| CLIFTON, Scot ACTIVE | Secretary | 01 Jul 2009 | | | | Halliburton House, Howe Moss Crescent, Dyce, Aberdeen, AB21 0GN |
| CLIFTON, Scot ACTIVE | Director | 01 Jul 2009 | | Scotland | November 1966 | Halliburton House, Howe Moss Crescent, Dyce, Aberdeen, AB21 0GN |
| MEKKAWY, Wael ACTIVE | Director | 01 Feb 2020 | | Scotland | May 1974 | Halliburton House, Howe Moss Crescent, Dyce, Aberdeen, AB21 0GN, United Kingdom |
| USMAN, Shaikh ACTIVE | Director | 28 Feb 2020 | | United Kingdom | March 1972 | The Shard, 32, London Bridge Street, London, SE1 9SG |
| WHITE, Martin Robert ACTIVE | Director | 08 Dec 2017 | | United Kingdom | September 1973 | Halliburton House, Howe Moss Crescent, Dyce, Aberdeen, AB21 0GN, United Kingdom |
| CRAWLEY, Peter John RESIGNED | Secretary | 31 Jul 2003 | 30 Jun 2008 | | | Deveron Facility, Howe Moss Place, Dyce, Aberdeen, AB21 0GS |
| DEERING, John Edward RESIGNED | Secretary | 30 Jun 2008 | 01 Jul 2009 | | | 129, Blenheim Place, Aberdeen, Aberdeenshire, AB25 2DL |
| HENNIKER SMITH, Ian Maurice RESIGNED | Secretary | 31 Jan 2000 | 10 Sep 2002 | | | Fishers, Cox Green, Rudgwick, West Sussex, RH12 3DD |
| TOCHER, Judith Robertson RESIGNED | Secretary | 10 Sep 2002 | 31 Jul 2003 | | | Blacktop House, Blacktop, Kingswells, Aberdeen, AB15 8QJ |
| TOSTEE, Jacques Georges Fernand RESIGNED | Secretary | | 16 Sep 1999 | | | 11 Girdwood Road, London, SW18 5QR |
| VINT, Richard Clark RESIGNED | Secretary | 16 Sep 1999 | 31 Jan 2000 | | | 155 North Deeside Road, Bieldside, Aberdeen, Aberdeenshire, AB15 9EA |
| BETTS, Matthew RESIGNED | Director | 01 Jan 2014 | 08 Dec 2017 | United Kingdom | January 1968 | Halliburton House, Howe Moss Drive, Dyce, Aberdeen, AB21 0GD, Scotland |
| BEVERIDGE, Ronald Gordon RESIGNED | Director | 18 Jun 2002 | 10 Sep 2002 | | September 1945 | 37 Kingston Lane, Teddington, Middlesex, TW11 9HL |
| BOCKING, Albert RESIGNED | Director | | 23 Dec 1992 | | August 1940 | White Lodge Brownslane, East Bridgford, Nottingham, NG13 8PL |
| BOWYER, Michael Lewis RESIGNED | Director | 30 Jun 2004 | 01 Jul 2009 | | October 1951 | Deveron Facility, Howe Moss Place, Dyce, Aberdeen, AB21 0GS |
| BUCHANAN, Alasdair Ian RESIGNED | Director | 01 Aug 2011 | 13 Apr 2012 | Scotland | November 1960 | Halliburton House, Howe Moss Crescent, Dyce, Aberdeen, AB21 0GN, Scotland |
| CHAPMAN, Gordon Robin RESIGNED | Director | 07 Jul 1997 | 07 Mar 2000 | England | April 1950 | Pen Y Bryn Upper Raby Road, Neston, Cheshire, CH64 7TY |
| COCKSEDGE, Brian RESIGNED | Director | 10 Sep 2002 | 11 Mar 2003 | England | October 1946 | 3 Northumberland Terrace, Tynemouth, Tyne And Wear, NE30 4BA |
| EBREY, John Manley RESIGNED | Director | | 23 Dec 1992 | | June 1935 | 4 Stringer Close, Mere Green, Sutton Coldfield, West Midlands, B75 5QE |
| FARRELL, John RESIGNED | Director | 14 Mar 1997 | 04 Apr 2001 | | January 1952 | 5 Waverley Court, Bonnyrigg, Midlothian, EH19 3BX, Scotland |
| FENTEM, John Richard RESIGNED | Director | 20 Jun 1996 | 14 Mar 1997 | | January 1950 | 16 Chantry Avenue, Hartford, Northwich, Cheshire, CW8 1LZ |
| FITZGERALD, Mel Oliver RESIGNED | Director | 10 Sep 2002 | 30 Jun 2004 | United Kingdom/England | November 1950 | 3 Marlyns Drive, Burpham, Guildford, Surrey, GU4 7LS |
| GREEN, John Keith RESIGNED | Director | | 23 Dec 1992 | | April 1933 | 25 Tavistock Drive, Chadderton, Oldham, Lancashire, OL9 0RQ |
| HEATH, Stuart Matthew RESIGNED | Director | 18 Nov 2012 | 14 May 2013 | United Arab Emirates | April 1959 | 8th Floor Convention Tower, Beside Novotel Hotel, Trade Centre, PO BOX 3111, Dubai, United Arab Emirates |
| HENNIKER SMITH, Ian Maurice RESIGNED | Director | 08 Feb 2001 | 10 Sep 2002 | England | April 1949 | Fishers, Cox Green, Rudgwick, West Sussex, RH12 3DD |
| HIGGS, Robert Eric RESIGNED | Director | | 30 Oct 1996 | | January 1939 | 5 Roman Camp, Pathhead, Midlothian, EH37 5TH |
| HOUSTON, John Joseph RESIGNED | Director | 10 Sep 2002 | 27 Apr 2007 | | August 1964 | Deveron Facility, Howe Moss Place, Dyce, Aberdeen, AB21 0GS |
| JOHNSTON, David Alexander RESIGNED | Director | 24 Oct 2007 | 18 Nov 2012 | United Kingdom | March 1971 | Halliburton House, Howe Moss Crescent, Dyce, Aberdeen, AB21 0GN |
| LOCKETT, Melvyn RESIGNED | Director | | 23 Dec 1992 | | May 1940 | Flanach, Silver Street, Whitley, Goole, North Humberside, DN14 0JG |
| MAHON, Barry Anthony RESIGNED | Director | 31 Jul 2003 | 30 Jun 2004 | | September 1962 | 133 North Deeside Road, Milltimber, Aberdeen, AB13 0JS |
| MARSH, John RESIGNED | Director | 20 Jun 1996 | 08 Jan 2001 | | June 1949 | 33 Spofforth Hill, Wetherby, West Yorkshire, LS22 6SF |
| MATHEW, Thomas Kuzhuvommannil RESIGNED | Director | 28 Jan 2014 | 28 Feb 2020 | United Arab Emirates | May 1963 | 14th Floor, Citibank Tower, Al-Qutayat Street, Dubai, United Arab Emirates |
| MLADENKA, David RESIGNED | Director | 13 Apr 2012 | 01 Jan 2014 | United Kingdom | December 1960 | Halliburton House, Howe Moss Crescent, Dyce, Aberdeen, AB21 0GN, Scotland |
| MOLLER, Leslie George RESIGNED | Director | | 31 Aug 1995 | England | June 1930 | 12 Chester Court, Chester Road, Northwood, Middlesex, HA6 1BQ |
| NICHOLAS, David Charles RESIGNED | Director | | 23 Dec 1992 | | December 1949 | Lillingstone House, 84 Knowle Wood Road Dorridge, Solihull, West Midlands, B93 8JP |
| NICHOLSON, Stephen John RESIGNED | Director | 14 Mar 1995 | 14 Mar 2006 | | February 1948 | Hill Park Court, Springfield Drive, Leatherhead, Surrey, KT22 7NL |
| PAVER, Gary Neil RESIGNED | Director | 30 Jun 2004 | 24 Oct 2007 | | May 1967 | Deveron Facility, Howe Moss Place, Dyce, Aberdeen, AB21 0GS |
| SALTMARSHE, Donald Charles RESIGNED | Director | | 03 Dec 1993 | | January 1941 | Green Lane Farm, Green Lane, Lydiate, Merseyside, L31 4HZ |
| SEATON, Simon Derek RESIGNED | Director | 05 Jan 2009 | 01 Aug 2011 | Scotland | March 1968 | Halliburton House, Howe Moss Crescent, Kirkhill Industrial Estate, Dyce, Aberdeen, AB21 0GN |
| SMART, Edwin Gerald RESIGNED | Director | 14 May 2013 | 19 Aug 2013 | England | September 1965 | Halliburton House, Howe Moss Crescent, Kirkhill Industrial Estate, Dyce, Aberdeen, AB21 0GN, Scotland |
| SMITH, Norman Ebb Simpson RESIGNED | Director | 10 Sep 2002 | 13 Jan 2006 | | November 1955 | Deveron Facility, Howe Moss Place, Dyce, Aberdeen, AB21 0GS |
| WESTCOTT, Denis RESIGNED | Director | | 09 Oct 1996 | | November 1950 | 5 Forest Hill Court, Ringwood, Hampshire, BH24 1QR |