TMF CORPORATE ADMINISTRATION SERVICES LIMITED ACTIVERegistration number 6902863 | Secretary | 24 Nov 2009 | | | | 13th Floor, One Angel Court, London, EC2R 7HJ, United Kingdom |
| CROMBIE, Alastair ACTIVE | Director | 31 May 2024 | | United States | October 1969 | C/O Core Laboratories Uk Ltd, Howemoss Drive, Kirkhill Industrial Estate, Dyce, Aberdeen, AB21 0GL, Scotland |
| WATSON, Jacqueline ACTIVE | Director | 06 Feb 2012 | | Scotland | May 1970 | Core Laboratories, (U.K.) Limited, Howemoss Drive Dyce, Aberdeen, AB21 0GL, Scotland |
| BLESER, David John RESIGNED | Secretary | 07 Aug 2000 | 16 Oct 2002 | | | 49 Ragstone Court, Ditton, Aylesford, Kent, ME20 6AJ |
| HERBAGE, Joan Maud RESIGNED | Secretary | 28 Feb 1995 | 30 Jun 1997 | | | 18 Brookmans Avenue, Brookmans Park, Hatfield, Hertfordshire, AL9 7QJ |
| INGRAM, John RESIGNED | Secretary | 30 Jun 1997 | 07 Aug 2000 | | | 297 Minster Road, Minster On Sea, Sheerness, Kent, ME12 3LP |
| CLIFFORD CHANCE SECRETARIES LIMITED RESIGNED | Secretary | 17 Oct 2002 | 24 Nov 2009 | | | 10 Upper Bank Street, London, E14 5JJ |
| COMBINED SECRETARIAL SERVICES LIMITED RESIGNED | Nominee Secretary | 14 Feb 1995 | 28 Feb 1995 | | | Victoria House, 64 Paul Street, London, EC2A 4NG |
| BLESER, David John RESIGNED | Director | 07 Aug 2000 | 28 Feb 2012 | United Kingdom | June 1958 | 49 Ragstone Court, Ditton, Aylesford, Kent, ME20 6AJ |
| BRETT, Charles Graham RESIGNED | Director | 15 Jul 1997 | 28 Feb 2012 | United Kingdom | December 1944 | Bedwell Cottage, 2 High Road, Essendon, Hertfordshire, AL9 6HW, England |
| BRUCE, George RESIGNED | Director | 06 Feb 2012 | 31 Aug 2022 | United Kingdom | March 1958 | Core Laboratories, (U.K.) Limited, Howe Moss Drive Dyce, Aberdeen, AB21 0GL, Scotland |
| HERBAGE, George David RESIGNED | Director | 28 Feb 1995 | 15 Jul 1997 | | November 1937 | 18 Brookmans Avenue, Brookmans Park, Hatfield, Hertfordshire, AL9 7QJ |
| THOMSON, Ewan John RESIGNED | Director | 31 Aug 2022 | 31 May 2024 | United Kingdom | December 1964 | C/O Core Laboratories Uk Ltd, Howemoss Drive, Kirkhill Industrial Estate, Dyce, Aberdeen, AB21 0GL, Scotland |
| COMBINED NOMINEES LIMITED RESIGNED | Nominee Director | 14 Feb 1995 | 28 Feb 1995 | | | Victoria House, 64 Paul Street, London, EC2A 4NA |
| COMBINED SECRETARIAL SERVICES LIMITED RESIGNED | Nominee Director | 14 Feb 1995 | 28 Feb 1995 | | | Victoria House, 64 Paul Street, London, EC2A 4NG |