| WRIGHT, Andrew William Banasick ACTIVE | Secretary | 29 Sep 2025 | | | | 333, Three D Systems Cir, Rock Hill, Sc, 29730, United States |
| GRAVES, Jeffrey ACTIVE | Director | 29 Aug 2025 | | United States | April 1961 | 333, Three D Systems Circle, Rock Hill, Sc 29730, United States |
| AUSTEN, Peter David RESIGNED | Secretary | 02 Apr 2001 | 26 Apr 2002 | | | Pippins, Popes Lane, Cookham Dean, Berkshire, SL6 9NY |
| LANGFIELD, David James RESIGNED | Secretary | 14 Jul 2008 | 29 Feb 2020 | | | 19, Piggottshill Lane, Harpenden, Hertfordshire, AL5 1LG |
| PELOPIDA, Mark Ernest RESIGNED | Secretary | 28 Sep 2007 | 15 Jul 2008 | | | 18 Green View Close, Bovingdon, Hemel Hempstead, Hertfordshire, HP3 0LE |
| SAMRA, Sarbjit Singh RESIGNED | Secretary | 26 Apr 2002 | 02 Aug 2002 | | | 25 Saint Andrews Close, Shepperton, Middlesex, TW17 8QJ |
| TAYLOR, Malcolm James RESIGNED | Secretary | 02 Aug 2002 | 28 Sep 2007 | | | 1 The Maynards, Broom, Biggleswade, Bedfordshire, SG18 9EU |
| TOLMAY, Hendricus RESIGNED | Secretary | 01 May 2020 | 09 Sep 2024 | | | 14, Mardleywood, Welwyn, AL6 0UX, England |
| CREECH, Jeffrey Donell RESIGNED | Director | 30 Apr 2024 | 29 Aug 2025 | United States | September 1962 | 333, Three D Systems Circle, Rock Hill, Sc 29730, United States |
| GRACE JR, Robert Mitchell RESIGNED | Director | 05 Jan 2005 | 27 Apr 2012 | United States | February 1947 | 10821 Coyle Circle, Charlotte, North Carolina 28277, Usa |
| GREGOIRE, Damon Joseph RESIGNED | Director | 17 Sep 2007 | 12 Dec 2014 | Usa | March 1968 | 2 Meadowsweet Lane, Greenville, Sc 29615, Usa |
| HULL, Theodore Alton RESIGNED | Director | 12 Dec 2014 | 09 Jun 2015 | Usa | June 1957 | 333, Three D Systems Circle, Rock Hill, South Carolina, Usa |
| JOHNSON, Andrew RESIGNED | Director | 27 Apr 2012 | 30 Apr 2024 | United States | October 1974 | 628, Bracket Street, Fort Mill, South Carolina, 29708, United States |
| JONES, Christopher John RESIGNED | Director | 14 Jul 2008 | 01 Jun 2011 | United Kingdom | January 1960 | 85 Butterfield Road, Wheathampstead, Hertfordshire, AL4 8PX |
| JONES, Fred Richard RESIGNED | Director | 05 Jan 2005 | 01 Mar 2007 | | November 1947 | 26430 N. Valley Oak Lane, Valencia, California 91381, FOREIGN, Usa |
| LANGFIELD, David James RESIGNED | Director | 08 Jun 2011 | 29 Feb 2020 | England | March 1974 | 2nd Floor,West & South Wing,The Maylands Building, 200 Maylands Avenue, Hemel Hempstead Industrial Estate, Hemel Hempstead, Hertfordshire, HP2 7TG, England |
| MCALEA, Kevin Patrick RESIGNED | Director | 25 Mar 2002 | 05 Jan 2005 | | January 1959 | 24595 Town Centre Drive, 3307, Valencia, California 91355, FOREIGN, Usa |
| SCHMIT, Richard Peter RESIGNED | Director | 02 Apr 2001 | 28 Jul 2003 | Netherlands | August 1960 | Jan Van Nassaustraat 12, The Hague, 2596 Bt, The Netherlands |
| STYKA, David Robert RESIGNED | Director | 09 Jun 2015 | 27 Feb 2017 | United States | January 1962 | 333, Three D Systems Circle, Rock Hill, South Carolina, Usa |
| TAYLOR, Malcolm James RESIGNED | Director | 02 Aug 2002 | 28 Sep 2007 | England | January 1963 | 1 The Maynards, Broom, Biggleswade, Bedfordshire, SG18 9EU |
| WHITE, G Peter RESIGNED | Director | 26 Aug 2003 | 15 Oct 2004 | | July 1940 | 24668 Brighton Drive, Unit C, Valencia, California 91355, FOREIGN, Usa |