| HADDON, Aaron Dwight ACTIVE | Director | 28 Jun 2024 | | Scotland | November 1977 | 1, Enterprise Drive, Westhill Industrial Estate, Westhill, Aberdeen, Aberdeenshire, Scotland, AB32 6TQ, Scotland |
| NEKAKHTAR, Sama ACTIVE | Director | 16 Aug 2024 | | Scotland | October 1984 | 1, Enterprise Drive, Westhill Industrial Estate, Westhill, Aberdeen, Aberdeenshire, Scotland, AB32 6TQ, Scotland |
| O’CONNOR, Eilish Jane ACTIVE | Director | 21 Sep 2024 | | England | December 1970 | Stonehouse Technology Center, Brunel Way, Stroudwater Business Park, Stonehouse, Gloucestershire, GL10 3SK, United Kingdom |
| RAIT, Kenneth Robert, Mr. ACTIVE | Director | 07 Apr 2023 | | Scotland | February 1973 | 1, Enterprise Drive, Westhill Industrial Estate, Westhill, Aberdeen, Aberdeenshire, Scotland, AB32 6TQ, Scotland |
| THOMSON, Jane ACTIVE | Director | 02 Apr 2026 | | United Kingdom | December 1972 | 1, Enterprise Drive, Westhill Industrial Estate, Westhill, Aberdeen, Aberdeenshire, Scotland, AB32 6TQ, Scotland |
| TRISAL, Krishna ACTIVE | Director | 13 Oct 2025 | | United Kingdom | April 1986 | 1, Enterprise Drive, Westhill Industrial Estate, Westhill, Aberdeen, Aberdeenshire, Scotland, AB32 6TQ, Scotland |
| DROY MOORE, Pauline RESIGNED | Secretary | 29 Jan 2004 | 31 Dec 2015 | | | Schlumberger House, Buckingham Gate, Gatwick Airport, West Sussex, RH6 ONZ, United Kingdom |
| HIGGINS, Mark Roman RESIGNED | Secretary | 29 May 2020 | 30 Jul 2021 | | | 62, Buckingham Gate, London, England And Wales, SW1E 6AJ, United Kingdom |
| RAY, Neil RESIGNED | Secretary | 09 Feb 2001 | 01 May 2009 | | | Poplar Barn, Grafton, Bampton, Oxfordshire, OX18 2RY |
| SMOKER, Simon RESIGNED | Secretary | 01 Jan 2016 | 29 May 2020 | | | Schlumberger House, Buckingham Gate, Gatwick Airport, West Sussex, RH6 0NZ, United Kingdom |
| VARN, Giselle Evette RESIGNED | Secretary | 30 Jul 2021 | 04 Aug 2022 | | | 1, Enterprise Drive, Westhill Industrial Estate, Westhill, Aberdeen, Aberdeenshire, Scotland, AB32 6TQ, Scotland |
| ADHIA, Rakesh RESIGNED | Director | 01 May 2021 | 14 Nov 2025 | United Kingdom | September 1974 | 62, Buckingham Gate, London, England And Wales, SW1E 6AJ, United Kingdom |
| ADHIA, Rakesh RESIGNED | Director | 16 Jul 2009 | 23 Aug 2011 | United Kingdom | September 1974 | Victory House, Manor Royal, Crawley, West Sussex, RH10 9LU, United Kingdom |
| BAIRD, Euan RESIGNED | Director | 09 Feb 2001 | 10 Sep 2001 | | September 1937 | 131 East 66 Street - 4/5e, New York, 10021, America |
| BALLARD, Gordon George Reid RESIGNED | Director | 26 Jul 2005 | 30 Jun 2015 | England | November 1959 | Bratton, Beechwood Avenue, Weybridge, Surrey, KT13 9TF |
| BEDDALL, Colin David, Mr. RESIGNED | Director | 31 Jul 2022 | 15 Aug 2024 | United Kingdom | July 1970 | 29, Lauderdale Mansions, Lauderdale Road, London, W9 1LX, United Kingdom |
| BOUMBA, Christel Kevin Geraud RESIGNED | Director | 04 Aug 2009 | 16 Mar 2010 | | June 1975 | 151, Lavender Hill, Flat 1, London, SW11 5QJ |
| BOYAULT, Gwenola Jacqueline Stephanie RESIGNED | Director | 12 Oct 2016 | 01 Aug 2019 | United Kingdom | March 1972 | Schlumberger House, Buckingham Gate, Gatwick Airport, West Sussex, RH6 0NZ, United Kingdom |
| CENIVAL, Patrice Hellouin De RESIGNED | Director | 01 May 2016 | 21 Oct 2020 | United Kingdom | May 1961 | Schlumberger House, Buckingham Gate, Gatwick Airport, West Sussex, RH6 0NZ, United Kingdom |
| CHEETHAM, Neil James RESIGNED | Director | 01 Jul 2019 | 03 Apr 2020 | United Kingdom | August 1976 | Peregrine House, Peregrine Road, Westhill Business Park, Westhill, Aberdeenshire, Scotland, AB32 6JL, Scotland |
| CHONG, Kon Keow RESIGNED | Director | 01 Jun 2014 | 19 Jul 2017 | United Kingdom | May 1970 | Schlumberger House, Buckingham Gate, Gatwick Airport, West Sussex, RH6 ONZ, United Kingdom |
| CORCORAN, Mikki Victoria RESIGNED | Director | 01 Aug 2019 | 04 Feb 2022 | Scotland | April 1979 | 1, Enterprise Drive, Westhill Industrial Estate, Westhill, Aberdeen, Aberdeenshire, Scotland, AB32 6TQ, Scotland |
| COVARRUBIAS-RICO, Jorge RESIGNED | Director | 31 Oct 2019 | 07 Apr 2023 | Scotland | May 1973 | 1, Enterprise Drive, Westhill Industrial Estate, Westhill, Aberdeen, Aberdeenshire, Scotland, AB32 6TQ, Scotland |
| DEGRANGE, Jean-Marie RESIGNED | Director | 19 Jul 2017 | 26 Oct 2018 | United Kingdom | April 1979 | Stonehouse Technology Center, Brunel Way, Stroudwater Business Park, Stonehouse, Gloucestershire, GL10 3SK, United Kingdom |
| DROY MOORE, Pauline RESIGNED | Director | 01 May 2009 | 31 Dec 2015 | United Kingdom | January 1959 | Schlumberger House, Buckingham Gate, Gatwick Airport, West Sussex, RH6 ONZ, United Kingdom |
| FOX, Robert Edward Anselm RESIGNED | Director | 04 Feb 2022 | 30 Sep 2025 | United Kingdom | May 1972 | 1, Enterprise Drive, Westhill Industrial Estate, Westhill, Aberdeen, Aberdeenshire, Scotland, AB32 6TQ, Scotland |
| FUENTES SEMIDEY, Angel Gabriel RESIGNED | Director | 03 Mar 2020 | 07 May 2020 | United Kingdom | February 1979 | Peregrine House, Peregrine Road, Westhill Business Park, Westhill, Aberdeenshire, Scotland, AB32 6JL, Scotland |
| FYFE, Kevin Scott RESIGNED | Director | 28 Aug 2007 | 01 Jul 2009 | | April 1973 | 1 Corsehill, Durris, Banchory, Scotland |
| GOLDBY, Alan John RESIGNED | Director | 13 Apr 2001 | 31 Dec 2009 | | December 1949 | 33 Tyne Crescent, Brickhill, Bedford, Bedfordshire, MK41 7UJ |
| GOLDBY, Alan John RESIGNED | Director | 09 Feb 2001 | 09 Feb 2001 | | December 1949 | 33 Tyne Crescent, Brickhill, Bedford, Bedfordshire, MK41 7UJ |
| GOLIGHER, Alison Jane Patricia RESIGNED | Director | 11 Jan 2005 | 02 Aug 2005 | | March 1965 | Townhead Lodge, Ardoe, Aberdeenshire, AB12 5XX |
| GORDON, Gillian RESIGNED | Director | 12 Apr 2016 | 30 Sep 2020 | United Kingdom | August 1957 | 62, Buckingham Gate, London, England And Wales, SW1E 6AJ, United Kingdom |
| GRIJALVA, Victor RESIGNED | Director | 09 Feb 2001 | 10 Sep 2001 | | July 1938 | 525 Park Avenue Apt 5n, New York, 10021-8141, America |
| GUEDEZ, Manuel Alejandro RESIGNED | Director | 20 Feb 2017 | 01 Jul 2019 | Scotland | May 1977 | Peregrine House, Peregrine Road, Westhill Business Park, Westhill, Aberdeenshire, Scotland, AB32 6JL, Scotland |
| GUNDERSON, James Loren RESIGNED | Director | 09 Feb 2001 | 10 Sep 2001 | | July 1955 | 16 Hudson Street, Apt 2c, New York, New York 10013, Usa |
| HIGGINS, Mark Roman RESIGNED | Director | 29 Mar 2019 | 30 Jul 2021 | England | March 1971 | 62, Buckingham Gate, London, England And Wales, SW1E 6AJ, United Kingdom |
| HOEING-COSENTINO, Karin Annette RESIGNED | Director | 01 Dec 2013 | 12 Oct 2016 | Scotland | February 1971 | Schlumberger House, Buckingham Gate, Gatwick Airport, West Sussex, RH6 ONZ, United Kingdom |
| KALB, Frederique RESIGNED | Director | 01 Sep 2012 | 01 Sep 2014 | United Kingdom | February 1971 | Victory House, Manor Royal, Crawley, West Sussex, RH10 9LU, United Kingdom |
| KIDD, Ryan Alexander RESIGNED | Director | 05 Nov 2014 | 07 Nov 2016 | Scotland | January 1980 | Schlumberger House, Buckingham Gate, Gatwick Airport, Gatwick, West Sussex, RH6 ONZ, United Kingdom |
| LABBE, Christelle Sandrine RESIGNED | Director | 30 Sep 2020 | 02 Apr 2026 | United Kingdom | July 1975 | 62, Buckingham Gate, London, England And Wales, SW1E 6AJ, United Kingdom |
| LE FLOCH, Gilles RESIGNED | Director | 04 Aug 2009 | 01 Sep 2012 | | April 1958 | 120, Rue Des Bigauds, 78750, Mareil-Marly, France |
| LIU, Jack RESIGNED | Director | 09 Feb 2001 | 10 Sep 2001 | | October 1949 | 33 Hemlock Drive, Greenwich, Connecticut 06831, Usa |
| MANNERING, Michael Eric John RESIGNED | Director | 11 Jan 2005 | 28 Feb 2015 | United Kingdom | September 1952 | 194 Sutherland Avenue, Maida Vale, London, W9 1RX |
| MARSH, David RESIGNED | Director | 13 Aug 2012 | 29 Mar 2019 | United Kingdom | January 1962 | Schlumberger House, Buckingham Gate, Gatwick Airport, West Sussex, RH6 0NZ, United Kingdom |
| MARTIN, Rebecca Helen RESIGNED | Director | 09 Oct 2008 | 13 Aug 2012 | United Kingdom | September 1971 | 28, Mount Ash Road, London, SE26 6LY |
| MCBEATH, Brian Laurence RESIGNED | Director | 07 Nov 2016 | 31 Oct 2019 | United Kingdom | March 1970 | Peregrine House, Peregrine Road, Westhill Business Park, Westhill, Aberdeenshire, Scotland, AB32 6JL, Scotland |
| MCCANDLESS, Catherine RESIGNED | Director | 16 Sep 2013 | 29 Mar 2019 | Northern Ireland | January 1971 | Schlumberger House, Buckingham Gate, Gatwick Airport, West Sussex, RH6 0NZ, United Kingdom |
| MURDOCH, Kenneth RESIGNED | Director | 20 Jan 2005 | 30 Oct 2007 | | September 1965 | Flat 3 Angusfield House, 226 Queens Road, Aberdeen, Aberdeenshire, AB15 8DN |
| NORMORE, Andrew Derek RESIGNED | Director | 12 Jan 2005 | 31 Oct 2006 | | February 1958 | Cleverlys, Vicarage Street, Painswick, Gloucestershire, GL6 6XR |
| NUGENT, Gregory John RESIGNED | Director | 01 Nov 2021 | 22 Jul 2024 | United Kingdom | August 1977 | Stonehouse Technology Center, Brunel Way, Stroudwater Business Park, Stonehouse, Gloucestershire, GL10 3SK, United Kingdom |
| PANDIAN, Pugalenthi RESIGNED | Director | 01 Oct 2012 | 16 Sep 2013 | Ireland | January 1965 | Victory House, Manor Royal, Crawley, West Sussex, RH10 9LU, United Kingdom |
| PARK, Gary RESIGNED | Director | 29 May 2020 | 31 Jul 2022 | United Kingdom | March 1963 | 62, Buckingham Gate, London, England And Wales, SW1E 6AJ, United Kingdom |
| PERCEVAULT, Jean Dominique RESIGNED | Director | 09 Feb 2001 | 04 Sep 2002 | | March 1945 | 20 Boulevard De Montparnasse, Paris 75015, France, FOREIGN |
| RAY, Neil RESIGNED | Director | 13 Apr 2001 | 01 May 2009 | England | December 1949 | Poplar Barn, Grafton, Bampton, Oxfordshire, OX18 2RY |
| RAY, Neil RESIGNED | Director | 09 Feb 2001 | 09 Feb 2001 | | December 1949 | 103 Defoe House, Barbican, London, EC2Y 8ND |
| RODRIGUEZ ALBARRAN, Luis Eduardo RESIGNED | Director | 16 Sep 2013 | 01 Jun 2014 | United Kingdom | February 1974 | Victory House, Manor Royal, Crawley, West Sussex, RH10 9LU, United Kingdom |
| SILVESTER, Ian RESIGNED | Director | 01 Jul 2010 | 16 Sep 2013 | United Kingdom | November 1969 | Victory House, Manor Royal, Crawley, West Sussex, RH10 9LU, United Kingdom |
| SMOKER, Simon RESIGNED | Director | 09 Oct 2008 | 29 May 2020 | England | July 1962 | Schlumberger House, Buckingham Gate, Gatwick Airport, West Sussex, RH6 0NZ, United Kingdom |
| SMYTH, George Anthony RESIGNED | Director | 11 Jan 2005 | 16 Sep 2013 | | September 1969 | 8 Orchard Crescent, Downpatrick, County Down, BT30 6NY |
| TERTYCHNY, Vladimir, Dr RESIGNED | Director | 01 Dec 2014 | 19 Jul 2017 | United Kingdom | February 1966 | Schlumberger House, Buckingham Gate, Gatwick Airport, West Sussex, RH6 ONZ, United Kingdom |
| TORBETT, Daniel Eugene RESIGNED | Director | 01 Sep 2008 | 21 Jul 2011 | | May 1958 | 98, Ballybarnes Road, Newtownards, County Down, BT23 4TD |
| VARN, Giselle Evette RESIGNED | Director | 26 Aug 2020 | 04 Aug 2022 | Scotland | April 1965 | 1, Enterprise Drive, Westhill Industrial Estate, Westhill, Aberdeen, Aberdeenshire, Scotland, AB32 6TQ, Scotland |
| VARUGHESE, Jimmy RESIGNED | Director | 29 May 2019 | 01 Nov 2021 | United Kingdom | May 1981 | Stonehouse Technology Center, Brunel Way, Stroudwater Business Park, Stonehouse, Gloucestershire, GL10 3SK, United Kingdom |
| WALKER, Christopher Allan RESIGNED | Director | 18 Aug 2022 | 29 Jun 2024 | Scotland | July 1984 | 1, Enterprise Drive, Westhill Industrial Estate, Westhill, Aberdeen, Aberdeenshire, Scotland, AB32 6TQ, Scotland |
| WALTERS, Catherine RESIGNED | Director | 01 Oct 2011 | 01 Sep 2014 | United Kingdom | April 1967 | Victory House, Manor Royal, Crawley, West Sussex, RH10 9LU, United Kingdom |
| WAND, Paul Anthony RESIGNED | Director | 31 Oct 2006 | 01 Jul 2010 | United Kingdom | March 1959 | 3 Ness Road, Burwell, Cambridgeshire, CB25 0AA |
| WHITE, Simon Meredith RESIGNED | Director | 01 Jan 2012 | 15 Apr 2016 | England | June 1957 | Schlumberger House, Buckingham Gate, Gatwick Airport, West Sussex, RH6 ONZ, United Kingdom |