| MIDDLEMASS, Laura Mary ACTIVE | Secretary | 18 Dec 2007 | | | | Plexus Corp (Uk) Ltd, Pinnacle Hill Industrial Estate, Kelso, Roxburghshire, TD5 8XX |
| THOMSON, Steven ACTIVE | Director | 02 Oct 2022 | | Scotland | December 1971 | Octagon Point, 5 Cheapside, London, EC2V 6AA, England |
| ZYCINSKI, Frank ACTIVE | Director | 30 Nov 2023 | | Scotland | April 1968 | Octagon Point, 5 Cheapside, London, EC2V 6AA, England |
| FORD, Timothy RESIGNED | Secretary | 18 Aug 1995 | 24 Jan 2002 | | | 9 Eden Park, Ednam, Kelso, Roxburghshire, TD5 7RG |
| KELLY, Mark RESIGNED | Secretary | 24 Jan 2002 | 22 Mar 2007 | | | 21 Springwood Rise, Kelso, Roxburghshire, TD5 8BE |
| MACKINNON, William RESIGNED | Secretary | 22 Mar 2007 | 18 Dec 2007 | | | 12 Queens Drive, Westerwood, Cumbernauld, Glasgow, G68 0HW |
| SIMCO COMPANY SERVICES LIMITED RESIGNED | Nominee Secretary | 05 May 1995 | 18 Aug 1995 | | | 41 Park Square, Leeds, West Yorkshire, LS1 2NS |
| ALLEN, Andrew RESIGNED | Director | 06 Mar 2002 | 18 Dec 2007 | | August 1957 | 12 Bury Hill, Winterbourne Down, Bristol, BS36 1AB |
| CARLTON, Kevin Andrew RESIGNED | Director | 01 Apr 1997 | 20 Jan 1998 | England | May 1960 | 21 Colvin Chase, Galleywood, Chelmsford, Essex, CM2 8QQ |
| DARROCH, Ronnie RESIGNED | Director | 30 Aug 2019 | 30 Nov 2023 | Scotland | February 1965 | Octagon Point, 5 Cheapside, London, EC2V 6AA, England |
| DARROCH, Ronnie RESIGNED | Director | 21 Nov 2012 | 01 Apr 2015 | Scotland | February 1965 | Equitable House, C/O, Mcclurenaismith, 47 King, William Street, London, EC4R 9AF |
| DICK, Alistair Robert John RESIGNED | Director | 24 Jan 2002 | 03 Oct 2005 | | October 1960 | 14 Havannah Court, Bridge Street, Kelso, Roxburghshire, TD5 7HX |
| FORD, Timothy RESIGNED | Director | 18 Aug 1995 | 10 Jun 2002 | United Kingdom | August 1957 | 9 Eden Park, Ednam, Kelso, Roxburghshire, TD5 7RG |
| HALL, David Jameson, Dr RESIGNED | Director | 18 Aug 1995 | 18 May 1998 | | May 1960 | 4 Sovereign Crescent, Colchester, Essex, CO3 3UZ |
| JARMAN, Michael Neil RESIGNED | Director | 18 Aug 1995 | 10 Jun 2002 | Scotland | April 1947 | Muirburn Sharplaw Road, Jedburgh, Roxburghshire, TD8 6SF |
| KAUFMAN, Joseph David RESIGNED | Director | 31 May 2001 | 30 Nov 2002 | | June 1957 | 1024 E.Kramer Lane, Appleton, Wi, 54915, Usa |
| KERR, Denis RESIGNED | Director | 01 Oct 2009 | 02 Oct 2022 | Scotland | December 1964 | Octagon Point, 5 Cheapside, London, EC2V 6AA, England |
| KERR, Denis RESIGNED | Director | 05 May 2008 | 04 Oct 2021 | Scotland | December 1964 | Octagon Point, 5 Cheapside, London, EC2V 6AA, England |
| MACKINNON, William RESIGNED | Director | 18 Dec 2007 | 21 Nov 2012 | United Kingdom | November 1957 | Plexus Corp (Uk) Ltd, Pinnacle Hill Industrial Estate, Kelso, Roxburghshire, TD5 8XX |
| MERRITT, Michael RESIGNED | Director | 03 Oct 2005 | 31 Mar 2006 | | May 1959 | 16 Mayfield Gardens, Kelso, Roxburghshire, TD5 7BD |
| MIHM, Oliver Kurt RESIGNED | Director | 01 Apr 2015 | 30 Aug 2019 | Germany | December 1971 | Plexus Corp, Pinnaclehill Industrial Estate, Kelso, Roxburghshire, TD5 8XX, United Kingdom |
| NUSSBAUM, John Leonard RESIGNED | Director | 31 May 2001 | 14 Aug 2002 | | April 1942 | 3532 Grand Meadows Drive, Appleton, Wisconsin, Usa |
| SABOL, Thomas Bernard RESIGNED | Director | 31 May 2001 | 30 Nov 2002 | | January 1959 | 3203 N.Country Run Drive, Appleton, Wi, 54915, Usa |
| SPEIRS, Alan James RESIGNED | Director | 01 Mar 2007 | 18 Dec 2007 | Scotland | September 1963 | 23 Barnton Park Gardens, Edinburgh, Midlothian, EH4 6HL |
| THOMSON, Steven RESIGNED | Director | 04 Oct 2021 | 04 Oct 2021 | Scotland | December 1971 | Octagon Point, 5 Cheapside, London, EC2V 6AA, England |
| SIMCO DIRECTOR A LIMITED RESIGNED | Nominee Director | 05 May 1995 | 18 Aug 1995 | | | 41 Park Square, Leeds, West Yorkshire, LS1 2NS |