| VISTRA COMPANY SECRETARIES LIMITED ACTIVE | Secretary | 21 Jun 2017 | | | | Ground Floor, Templeback, 10 Temple Back, Bristol, BS1 6FL, United Kingdom |
| BEECHING, Stephen Charles ACTIVE | Director | 05 Aug 2024 | | England | May 1969 | Fusion 2, 1100 Parkway, Whiteley, Fareham, PO15 7AB, England |
| STOCKDALE, Simon Harold ACTIVE | Director | 23 Nov 2011 | | United Kingdom | February 1966 | Fusion 2, 1100 Parkway, Solent Business Park, Whiteley, Hampshire, PO15 7AB, United Kingdom |
| WOTHERSPOON, John ACTIVE | Director | 27 Mar 2023 | | England | August 1966 | Fusion 2, Parkway, Whiteley, Fareham, PO15 7AB, England |
| BARBER, Christopher Martin RESIGNED | Secretary | 21 Sep 2001 | 06 Sep 2006 | | | 2 Gilman Crescent, Windsor, Berkshire, SL4 4YN |
| CORBEN, Darcy John RESIGNED | Secretary | 18 Nov 2008 | 23 Nov 2011 | | | 68, Victoria Road, Poole, Dorset, BH12 3AE, United Kingdom |
| SHERWOOD, Richard Stuart RESIGNED | Secretary | 06 Sep 2006 | 18 Nov 2008 | | | Troutbeck, Church Road, Shedfield, Southampton, SO32 2HW |
| SHERWOOD, Richard Stuart RESIGNED | Secretary | 29 Apr 1999 | 21 Sep 2001 | | | Troutbeck, Church Road, Shedfield, Southampton, SO32 2HW |
| STOCK, Mary Angela RESIGNED | Secretary | 23 Nov 2011 | 25 Feb 2016 | | | Fusion 2, 1100 Parkway, Solent Business Park, Whiteley, Hampshire, PO15 7AB, United Kingdom |
| WHEWELL, Murray Joseph RESIGNED | Secretary | | 29 Apr 1999 | | | 45 Lower Mead, Petersfield, Hampshire, GU31 4NR |
| AWCOCK, Ronald Arthur RESIGNED | Director | 25 Jan 1996 | 14 Feb 1997 | | January 1931 | La Majella Fermor Road, Crowborough, East Sussex, TN6 3AN |
| BRADBURN, Graham Clive RESIGNED | Director | 05 Feb 2013 | 14 Jan 2016 | England | September 1960 | Brook Road, Wimborne, Dorset, BH21 2BJ |
| BRADLEY, Russel Stuart RESIGNED | Director | 10 Mar 2008 | 17 Sep 2010 | England | August 1960 | 25, Atherley Court, Southampton, Hampshire, SO15 7NG |
| BRIERLEY, Michael Peter RESIGNED | Director | 21 Sep 2001 | 17 Sep 2010 | England | March 1954 | 30 Lyneham Gardens, Pinkneys Green, Maidenhead, Berkshire, SL6 6SJ |
| BUNTING, Colin Kenneth RESIGNED | Director | 25 Jun 1993 | 01 Jan 1997 | | January 1960 | 36a Hurlingham Court, Ranelagh Gardens, London, SW6 3UW |
| CARTER, Robert Henry RESIGNED | Director | 25 Jan 1996 | 09 Jul 1998 | | October 1936 | 41 Bowes Hill, Rowlands Castle, Hampshire, PO9 6BP |
| COOPER, Geoffrey Charles RESIGNED | Director | 21 Sep 2001 | 20 Jun 2005 | United Kingdom | March 1946 | Terrys Coppice Bradcutts Lane, Cookham Dean, Berkshire, SL6 9AA |
| CORBEN, Darcy John RESIGNED | Director | 18 Nov 2008 | 23 Nov 2011 | England | February 1970 | 68, Victoria Road, Poole, Dorset, BH12 3AE, United Kingdom |
| FARRER, Alan Roger Keith RESIGNED | Director | | 24 Mar 1993 | | October 1936 | White Downs Cooks Lane, Walderton, Chichester, West Sussex, PO18 9EF |
| GARVEY, Thomas Brendan RESIGNED | Director | 21 Mar 2013 | 01 Sep 2014 | United Kingdom | May 1968 | Brook Road, Wimborne, Dorset, BH21 2BJ |
| GISBORNE, Michael Colin RESIGNED | Director | 02 Jan 2001 | 23 Nov 2011 | England | April 1963 | 4 Perth Road, Southsea, Hampshire, PO4 8EU |
| GRIGG, Vanessa Lynn RESIGNED | Director | 24 Mar 1993 | 28 Jan 1994 | | April 1953 | 7 Far Meadow Way, Emsworth, Hampshire, PO10 7PA |
| HOLLAND, Peter Thomas RESIGNED | Director | 17 Sep 2010 | 04 Feb 2013 | England | August 1967 | Brook Road, Wimborne, Dorset, BH21 2BJ |
| IANNIELLO, Alfonzo RESIGNED | Director | 14 Feb 2022 | 26 Jun 2025 | Australia | August 1972 | Technology Park, 2 Second Avenue, Mawson Lakes, South Australia 5096, Australia |
| LONG, Paul David RESIGNED | Director | 21 Sep 2001 | 17 Sep 2010 | England | December 1954 | Waiheke, York Drove, Nomansland, Salisbury, Wiltshire, SP5 2BT |
| MCCARTER, Paul RESIGNED | Director | 17 Sep 2010 | 04 Feb 2013 | England | January 1969 | Brook Road, Wimborne, Dorset, BH21 2BJ |
| MCGURK, Donald Shields RESIGNED | Director | 20 May 2021 | 31 Jan 2022 | Australia | November 1961 | Technology Park, 2 Second Avenue, Mawson Lakes, SA 5095, Australia |
| MCSPARRON, Neil Martin RESIGNED | Director | 05 Apr 2016 | 23 Jul 2024 | United Kingdom | February 1969 | Fusion 2, 1100 Parkway, Solent Business Park, Whiteley, Hampshire, Po15 7ab, United Kingdom |
| MONGER, Edwin George, Mr. RESIGNED | Director | 12 Jan 1999 | 01 Mar 2001 | England | September 1944 | 49 West End, Sherborne St John, Basingstoke, Hampshire, RG24 9LE |
| PICKIN, Simon David RESIGNED | Director | 08 Sep 2014 | 14 Jan 2016 | England | January 1966 | Brook Road, Wimborne, Dorset, BH21 2BJ |
| RIBEIRO, Daryl Mark RESIGNED | Director | 07 Mar 2016 | 15 Aug 2016 | Usa | July 1970 | Fusion 2, 1100 Parkway, Solent Business Park, Whiteley, Hampshire, Po15 7ab, United Kingdom |
| ROSENZWEIG, Lance Evan RESIGNED | Director | 07 Mar 2016 | 28 Oct 2016 | Usa | October 1962 | Fusion 2, 1100 Parkway, Solent Business Park, Whiteley, Hampshire, Po15 7ab, United Kingdom |
| SHERWOOD, Richard Stuart RESIGNED | Director | 07 Jul 2000 | 18 Nov 2008 | | October 1944 | Troutbeck, Church Road, Shedfield, Southampton, SO32 2HW |
| WARWICK, Robb Curtis RESIGNED | Director | 14 Jan 2016 | 07 Mar 2016 | United States | August 1964 | 338, Pier Avenue, Hermosa Beach, Ca 90254, Usa |
| WHEWELL, Murray Joseph RESIGNED | Director | | 18 Nov 2008 | United Kingdom | April 1952 | Meadow House, West Meon, Petersfield, Hampshire, GU32 1LS |
| YOUNG, Roger Neville RESIGNED | Director | 10 Jun 1998 | 21 Sep 2001 | | September 1938 | Deane Cottage Dean, Sparsholt, Winchester, Hampshire, SO21 2LP |