| HARRISON, Deborah Louise ACTIVE | Secretary | 04 Sep 2019 | | | | 4 Whitehall Court, Westminster, London, SW1A 2ES |
| BEAVER, Henry James ACTIVE | Director | 06 Jun 2024 | | United Kingdom | June 1978 | The Warehouse, Cartmel Drive, Shrewsbury, Shropshire, SY1 3TB, United Kingdom |
| COX, Matthew ACTIVE | Director | 10 Oct 2025 | | England | June 1994 | Bhc Ltd, Medwyn Park, Edinburgh Road, Carnwath, Lanark, ML11 8HS, Scotland |
| DENHAM, Mark ACTIVE | Director | 17 Feb 2011 | | England | March 1969 | Elland Steel Structures Ltd, Philmar House, Gibbet Street, Halifax, West Yorkshire, HX2 0AR, England |
| DORER, Stephen Kenneth ACTIVE | Director | 07 Apr 2022 | | England | January 1986 | Deconstruct Uk, Burdett House, Buckingham Street, London, WC2N 6DU, England |
| DURAND, Christopher Robert, Dr ACTIVE | Director | 07 Apr 2022 | | Northern Ireland | January 1968 | Fisher House, Main Street, Ballinamallard, Enniskillen, County Fermanagh, BT94 2FY, Northern Ireland |
| HENDRY, Steven ACTIVE | Director | 10 Feb 2023 | | Scotland | September 1978 | Cairnhill Structures, Sun Works, Waverley Street, Coatbridge, ML5 2BE, Scotland |
| HILL, Iain Gordon ACTIVE | Director | 06 Jul 2021 | | England | December 1967 | Severfield (Uk) Ltd, Watson House, Lostock Lane, Lostock, Bolton, BL6 4BL, England |
| KELLY, Stephen Mark ACTIVE | Director | 11 May 2026 | | Scotland | November 1983 | Bhc Ltd, Medwyn Park, Edinburgh Road, Carnwath, Lanark, ML11 8HS, Scotland |
| O'SULLIVAN, Ronan ACTIVE | Director | 09 Oct 2025 | | Ireland | May 1981 | Murphy International Limited, Great Connell, Newbridge, Co. Kildare W12 Hd6, Ireland |
| OUTTERIDGE, Timothy James ACTIVE | Director | 26 Jun 2014 | | England | September 1958 | 3, Reid Street, Christchurch, BH23 2BT, England |
| SIMMONS, Gary ACTIVE | Director | 25 Jun 2020 | | England | January 1959 | 5, Horrocks Fold, Edgworth, Bolton, Lancashire, BL7 0PF, England |
| BALLARD, David Edward RESIGNED | Secretary | | 31 Jul 1994 | | | 10 Brentham Way, Ealing, London, W5 1BJ |
| RICH, Marion Constance RESIGNED | Secretary | 01 Aug 1994 | 04 Sep 2019 | | | RH1 |
| ANDERSON, Kenneth RESIGNED | Director | 25 Jan 1995 | 08 May 2002 | | April 1937 | Leaward House, Folkton, Scarborough, Yorkshire, YO11 3UG |
| ARBUCKLE, Gerard RESIGNED | Director | 19 Feb 2009 | 16 Aug 2010 | United Kingdom | December 1958 | Drumbeg Lodge, Gartness Road, Drymen, Glasgow, G63 0DW |
| BADGE, James Geoffrey RESIGNED | Director | 08 Feb 2006 | 17 Feb 2011 | England | November 1961 | The Quaker House, Scale House Woodlands Rylstone, Skipton, West Yorkshire, BD23 6ER |
| BARRETT, Richard Braithwaite RESIGNED | Director | 25 Jan 1995 | 10 May 2017 | England | March 1957 | Chevin Hall Farm, West Chevin Road, Otley, West Yorkshire, LS21 3DL |
| BEETON, Jeremy John, Dr RESIGNED | Director | 14 Oct 1992 | 26 Oct 1994 | United Kingdom | March 1953 | Moidart Mill Wynd, Staindrop, Darlington, County Durham, DL2 3JR |
| BIDGOOD, Derek Martin RESIGNED | Director | | 09 Oct 1992 | | February 1930 | The Firs Crag Lane, Huby, Leeds, West Yorkshire, LS17 0BW |
| BINGHAM, David Frederick RESIGNED | Director | 17 Aug 1993 | 30 Oct 2003 | England | March 1942 | High Wood House, Newstead Abbey Park, Nottingham, Nottinghamshire, NG15 8GD |
| BINGHAM, Simon David RESIGNED | Director | 10 Oct 2013 | 06 Jun 2024 | England | April 1970 | Maple House, Moorgreen Industrial Park, Engine Lane, Newthorpe, Nottingham, NG16 3QU, England |
| BINGHAM, Simon David RESIGNED | Director | 16 Aug 2010 | 09 May 2013 | England | April 1970 | Moorgreen Industrial Park, Moorgreen, Nottinghamshire, NG16 3QU |
| BINGHAM, Simon David RESIGNED | Director | 10 May 2000 | 27 May 2004 | | April 1970 | Mayfield Cottage Main Street, Farnsfield, Newark, Nottinghamshire, NG22 8EA |
| BLACKWELL, John Charles RESIGNED | Director | 18 Oct 2007 | 16 Aug 2010 | Wales | January 1951 | 14 Court Crescent, Bassaleg, Newport, Gwent, NP10 8NH |
| BLACKWELL, John Charles RESIGNED | Director | 07 May 1997 | 10 May 2000 | Wales | January 1951 | 14 Court Crescent, Bassaleg, Newport, Gwent, NP10 8NH |
| BONE, Alexander Anthony Henry RESIGNED | Director | 01 Dec 1994 | 06 May 1998 | | June 1942 | 17 Lethington Road, Giffnock, Glasgow, Lanarkshire, G46 6TD |
| BONE, Alexander Anthony Henry RESIGNED | Director | | 01 Dec 1994 | | June 1942 | 17 Lethington Road, Giffnock, Glasgow, Lanarkshire, G46 6TD |
| BONE, Colin Alexander RESIGNED | Director | 17 Feb 2005 | 11 May 2006 | United Kingdom | February 1974 | End House, Goose Green, Gullane, East Lothian, EH31 2BA |
| BOYD, Simon Peter RESIGNED | Director | 25 Feb 2003 | 15 May 2008 | | February 1961 | 5 Glendale Court, Christchurch, Dorset, BH23 2AB |
| BUNTING, Robert William RESIGNED | Director | 10 May 2018 | 07 Apr 2022 | England | April 1962 | The Angle Ring Co Ltd Bloomfield Road, The Angle Ring Co Ltd, Bloomfielf Road, Tipton, OX4 9EH, England |
| BURTON, Timothy John RESIGNED | Director | 06 Jul 2021 | 27 Mar 2024 | England | May 1955 | 47, The Fairway, Tadcaster, North Yorkshire, LS24 9HL, England |
| CALLAGHAN, Robert RESIGNED | Director | 07 Apr 2022 | 26 Jul 2024 | Scotland | August 1965 | Millar Arkwright Engineering Services Ltd, 10, Arkwright Way, North Newmoor Industrial Estate, Irvine, KA11 4JU, Scotland |
| CAMPBELL, Kevin Martin RESIGNED | Director | 18 May 2010 | 13 Oct 2011 | England | August 1965 | Barnsley Road, Wombwell, South Yorkshire, S73 8DS |
| CANTWELL, Paul Joseph RESIGNED | Director | 10 May 2018 | 12 Mar 2019 | Ireland | October 1959 | W+H Steel And Roofing Systems Ltd, Kilkenny Road, Castlecomer, Co. Kilkenny, Ireland |
| CASTLEDINE, Colin Victor RESIGNED | Director | 05 Jun 1997 | 25 Feb 2003 | | December 1945 | The Cottage, Creamery Lane, Parwich, Ashbourne, Derbyshire, DE6 1QB |
| COLLINS, Allan Frederick RESIGNED | Director | | 13 Jul 2000 | | June 1938 | Oak Lodge, Dauntsey Green, Chippenham, Wiltshire, SN15 4JE |
| CONEY, Wendy Yvonne Joy RESIGNED | Director | 07 Feb 2012 | 17 Jun 2025 | England | April 1962 | Honington Grange, Frinkley Road, Honington, Grantham, Lincolnshire, NG32 2PS, England |
| CROOKS, James Mc Gill RESIGNED | Director | 16 Sep 2003 | 13 Feb 2005 | Northern Ireland | October 1949 | 21 Orpinsmill Road, Ballyclare, County Antrim, BT39 0SX, N Ireland |
| DANDO, Kim Nigel RESIGNED | Director | 08 May 2002 | 16 May 2006 | United Kingdom | April 1955 | Acacia House 159 Hinton Road, Hereford, Herefordshire, HR2 6BW |
| DEWHURST, Robert Malcolm RESIGNED | Director | 09 May 2001 | 29 May 2003 | | July 1942 | 10 Wincanton Drive, Bolton, Lancashire, BL1 7PG |
| DEWHURST, Robert Malcolm RESIGNED | Director | | 10 May 1995 | | July 1942 | 10 Wincanton Drive, Bolton, Lancashire, BL1 7PG |
| DUGGAN, Bernard Joseph RESIGNED | Director | 14 May 2015 | 11 May 2016 | Ireland | August 1969 | Duggan Steel, The Square, Millstreet, County Cork, Ireland |
| DURAND, Christopher, Dr RESIGNED | Director | 23 Feb 2012 | 14 May 2015 | Northern Ireland | January 1968 | 2, Castle Manor, Kesh, Enniskillen, County Fermanagh, BT93 1RT, Northern Ireland |
| ELLIOTT, Richard RESIGNED | Director | 17 Oct 2008 | 02 Mar 2012 | United Kingdom | February 1964 | 44 Dacres Road, Forest Hill, London, SE23 2NR |
| EVANS, Robert William RESIGNED | Director | 06 Jun 2024 | 02 Jun 2025 | England | February 1972 | Severs House, Dalton Airfield Industrial Estate, Dalton, Thirsk, North Yorkshire, YO7 3JN, England |
| FAREHAM, Stephen George Thomas RESIGNED | Director | 09 Jul 1998 | 14 May 2009 | United Kingdom | August 1950 | 4 Highview Close, Darfield, Barnsley, South Yorkshire, S73 9AR |
| FEWSTER, Stephen Michael Charles RESIGNED | Director | 29 May 2003 | 08 Feb 2006 | United Kingdom | January 1948 | 5 Normans Way, Sandal, Wakefield, West Yorkshire, WF2 6SS |
| FISHER, Thomas Ernest RESIGNED | Director | 21 Jan 2008 | 19 Feb 2009 | Northern Ireland | March 1952 | Rossclare House, Killadeas, Irvines Town, Fermanagh, BT94 1SF |
| FISHER, Thomas Ernest RESIGNED | Director | 15 Feb 2005 | 22 Feb 2007 | Northern Ireland | March 1952 | Rossclare House, Killadeas, Irvines Town, Fermanagh, BT94 1SF |
| FISHER, William Robert RESIGNED | Director | 06 May 1998 | 23 Jan 2001 | | March 1950 | Goblusk, Ballinamallard, Enniskillen, County Fermanagh, BT94 2LW |
| GETTINS, Howard James RESIGNED | Director | | 07 May 1997 | | August 1944 | 25 The Woodlands, Lostock, Bolton, BL6 4JD |
| GIBSON, Thomas Keith RESIGNED | Director | | 05 May 1993 | | May 1933 | 21 The Spinney, Knaresborough, North Yorkshire, HG5 0TD |
| GOLDBERG, Thomas Guy RESIGNED | Director | 12 Jul 2001 | 13 Jul 2011 | United Kingdom | August 1944 | Catlaine Manor North Cattleholmes, Wansford, Driffield, YO25 8NW |
| GOLDBERG, Thomas Guy RESIGNED | Director | 10 May 1995 | 10 May 2000 | United Kingdom | August 1944 | Catlaine Manor North Cattleholmes, Wansford, Driffield, YO25 8NW |
| GOVER, William John Sudmersen RESIGNED | Director | | 10 May 1995 | | October 1944 | 16 Hadrian Way, Sandiway, Northwich, Cheshire, CW8 2JR |
| GOVIER, Stephen Philip William RESIGNED | Director | 06 Jul 2021 | 27 Jan 2023 | England | February 1966 | St Clements House, St. Clements Road, Poole, BH12 4GP, England |
| GOVIER, Stephen Philip William RESIGNED | Director | 09 May 2013 | 26 Jun 2014 | United Kingdom | February 1966 | St Clements House, St. Clements Road, Poole, Dorset, BH12 4GP, England |
| GRAHAM, David RESIGNED | Director | 08 Feb 1994 | 25 Jan 1995 | | February 1953 | 12 Fairview Drive, Whitehead, Carrickfergus, County Antrim, BT38 9NT |
| GRAHAM SERVICE, David George RESIGNED | Director | 08 May 1996 | 07 May 1997 | | September 1954 | 10 Loch View, Forres, Morayshire, IV36 0RR |
| GREENHALGH, Matthew RESIGNED | Director | 27 Mar 2024 | 06 Jun 2024 | England | May 1967 | Taziker Industrial, Unit 8b-D, Frontier Park, Blackburn, Lancashire, BB1 3AL, United Kingdom |
| GREGG, Stephen John RESIGNED | Director | 14 May 2015 | 10 May 2017 | Northern Ireland | May 1961 | Gregg & Patterson Riverside Works, Ballyskeagh Road, Lambeg, Lisburn, BT27 5TD, Northern Ireland |
| GREGG, Stephen John Alexander RESIGNED | Director | 10 May 2000 | 29 May 2003 | | May 1961 | 20 The Oaks, Newtownards, County Down, BT23 8GZ |
| HALEY, William John RESIGNED | Director | 05 May 1993 | 06 May 1998 | | November 1946 | Orchard Farm, Cheddar Road, Wedmore, Somerset, BS28 4JA |
| HALL, Andrew Clifford RESIGNED | Director | 10 May 2018 | 06 Jul 2021 | England | January 1962 | Watson House, Lostock Lane, Lostock, Bolton, Lancashire, BL6 4BL, England |
| HAMILTON, John Mackenzie RESIGNED | Director | | 18 Feb 1993 | | September 1950 | Lennoxbrae, Ordiquish, Fochbers, Moray, IV32 7PE |
| HAMILTON, Michael RESIGNED | Director | 07 May 1997 | 31 Dec 2000 | | September 1945 | 30 Derby Road, Ansdell, Lytham St Annes, Lancashire, FY8 4BZ |
| HARRISON, Robert Norman RESIGNED | Director | 27 May 2004 | 26 Mar 2009 | United Kingdom | July 1943 | 1 Central Walk, Wokingham, Berkshire, RG40 1AJ |
| HARYOTT, Richard Baskcomb RESIGNED | Director | 25 Jan 1995 | 07 May 1997 | United Kingdom | March 1941 | Wellpond Cottage, Brickendon, Hertford, Hertfordshire, SG13 8NU |
| HASSON, Patrick Dennis RESIGNED | Director | 10 May 2017 | 07 Jul 2020 | Northern Ireland | November 1945 | 17, Glebe Road, Rasharkin, Ballymena, BT44 8SS, Northern Ireland |
| HASSON, Patrick Dennis RESIGNED | Director | | 08 Feb 1994 | Northern Ireland | November 1945 | 334 Townhill Road, Rasharkin, Ballymena, County Antrim, BT44 8RP |
| HENDRY, Steven RESIGNED | Director | 06 Sep 2018 | 07 Apr 2022 | Scotland | September 1978 | Cairnhill Structures, Sun Works, Waverley Street, Coatbridge, ML5 2BE, Scotland |
| HERNON, Anthony George RESIGNED | Director | 16 May 2006 | 18 May 2010 | England | November 1948 | Beechwood Cottage, Hodgetts Lane Berkswell, Coventry, West Midlands, CV7 7DG |
| HEYS, Christopher James RESIGNED | Director | 02 Feb 2012 | 09 May 2013 | United Kingdom | March 1967 | Whinney Lane Barn, Whinney Lane, Mellor, Blackburn, BB2 7EH, England |
| HODGSON, William Ian RESIGNED | Director | 15 May 2008 | 14 May 2009 | | October 1951 | Mabels Cottage, Main Street, Shipton By Beningbrough, York, YO30 1AA |
| HOLMES, Andrew John RESIGNED | Director | 16 Jun 2005 | 21 Feb 2008 | | August 1962 | 172 Huddersfield Road, Holmfirth, West Yorkshire, HD9 3TP |
| HOPPE, Benjamin Finley RESIGNED | Director | 14 Jul 1994 | 08 Feb 2006 | Wales | May 1933 | Newholme, Glasllwch Lane, Newport, Gwent, NP20 3PT |
| HOPPE, Ian David RESIGNED | Director | 15 Oct 2009 | 09 May 2013 | United Kingdom | December 1963 | 204, Stow Hill, Newport, Gwent, NP20 4HB |
| HUNTER, Ian Ernst RESIGNED | Director | 05 May 1993 | 25 Jan 1995 | | August 1938 | 221 Great North Road, Eaton Socon, St. Neots, Cambridgeshire, PE19 8BN |
| JAMES, Alan William RESIGNED | Director | 11 May 2016 | 10 May 2018 | Scotland | August 1953 | A J Engineering & Construction Services, 25 West Road, Forres, Scotland |
| JAMIESON, Katie Wallis RESIGNED | Director | 10 May 2018 | 14 Aug 2018 | United Kingdom | September 1987 | Rippin Ltd Unit 38, Church Street, Cowdenbeath, KY4 8LP, Scotland |
| JONES, Anthony George RESIGNED | Director | 27 Mar 2024 | 11 May 2026 | Scotland | April 1972 | Had Fab Limited, Unit 6-7, Macmerry Industrial Estate, Tranent, EH33 1RD, Scotland |
| JONES, Kenneth Robert RESIGNED | Director | 10 May 1995 | 31 Jul 1999 | United Kingdom | January 1951 | Eigne Croft Vineyard Road, Hampton Park, Hereford, Hereford And Worcester, HR1 1TT |
| KELLY, Martin Thomas RESIGNED | Director | 11 May 2016 | 10 May 2017 | England | September 1967 | Severfield Plc Dalton Airfield Industrial Estate, Dalton Airfield, Dalton, Thirsk, North Yorkshire, YO7 3JN, England |
| KEMPLAY, Darren Paul RESIGNED | Director | 23 Feb 2012 | 10 May 2018 | United Kingdom | February 1967 | 55, Airedale Heights, Wakefield, West Yorkshire, WF2 8YG, England |
| KERR, Ian RESIGNED | Director | 07 Jul 2020 | 07 Apr 2022 | Northern Ireland | February 1963 | Ballykine Structural Engineers Ltd, 51, Lisburn Road, Ballynahinch, Co Down, BT24 8TT, Northern Ireland |
| KERR, Ian RESIGNED | Director | 19 Feb 2009 | 23 Feb 2012 | Northern Ireland | February 1963 | 97a, Killycomain Road, Portadown, Craigavon, County Armagh, BT63 5BX |
| KIERNAN, John Francis RESIGNED | Director | 06 Jul 2021 | 27 Mar 2024 | Ireland | July 1982 | Kiernan Steel, Seven Hills Road, Iver Heath, Iver, Buckinghamshire, SL0 0PB, England |
| KIERNAN, John RESIGNED | Director | 11 May 2016 | 10 May 2017 | Ireland | July 1982 | Kittigreher, Carrigglas, Longford, County Longford, Ireland |
| KIRKPATRICK, James Geoffrey RESIGNED | Director | 06 May 1998 | 05 May 1999 | | October 1951 | Riverside Hollee, Kirkpatrick Fleming, Lockerbie, Dumfries & Galloway, DG11 3NF |
| KIRKPATRICK, James Geoffrey RESIGNED | Director | 10 Feb 1994 | 10 May 1996 | | October 1951 | Riverside Hollee, Kirkpatrick Fleming, Lockerbie, Dumfries & Galloway, DG11 3NF |
| LAZENBY, David William, Mr. RESIGNED | Director | 07 May 1997 | 05 Mar 1998 | United Kingdom | October 1937 | 28 Sanger Drive, Send, Woking, Surrey, GU23 7EB |
| LEACH, Eric Joseph RESIGNED | Director | 17 Feb 2011 | 02 Feb 2012 | United Kingdom | July 1968 | 4 Whitehall Court, Westminster, London, SW1A 2ES |
| LISTER, Christopher David Harkness RESIGNED | Director | 07 Apr 2022 | 02 Jun 2025 | United Kingdom | October 1967 | Farrat, Balmoral Road, Altrincham, WA15 8HJ, England |
| LLOYD, Peter, Dr RESIGNED | Director | 27 Oct 1999 | 08 May 2002 | United Kingdom | May 1960 | New Grove Farm, Trelleck Road, Monmouth, Gwent, NP25 4AF, United Kingdom |
| LOCKE, Joseph RESIGNED | Director | 06 May 1998 | 30 Oct 2003 | England | December 1937 | Cartref 500 Chorley New Road, Bolton, Lancashire, BL1 5DR |
| LOCKE, Joseph RESIGNED | Director | | 07 May 1997 | | December 1937 | 1 Dalegarth Avenue, Bolton, Lancashire, BL1 5DW |
| MADDEN, Charles RESIGNED | Director | 25 Feb 2003 | 19 Feb 2004 | | July 1950 | 4 Burnside Gate, Union Street, Hamilton, South Lanarkshire, ML3 6NP |
| MANNING, Martin William RESIGNED | Director | 18 Oct 2007 | 26 Mar 2014 | England | November 1946 | 15 Ashchurch Park Villas, London, W12 9SP |
| MANNION, Andrew Joseph RESIGNED | Director | 18 Oct 2007 | 14 May 2009 | | April 1957 | Garnatailagh House,, Athlone, Co. Westmeath, IRISH, Ireland |