| BURTON, Jonathan David ACTIVE | Secretary | 17 Jan 2013 | | | | Robert Bosch Uk Holdings Ltd, Broadwater Park, North Orbital Road, Denham, Uxbridge, UB9 5HJ, Gb-Gbr |
| FROEHLICH, Klaus Bernd ACTIVE | Director | 04 Dec 2024 | | Switzerland | November 1978 | Ellistones Lane, Greetland, Halifax, West Yorkshire, HX4 8NH |
| KIRN, Julia Viktoria ACTIVE | Director | 01 Jun 2026 | | Switzerland | September 1986 | Ellistones Lane, Greetland, Halifax, West Yorkshire, HX4 8NH |
| BOWYER, Peter James RESIGNED | Secretary | | 25 Apr 2001 | | | Appynest School Road, Risby, Bury St Edmunds, Suffolk, IP28 6RG |
| COBHAM, Graham RESIGNED | Secretary | 15 Mar 2010 | 17 Jan 2013 | | | Ellistones Lane, Greetland, Halifax, West Yorkshire, HX4 8NH |
| COBHAM, Graham RESIGNED | Secretary | 25 Apr 2001 | 22 Jan 2003 | | | 1 Coach House, Midegley Road, Mytholmroyd, West Yorkshire, HX7 5QY |
| DAVIDSON, Alan Lloyd RESIGNED | Secretary | 23 Jan 2003 | 03 Feb 2006 | | | 8 Abbey Court, Hade Edge, Holmfirth, West Yorkshire, HD9 2TG |
| NG, Robert RESIGNED | Secretary | 13 Feb 2006 | 13 Feb 2007 | | | 11 Everton Grove, Surrey Hills, Melbourne, Victoria 3127, Australia |
| RHODES, Helen Claire RESIGNED | Secretary | 13 Feb 2007 | 15 Mar 2010 | | | 25, High Meadows, Greetland, Halifax, West Yorkshire, HX4 8QF |
| BOWYER, Peter James RESIGNED | Director | | 25 Apr 2001 | | February 1950 | Appynest School Road, Risby, Bury St Edmunds, Suffolk, IP28 6RG |
| CASTLE, Andrew Ralph RESIGNED | Director | 17 Jan 2013 | 01 Apr 2015 | United Kingdom | August 1957 | Robert Bosch Uk Holdings Ltd, Broadwater Park, North Orbital Road, Denham, Uxbridge, UB9 5HJ, Gb-Gbr |
| EBERLE, Roland Marcel RESIGNED | Director | 01 Jan 2007 | 31 Dec 2011 | Switzerland | December 1953 | Haustrasse 17, 8570 Weinfelden, Switzerland |
| ELEUTHERI, Roger RESIGNED | Director | 08 Apr 2009 | 22 Oct 2012 | Switzerland | May 1975 | 3 Santorini, City Island, Leeds, West Yorkshire, LS12 1DP |
| HEESE, Marcel RESIGNED | Director | 30 Aug 2024 | 01 Jun 2026 | Switzerland | July 1978 | Ellistones Lane, Greetland, Halifax, West Yorkshire, HX4 8NH |
| HOFFMANN, Steffen Tobias, Dr RESIGNED | Director | 31 Mar 2015 | 01 Dec 2020 | England | November 1965 | Broadwater Park, North Orbital Road, Denham, Uxbridge, Middlesex, UB9 5HJ, England |
| IRELAND, Donald, Dr RESIGNED | Director | 25 Apr 2001 | 19 May 2004 | | May 1944 | The Mistle 7 Carr Lane, Shepley, Huddersfield, West Yorkshire, HD7 5AN |
| KELLER, Stephan Dieter RESIGNED | Director | 01 Jan 2012 | 17 Jan 2013 | Switzerland | April 1969 | Ellistones Lane, Greetland, Halifax, West Yorkshire, HX4 8NH |
| LEPPLE, Uta Tanja RESIGNED | Director | 01 Jan 2012 | 21 Jun 2024 | Switzerland | February 1965 | Ellistones Lane, Greetland, Halifax, West Yorkshire, HX4 8NH |
| MAHRLE, Gerhard RESIGNED | Director | 25 Apr 2001 | 31 Mar 2009 | | April 1957 | Saentisstrasse 29, 9030 Abtwil, Switzerland |
| MEYER, Anthony Guy Lawrence RESIGNED | Director | | 31 Dec 2000 | | September 1944 | The Maltings 53 St Peters Street, Duxford, Cambridge, Cambridgeshire, CB2 4RP |
| PROFT, Manfred RESIGNED | Director | 25 Apr 2001 | 28 Feb 2007 | | October 1949 | 5 Lowana Crescent, Forest Hill, Victoria 3131, Australia |
| RAJAKOBA, Vonjy Rakotonaivo RESIGNED | Director | 01 Dec 2020 | 31 Aug 2024 | England | February 1971 | Ellistones Lane, Greetland, Halifax, West Yorkshire, HX4 8NH |
| SCHIFFERLE, Peter Alfons RESIGNED | Director | 25 Apr 2001 | 01 Jan 2007 | | March 1944 | Burgstrasse 43, Weinfelden, 8570, Switzerland |
| SERRE, Marianne RESIGNED | Director | 01 May 2017 | 16 Sep 2020 | England | September 1964 | Ellistones Lane, Greetland, Halifax, West Yorkshire, HX4 8NH |
| STAEHELI, Beat RESIGNED | Director | 01 Apr 2009 | 31 Dec 2011 | Switzerland | January 1956 | Speicherstrasse 55, 8500 Frauenfield, Switzerland |
| TIMMINS, Ian Michael RESIGNED | Director | 22 Oct 2012 | 01 May 2017 | United Kingdom | September 1966 | Ellistones Lane, Greetland, Halifax, West Yorkshire, HX4 8NH |