrey Research Park, Guildford, Surrey, GU2 7XY |
| HUNT, Carol Anne RESIGNED | Secretary | 12 Feb 1999 | 02 Oct 2006 | | | The Boc Group, Chertsey Road, Windlesham, Surrey, GU20 6HJ |
| KELLY, Susan Kathleen RESIGNED | Secretary | 21 Dec 2007 | 30 Sep 2022 | | | Linde, Forge, 43 Church Street West, Woking, Surrey, GU21 6HT, England |
| LARKINS, Sarah Louise RESIGNED | Secretary | 03 Oct 2006 | 20 Jul 2007 | | | 11 Bluebell Road, Lindford, Bordon, Hampshire, GU35 0YN |
| PAVEY, David Gordon RESIGNED | Secretary | | 02 Dec 1994 | | | 28 Malthouse Close, Church Crookham, Fleet, Hampshire, GU13 0TB |
| SMALL, Jeremy Peter RESIGNED | Secretary | 03 Jul 1995 | 12 Feb 1999 | | | Cherry Trees, West Heath, Pirbright, Surrey, GU24 0JQ |
| BOUSFIELD, Michael Richard RESIGNED | Director | 18 Mar 2009 | 30 Nov 2014 | England | October 1953 | Rosewood, Crockford Lane, Chineham Business Park, Basingstoke, Hampshire, RG24 8UB |
| BOWLES, Simon Alan RESIGNED | Director | 13 Nov 1997 | 28 Jul 1999 | United Kingdom | August 1957 | Border Hill, Doras Green Lane Dippenhall, Farnham, Hampshire, GU10 5DU |
| BRACKFIELD, Andrew Christopher RESIGNED | Director | 18 Mar 2009 | 31 Dec 2018 | England | March 1956 | The Linde Group, Priestley Centre 10 Priestley Rd, Surrey Research Park, Guildford, Surrey, GU2 7XY |
| BRINSDEN, Peter Graham RESIGNED | Director | | 28 Jul 1999 | United Kingdom | August 1949 | The Holly Bank, Church Lane, Rowledge Farnham, Surrey, GU10 4EL |
| CHAMBERS, Michael Ian RESIGNED | Director | 18 Mar 2009 | 30 Sep 2023 | | February 1967 | Gist Limited, Rosewood, Crockford Lane, Chineham Business Park, Basingstoke, Hampshire, RG24 8UB, England |
| DAVIS, Paul Anthony RESIGNED | Director | | 29 Aug 1997 | | March 1947 | 9 Sonning Close, Basingstoke, Hampshire, RG22 5JJ |
| DOWLING JONES, Sean RESIGNED | Director | 31 Mar 2025 | 01 Oct 2025 | England | February 1972 | Waterside House, 35 North Wharf Road, London, W2 1NW, England |
| FLYNN, Michael Kevin RESIGNED | Director | 28 Jul 1999 | 31 Aug 2019 | United Kingdom | March 1961 | Gist Limited, Rosewood Crockford Lane, Chineham Business Park, Basingstoke, Hampshire, RG24 8UB |
| GWYNN, Martin Alistair RESIGNED | Director | 13 Nov 1997 | 01 Jul 2020 | England | July 1964 | Gist Limited, Rosewood, Crockford Lane,, Chineham Business Park, Basingstoke, Hampshire, RG24 8UB |
| HAY, Nicholas Daniel RESIGNED | Director | 30 Sep 2023 | 31 Mar 2025 | England | April 1974 | Waterside House, 35 North Wharf Road, London, W2 1NW, England |
| HODGKINS, Andrew William RESIGNED | Director | 18 Mar 2009 | 28 Sep 2012 | England | November 1961 | Gist Limited, Rosewood, Crockford Lane,, Chineham Business Park, Basingstoke, Hampshire, RG24 8UB |
| KANE, Jack RESIGNED | Director | | 06 Feb 1993 | | April 1941 | 11 Evedon, Birch Hill, Bracknell, Berkshire, RG12 7NF |
| PANIKAR, John Mathew RESIGNED | Director | 16 Jun 2020 | 31 Dec 2020 | England | February 1968 | The Linde Group, The Priestley Centre, 10 Priestley Road, The Surrey Research Park, Guildford, Surrey, GU2 7XY, England |
| ROSENKRANZ, Franklin Daniel RESIGNED | Director | | 31 Aug 1999 | United Kingdom | May 1945 | Windrush, Coombe End, Kingston-Upon-Thames, Surrey, KT2 7DQ |
| SMITH, Graham RESIGNED | Director | | 31 Oct 1997 | | September 1952 | 96 Whitedown Lane, Alton, Hampshire, GU34 1QR |
| SWEENEY, Mark RESIGNED | Director | 28 Jul 1999 | 30 Sep 2020 | | January 1957 | Gist Limited, Rosewood, Crockford Lane,, Chineham Business Park, Basingstoke, Hampshire, RG24 8UB |
| WRIGHT, George Gordon RESIGNED | Director | 30 Sep 2022 | 31 Mar 2023 | United Kingdom | September 1966 | Waterside House, 35 North Wharf Road, London, W2 1NW, England |