| KELLY, Susan Kathleen ACTIVE | Secretary | 21 Dec 2007 | | | | Linde, Forge, 43 Church Street West, Woking, Surrey, GU21 6HT, England |
| ALLEN, Jennifer Frances Huihana ACTIVE | Director | 14 Feb 2025 | | England | October 1984 | Linde, Forge, 43 Church Street West, Woking, Surrey, GU21 6HT, England |
| BLAND, Julian Michael ACTIVE | Director | 17 May 2018 | | England | April 1967 | Linde, Forge, 43 Church Street West, Woking, Surrey, GU21 6HT, England |
| COSSINS, Christopher James ACTIVE | Director | 16 May 2013 | | England | November 1966 | Linde, Forge, 43 Church Street West, Woking, Surrey, GU21 6HT, England |
| SACHTLEBEN, Sebastian ACTIVE | Director | 13 Nov 2025 | | England | January 1981 | Linde, Forge, 43 Church Street West, Woking, Surrey, GU21 6HT, England |
| WILLIAMS, Sally Ann ACTIVE | Director | 14 Dec 2015 | | England | August 1970 | Linde, Forge, 43 Church Street West, Woking, Surrey, GU21 6HT, 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 |
| 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 |
| AIKEN, Philip Stanley RESIGNED | Director | | 28 Feb 1995 | | January 1949 | The Crest House, East Road St Georges Hill, Weybridge, Surrey, KT13 0LF |
| BEECROFT, Barry Ian RESIGNED | Director | 28 Feb 1995 | 31 Mar 2001 | | July 1946 | Crickets Hollow Pound Common, Kirdford, West Sussex, RH14 0NJ |
| BOTELLO ALBARRAN, Armando RESIGNED | Director | 01 Feb 2024 | 31 Oct 2025 | England | August 1967 | Linde, Forge, 43 Church Street West, Woking, Surrey, GU21 6HT, England |
| BRACKFIELD, Andrew Christopher RESIGNED | Director | 24 Aug 2007 | 31 Dec 2018 | England | March 1956 | The Linde Group, Priestley Centre 10 Priestley Rd, Surrey Research Park, Guildford, Surrey, GU2 7XY |
| CLUBB, Ian Mcmaster RESIGNED | Director | | 30 Sep 1994 | | January 1941 | Pond House, Hadley Green, Hertfordshire, EN5 4PS |
| DENNIS, Michael RESIGNED | Director | 01 Jul 2009 | 10 Apr 2012 | | November 1958 | Boc Limited, Priestley Centre, 10 Priestley Road, Guildford, Surrey, GU2 7XY |
| DENNIS, Michael RESIGNED | Director | 18 Mar 2009 | 18 Mar 2009 | | November 1958 | Boc Limited, Priestley Centre, 10 Priestley Road, Guildford, Surrey, GU2 7XY |
| DEVERS, Dorian Kevin Thomas RESIGNED | Director | 21 Jan 2013 | 28 Jul 2017 | England | December 1975 | The Linde Group The Priestley Centre, 10 Priestley Road, Surrey Research Park, Guildford, Surrey, GU2 7XY, England |
| FAIRLIE, John Cairns RESIGNED | Director | | 23 Nov 1998 | | May 1944 | The White House, Beech Hill, Mayford, Surrey, GU22 0SB |
| FERGUSON, Alan Murray RESIGNED | Director | 15 Sep 2005 | 23 Feb 2007 | | January 1958 | The Boc Group, Chertsey Road, Windlesham, Surrey, GU20 6HJ |
| FINKEN, Thorben, Dr RESIGNED | Director | 22 Dec 2008 | 20 Jan 2013 | England | May 1971 | The Linde Group, The Priestley Centre, 10 Priestley Road, Surrey Research Park, Guildford, Surrey, GU2 7XY |
| FORD, James Alexander RESIGNED | Director | 31 Jul 2000 | 31 Jan 2007 | | January 1948 | The Boc Group, Chertsey Road, Windlesham, Surrey, GU20 6HJ |
| GEARING, Richard John Newton RESIGNED | Director | 18 Mar 2009 | 17 Jan 2018 | | September 1962 | The Linde Group, The Priestley Centre, 10 Priestley Road, Guildford, Surrey, GU2 7XY, England |
| GHASEMI, Seifollah RESIGNED | Director | 05 Sep 1996 | 05 Dec 1997 | | September 1944 | 10 Pheasant Run, Gladstone, New Jersey, NJ 07934, America |
| GRAHAM JOHNSTON, Susan Patton RESIGNED | Director | 20 Jul 2015 | 10 Jul 2017 | England | September 1969 | The Linde Group, The Priestley Centre, 10 Priestley Road, Surrey Research Park, Guildford, Surrey, GU2 7XY, England |
| GRANT, Richard Stanley RESIGNED | Director | 20 Apr 1998 | 31 Dec 2002 | | May 1946 | 84-4 Meeker Road, Bernardsville, Nj 07924, United States |
| GREEN, Brian Charles RESIGNED | Director | | 31 Dec 1997 | | July 1940 | Aldebaran, Little Borough, Brockham, Surrey, RH3 7ND |
| HARVEY, Andrew John RESIGNED | Director | 12 Jul 2017 | 19 Jul 2019 | United Kingdom | January 1962 | The Linde Group, The Priestley Centre, 10 Priestley Road, Surrey Research Park, Guildford, Surrey, GU2 7XY, England |
| HUGGON, Michael Stewart RESIGNED | Director | 16 May 2007 | 28 May 2015 | England | February 1956 | Boc Limited, Boc Limited, Priestley Centre, 10 Priestley Road, Guildford, Surrey, GU2 7XY, England |
| HUNTON, Nigel David RESIGNED | Director | 27 Oct 2006 | 31 May 2007 | | September 1960 | The Boc Group, Chertsey Road, Windlesham, Surrey, GU20 6HJ |
| HUNTON, Nigel David RESIGNED | Director | 12 Feb 2003 | 22 Mar 2006 | | September 1960 | The Boc Group, Chertsey Road, Windlesham, Surrey, GU20 6HJ |
| ISAAC, Anthony Eric RESIGNED | Director | 17 Oct 1994 | 31 Oct 2006 | | November 1941 | The Boc Group, Chertsey Road, Windlesham, Surrey, GU20 6HJ |
| LEWIS, Nigel Andrew RESIGNED | Director | 22 Aug 2008 | 30 Jun 2009 | United Kingdom | April 1956 | The Linde Group The Priestley, Centre 10 Priestley Rd The Surrey, Research Park, Guildford, Surrey, GU2 7XY |
| MASTERS JR, Jerry Kent RESIGNED | Director | 01 Mar 2005 | 30 Sep 2011 | | December 1960 | The Linde Group The Priestley Centre, 10 Priestley Rd, The Surrey Research Park, Guildford, Surrey, GU2 7XY |
| MEDORI, Rene RESIGNED | Director | 31 Jul 2000 | 31 May 2005 | | September 1957 | Woodhaven Green, Wood Lane St George's Hill, Weybridge, Surrey, KT13 0JU |
| MERCER, James Andrew RESIGNED | Director | 05 Jan 2021 | 04 Sep 2023 | England | September 1967 | Linde, Forge, 43 Church Street West, Woking, Surrey, GU21 6HT, England |
| MOSTYN, Gareth RESIGNED | Director | 05 Dec 2007 | 22 Aug 2008 | | June 1972 | The Linde Group The Priestley Centre, 10 Priestley Road Surrey Research Park, Guildford, Surrey, GU2 7XY |
| PALMER, Nathan RESIGNED | Director | 10 Apr 2012 | 15 Apr 2016 | England | December 1970 | The Linde Group, The Priestley Centre, 10 Priestley Road, Guildford, Surrey, GU2 7XY, England |
| PANIKAR, John Mathew RESIGNED | Director | 20 Jun 2019 | 31 Dec 2020 | England | February 1968 | The Linde Group, The Priestley Centre, 10 Priestley Road, The Surrey Research Park, Guildford, Surrey, GU2 7XY, England |
| PATTERSON, Benjamin RESIGNED | Director | 11 Nov 2013 | 09 Oct 2024 | England | May 1962 | Linde, Forge, 43 Church Street West, Woking, Surrey, GU21 6HT, England |
| PFANN, Oliver Christian RESIGNED | Director | 12 Jul 2017 | 01 Mar 2019 | England | November 1968 | The Linde Group, The Priestley Centre, 10 Priestley Road, Surrey Research Park, Guildford, Surrey, GU2 7XY, England |
| RAJAGOPAL, Krishnamurthy, Dr RESIGNED | Director | 01 Feb 1996 | 27 Oct 2006 | | September 1953 | Highams Hall, The Boc Group, Chertsey Road, Windlesham, Surrey, GU20 6HJ |
| ROSENKRANZ, Franklin Daniel RESIGNED | Director | | 31 Aug 1999 | United Kingdom | May 1945 | Windrush, Coombe End, Kingston-Upon-Thames, Surrey, KT2 7DQ |
| SAITH, Vijay Kumar RESIGNED | Director | | 20 Nov 2002 | | March 1944 | Pendennis, Pyrford Road, West Byfleet, Surrey, KT14 6RQ |
| SMITH, Graham RESIGNED | Director | 22 Mar 2006 | 22 Dec 2006 | | September 1952 | The Boc Group, Chertsey Road, Windlesham, Surrey, GU20 6HJ |
| SPENCE, Patrick Charles Gordon RESIGNED | Director | 20 Nov 2002 | 21 Dec 2007 | | June 1958 | The Linde Group The Priestley Centre, 10 Priestley Road, Surrey Research Park, Surrey, GU2 7XY |
| THOMPSON, Stephen James RESIGNED | Director | 24 Feb 2025 | 13 May 2026 | England | November 1967 | Linde, Forge 43 Church Street West, Woking, Surrey, GU21 6HT, England |
| WALSH, John Lawrence RESIGNED | Director | 31 Mar 2004 | 01 Mar 2005 | | August 1955 | The Boc Group, Chertsey Road, Windlesham, Surrey, GU20 6HJ |
| WEISSBERG, Michael RESIGNED | Director | 18 Mar 2009 | 27 Mar 2013 | Germany | September 1963 | Linde Ag, Linde Ag, Klosterhofstrasse 1, Munich 80331, Germany |