| COLLETT, Ian Malcolm ACTIVE | Director | 31 Oct 2025 | | England | May 1943 | Qlar (Schenck Process Uk Limited), Unit D3 Bryans Close, Harworth, Harworth, DN11 8RY, England |
| SYMONDS, Andrew ACTIVE | Director | 20 Oct 2025 | | England | February 1967 | Qlar (Schenck Process Uk Limited), Unit D3 Bryans Close, Harworth, Harworth, DN11 8RY, England |
| VIDETT GOVERNANCE SERVICES LIMITED ACTIVE | Director | 15 Sep 2025 | | | | 37-43, Blagrave Street, Reading, RG1 1PZ, England |
| CUNNINGHAM, Neil Gillies RESIGNED | Secretary | 12 May 1994 | 18 May 1994 | | | 152 Bath Street, Glasgow, Strathclyde, G2 4TB |
| DEVINE, Anne RESIGNED | Secretary | 18 May 1994 | 31 Jan 1995 | | | 13 North Gardiner Street, Hyndland, Glasgow, Strathclyde, G11 5PU |
| FRAME, William RESIGNED | Secretary | 31 Jan 1995 | 19 Feb 1996 | | | 16 Calderbraes Avenue, Uddingston, Glasgow, Lanarkshire, G71 6DU |
| IBALL, Jonathan Michael RESIGNED | Secretary | 01 Jun 2011 | 16 Apr 2025 | | | Qlar (Schenck Process Uk Limited), Unit D3 Bryans Close, Harworth, Harworth, DN11 8RY, England |
| LEES, James Graham RESIGNED | Secretary | 11 Mar 1996 | 08 Apr 2003 | | | 10 Larch Grove, Silvertonhill, Hamilton, Lanarkshire, ML3 7NF |
| MCCALLUM, Angela Jane RESIGNED | Secretary | 08 Apr 2003 | 23 May 2011 | | | 24 Churchill Drive, Glasgow, G11 7LS |
| SWITZER, Amanda RESIGNED | Secretary | 23 May 2011 | 01 Jun 2011 | | | 12, Langside Court, Bothwell, Glasgow, G71 8NS, Scotland |
| ATKINSON, Geoffrey RESIGNED | Director | 09 Aug 1995 | 05 Dec 2007 | | February 1947 | Westfield, Crowle Road Eastoft, Scunthorpe, South Humberside, DN17 4PH |
| CUNNINGHAM, Neil Gillies RESIGNED | Director | 12 May 1994 | 18 May 1994 | | August 1964 | 152 Bath Street, Glasgow, Strathclyde, G2 4TB |
| FRAME, William RESIGNED | Director | 31 Jan 1995 | 14 Dec 2006 | | January 1932 | 16 Calderbraes Avenue, Uddingston, Glasgow, Lanarkshire, G71 6DU |
| HURST, Amanda RESIGNED | Director | 16 Nov 2007 | 28 Feb 2010 | | August 1971 | 17 Bluebell Wood Lane, Bramley, Rotherham, South Yorkshire, S66 3RX |
| IBALL, Jonathan RESIGNED | Director | 16 Nov 2007 | 16 Apr 2025 | England | July 1974 | Qlar (Schenck Process Uk Limited), Unit D3 Bryans Close, Harworth, Harworth, DN11 8RY, England |
| MCCOLL, James Allan RESIGNED | Director | 18 May 1994 | 21 Feb 2011 | Monaco | December 1951 | Rocabella, Avenue Princesse Grace, Monaco, Mc98000 |
| MURPHY, Michael Gerard RESIGNED | Director | 12 May 1994 | 18 May 1994 | | October 1960 | 3 Broomley Drive, Giffnock, Glasgow, Strathclyde, G46 6PD |
| ORPIN, John David RESIGNED | Director | 16 Nov 2007 | 03 Feb 2009 | | February 1938 | Homelands Smiths Green, Takeley, Bishops Stortford, Hertfordshire, CM22 6NS |
| SHILLING, David William RESIGNED | Director | 16 Nov 2007 | 13 Feb 2024 | England | June 1955 | 16 Burrow Walk, Kirkby In Ashfield, Nottinghamshire, NG17 8BU |
| THOMSON, William John RESIGNED | Director | 18 May 1994 | 31 Jan 1995 | Scotland | June 1958 | Clorwond Drymen Road, Balloch, Alexandria, Dunbartonshire, G83 8HT |
| THORBURN, Robert RESIGNED | Director | 31 Jan 1995 | 13 Dec 1996 | | September 1951 | 35 Wellesley Crescent, East Kilbride, Glasgow, Lanarkshire, G75 8TS |
| WALKER, Paul Ernest Andrew RESIGNED | Director | 31 Oct 2025 | 15 May 2026 | England | February 1943 | Qlar (Schenck Process Uk Limited), Unit D3 Bryans Close, Harworth, Harworth, DN11 8RY, England |
| WALKER, Paul Ernest Andrew RESIGNED | Director | 23 May 2011 | 03 Jul 2024 | England | February 1943 | Qlar (Schenck Process Uk Limited), Unit D3 Bryans Close, Harworth, Harworth, DN11 8RY, England |
| YATES, Stuart RESIGNED | Director | 16 Nov 2007 | 22 May 2026 | England | January 1947 | 4 Field Close, Darfield, Barnsley, South Yorkshire, S73 9BB |
| PS INDEPENDENT TRUSTEES LIMITED RESIGNED | Director | 25 Oct 2011 | 15 Sep 2025 | | | 126, Jermyn Street, London, SW1Y 4UJ, United Kingdom |