| HALL, Richard ACTIVE | Director | 03 Aug 2023 | | Scotland | November 1983 | 14, Langlands Place, Kelvin South Business Park, East Kilbride, Glasgow, G75 0YF, Scotland |
| FERGUS, John Graham RESIGNED | Secretary | 28 Sep 1989 | 10 Apr 1996 | | | Carleith, Duchal Road, Kilmacolm, Renfrewshire, PA13 4AS |
| KNIGHT, Joan RESIGNED | Secretary | 22 May 2017 | 18 Sep 2019 | | | Suez House, Grenfell Road, Maidenhead, Berkshire, SL6 1ES, England |
| MACLAY MURRAY & SPENS LLP RESIGNED | Nominee Secretary | 10 Apr 1996 | 22 May 2017 | | | 1, George Square, Glasgow, Scotland, G2 1AL, Great Britain |
| AUTRAND, Michel RESIGNED | Director | 30 Nov 2007 | 30 Nov 2008 | | September 1953 | 15 Rue Charles Alby, Chaville, 92 370, France |
| BARRETT, Lewis James RESIGNED | Director | 28 Jul 2017 | 01 Jan 2018 | England | June 1982 | Suez House, Grenfell Road, Maidenhead, SL6 1ES, England |
| BRADY, Steven David RESIGNED | Director | 17 Oct 2025 | 10 Mar 2026 | Scotland | April 1988 | 14, Langlands Place, Kelvin South Business Park, East Kilbride, Glasgow, G75 0YF, Scotland |
| BROWN, Andrew Charles RESIGNED | Director | 28 Jul 2017 | 01 Jan 2018 | England | May 1970 | Suez House, Grenfell Road, Maidenhead, SL6 1ES, England |
| BUER, Thomas Ralf Olaf RESIGNED | Director | 01 Jan 2018 | 18 Sep 2019 | Germany | August 1968 | Suez House, Grenfell Road, Maidenhead, SL6 1ES, England |
| DEHOUCK, Eric Thierry Armand Eugene RESIGNED | Director | 28 Nov 2013 | 29 Feb 2016 | Zurich, Switzerland | December 1976 | Stettbachstrasse 1, Dubendorf, Ch 8600, Switzerland |
| FERGUS, John Graham RESIGNED | Director | 28 Sep 1989 | 10 Apr 1996 | | July 1933 | Carleith, Duchal Road, Kilmacolm, Renfrewshire, PA13 4AS |
| FEVRIER, Francois RESIGNED | Director | 31 Jan 2002 | 30 Nov 2007 | | March 1961 | Stettbachstrasse 1, Dubendorf, CH 8600, Switzerland |
| GILLMANN, Benoit Marie Pierre RESIGNED | Director | 18 Sep 2019 | 28 Feb 2023 | France | April 1955 | 850, Avenue Louis Medard, Lunel, 34400, France |
| GRIENENBERGER, Hubert RESIGNED | Director | 30 Jun 2009 | 28 Nov 2013 | France | May 1950 | 27, Rue Schweizerberg, Goetzenbruck, 57620, France |
| HAUCHECORNE, Marc Andre Charles RESIGNED | Director | 30 Nov 2008 | 30 Jun 2009 | | May 1966 | 10, Avenue Ingres, Paris, 75016, France |
| JUPPEAU, Jean Pierre RESIGNED | Director | 10 Apr 1996 | 28 Jan 1999 | | November 1943 | 29 Rue Anatole, Montesson, 78360, France |
| KELLY, Thomas Archibald RESIGNED | Director | 01 Jan 2014 | 18 Sep 2019 | Scotland | September 1963 | 14, Langlands Place, Kelvin South Business Park, East Kilbride, Glasgow, G75 0YF, Scotland |
| LESZNIK, Gaspar RESIGNED | Director | 28 Jan 1999 | 25 Oct 2002 | | April 1952 | 747 Wyckoff Avenue, Wyckoff, New Jersey, 07481, America |
| MARSHALL, Simon RESIGNED | Director | 01 Apr 2020 | 17 Oct 2025 | England | September 1964 | 14, Langlands Place, Kelvin South Business Park, East Kilbride, Glasgow, G75 0YF, Scotland |
| NASSAU, Jean RESIGNED | Director | 25 Oct 2002 | 26 Nov 2003 | | May 1957 | 57 Bis-Rue Spontini, Paris, 75116, France |
| REEVE, David Terry RESIGNED | Director | 29 Feb 2016 | 01 Jan 2018 | England | March 1963 | 14, Langlands Place, Kelvin South Business Park, East Kilbride, Glasgow, G75 0YF, Scotland |
| WHEATLEY, James RESIGNED | Director | 28 Sep 1989 | 01 Jan 2014 | Scotland | May 1952 | 19 Station Drive, Prestwick, KA9 1HQ |
| WIEGART, Norbert Johannes RESIGNED | Director | 10 Apr 1996 | 31 Jan 2002 | | September 1953 | Rainackerweg 64, Wurenligen 5303, Switzerland |
| WRAY, Ian Alexander RESIGNED | Director | 27 Nov 1989 | 10 Apr 1996 | | June 1930 | 2 Ferry Row, Fairlie, Largs, Ayrshire, KA29 0AJ, Scotland |
| YEARRON, Douglas Robert RESIGNED | Director | 14 Jan 1991 | 10 Apr 1996 | | February 1940 | Lorabank, Glen Lora, Lochwinnoch, Renfrewshire, PA12 4DN |