| BATES, Katie Anne ACTIVE | Secretary | 01 Aug 2023 | | | | C/O Horiba Uk Ltd, Kyoto Close, Moulton Park Industrial Estate, Northampton, NN3 6FL, England |
| ALLEN, Declan Joseph ACTIVE | Director | 01 Apr 2026 | | England | September 1966 | C/O Horiba Uk Ltd, Kyoto Close, Moulton Park Industrial Estate, Northampton, NN3 6FL, England |
| ATZENI, Salvatore Hauptmann, Dr ACTIVE | Director | 17 Dec 2014 | | United States | December 1962 | C/O Horiba Uk Ltd, Kyoto Close, Moulton Park Industrial Estate, Northampton, NN3 6FL, England |
| MCLOSKEY, David, Dr ACTIVE | Director | 01 Dec 1997 | | United Kingdom | November 1967 | C/O Horiba Uk Ltd, Kyoto Close, Moulton Park Industrial Estate, Northampton, NN3 6FL, England |
| HESKINS, David John RESIGNED | Secretary | 11 May 2021 | 31 Jul 2023 | | | C/O Horiba Uk Ltd, Kyoto Close, Moulton Park Industrial Estate, Northampton, NN3 6FL, England |
| IMHOF, Robert Erich, Professor RESIGNED | Secretary | | 30 Nov 1997 | | | 46 Wood Ride, Potts Wood, Orpington, Kent, BR5 1PY |
| MCLOSKEY, David RESIGNED | Secretary | 01 Dec 1997 | 20 Aug 2003 | | | Flat 13-3 Fleming House, 134 Renfrew Street, Glasgow, G3 6SZ |
| MYERS, Anthony RESIGNED | Secretary | 20 Aug 2003 | 09 Jul 2018 | | | 468 Finchley Road, London, NW11 8DE |
| ADACHI, Masayuki, Dr RESIGNED | Director | 23 Jun 2010 | 23 May 2011 | Usa | November 1962 | 45, Finnieston Street, Glasgow, G3 8JU, Scotland |
| BENATTAR, Allen RESIGNED | Director | 20 Aug 2003 | 08 Sep 2009 | United Kingdom | October 1942 | Fyffe Northfield Avenue, Pinner, Middx, HA5 1AR |
| BIRCH, David James Stuart RESIGNED | Director | | 31 May 2020 | United Kingdom | December 1949 | 6 Rosemount Meadows, Bothwell, Glasgow, Lanarkshire, G71 8EL |
| HAKHU, Jai, Dr RESIGNED | Director | 23 May 2011 | 01 Apr 2020 | United States | July 1947 | 133, Finnieston Street, Glasgow, G3 8HB, Scotland |
| HALLAM, Anthony, Dr RESIGNED | Director | | 05 Dec 2006 | United Kingdom | April 1952 | 1 Hill Top Close, Maltby, Rotherham, South Yorkshire, S66 8QF |
| HAYAT, Gilbert, Dr RESIGNED | Director | 20 Aug 2003 | 01 Feb 2007 | | May 1944 | 148 Mason Drive, Metuchen Nj 08840, FOREIGN, Usa |
| IMHOF, Robert Erich, Professor RESIGNED | Director | | 30 Nov 1997 | United Kingdom | March 1944 | 46 Wood Ride, Potts Wood, Orpington, Kent, BR5 1PY |
| KAMINSKI, Ray RESIGNED | Director | 20 Aug 2003 | 11 Aug 2010 | | February 1948 | 2349 Vermont Avenue, Toms River, New Jersey Nj 08755, FOREIGN, Usa |
| KNIGHT, Stuart Alan RESIGNED | Director | 01 Apr 2020 | 31 Mar 2026 | England | April 1968 | C/O Horiba Uk Ltd, Kyoto Close, Moulton Park Industrial Estate, Northampton, NN3 6FL, England |
| MARITON, Michel, Dr RESIGNED | Director | 01 Feb 2007 | 23 Apr 2014 | France | September 1959 | 28 Rue Des Fonds Jouy-En-Josas, 78350, France |
| MILNE, Janet Evelyn RESIGNED | Director | 07 Apr 2005 | 16 May 2008 | United Kingdom | April 1972 | Flat 2-R 104 Marlborough Avenue, Broomhill, Glasgow, G11 7LE |
| NAKA, Nobuyuki RESIGNED | Director | 01 Apr 2023 | 29 Jan 2026 | Japan | August 1971 | C/O Horiba Uk Ltd, Kyoto Close, Moulton Park Industrial Estate, Northampton, NN3 6FL, England |
| NISHIKATA, Kentaro, Dr RESIGNED | Director | 01 Apr 2019 | 01 Apr 2023 | Japan | November 1974 | C/O Horiba Uk Ltd, Kyoto Close, Moulton Park Industrial Estate, Northampton, NN3 6FL, England |
| SLUTTER, Warren Stephen RESIGNED | Director | 23 Jun 2010 | 21 Nov 2014 | United States | April 1958 | 45, Finnieston Street, Glasgow, G3 8JU, Scotland |
| STEIN, Neil, Dr RESIGNED | Director | 20 Aug 2003 | 01 Feb 2007 | United States | January 1950 | 10 Claremont Drive, Maplewood, New Jersey Nj 07040, FOREIGN, Usa |
| THEPOT, James RESIGNED | Director | 09 May 2014 | 01 Apr 2019 | France | August 1959 | 133, Finnieston Street, Glasgow, G3 8HB, Scotland |