| D'ABREO, Riordan ACTIVE | Secretary | 01 Jul 2020 | | | | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| MAGISTRELLI, Michele ACTIVE | Director | 12 Jan 2026 | | Italy | April 1985 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| PAGANO, Francesco ACTIVE | Director | 24 Mar 2022 | | United Kingdom | June 1968 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| PORRETTA-SERAPIGLIA, Claudia ACTIVE | Director | 06 Jun 2025 | | United Kingdom | November 1977 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| DAL BELLO, Francesca RESIGNED | Secretary | 29 Jun 2006 | 09 Nov 2017 | | | Eni House, 10 Ebury Bridge Road, London, England, SW1W 8PZ, England |
| DRAKE, Caroline Ann RESIGNED | Secretary | 03 Jul 2000 | 11 Jan 2002 | | | 11 Woodfield Close, Ashtead, Surrey, KT21 2RT |
| O'BRIEN, Alan RESIGNED | Secretary | 11 Jan 2002 | 19 Jul 2002 | | | 21 Wethered Park, Marlow, Buckinghamshire, SL7 2BH |
| SMITH, Linda Gillian RESIGNED | Secretary | 22 Aug 2002 | 29 Jun 2006 | | | 11 Thellusson Way, Rickmansworth, Hertfordshire, WD3 8RB |
| TREZZA, Mila RESIGNED | Secretary | 09 Nov 2017 | 01 Jul 2020 | | | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| WALTERS, Sandra Gail RESIGNED | Secretary | 30 Apr 1999 | 03 Jul 2000 | | | 9 Danvers Way, Caterham, Surrey, CR3 5FJ |
| WEDGWOOD, John Arthur Thomas RESIGNED | Secretary | 15 Feb 1994 | 30 Apr 1999 | | | 32 Chantry Close, Bishops Stortford, Hertfordshire, CM23 2SN |
| CASTIGLIONI, Fabio RESIGNED | Director | 15 Jun 2009 | 14 Jul 2010 | Uk | September 1967 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| CHACON, Oswaldo RESIGNED | Director | 10 Apr 2012 | 24 Sep 2014 | United Kingdom | October 1973 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| CHIARINI, Alberto RESIGNED | Director | 01 Sep 2004 | 03 Apr 2006 | | February 1963 | 31 Berwyn Road, Richmond, Surrey, TW10 5BP |
| DE MARCO, Claudio RESIGNED | Director | 05 Jan 2017 | 12 Jun 2017 | England | February 1957 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| DI LORENZO, Vincenzo RESIGNED | Director | 03 Apr 2006 | 09 Nov 2007 | | May 1949 | Flat 1, 81 Cadogan Place, London, SW1X 9RP |
| DI TOMASO, Nicholas RESIGNED | Director | | 06 Jul 1992 | | December 1932 | 3 Kensington Court, Old Greenwich, Connecticut 06780, FOREIGN, Usa |
| ELLINGHAM, Paul RESIGNED | Director | 06 Sep 2005 | 09 Nov 2007 | | January 1960 | 7 Via San Gerolamo Emiliani, Milan, 20135, Italy |
| FERRARA, Gianluigi RESIGNED | Director | 13 Jun 2017 | 24 Mar 2022 | United Kingdom | September 1959 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| FERRARA, Gianluigi RESIGNED | Director | 07 Jan 2002 | 21 Aug 2003 | | September 1959 | 33 Binghill Road, Milltimber, Aberdeen, AB13 0JA, Scotland |
| GAULIN, Jean Rene Paul Joseph RESIGNED | Director | | 06 Jul 1992 | | July 1942 | 35 West Brother Drive, Greenwich, Connecticut, FOREIGN, Usa |
| GIULIANELLI, Matilde RESIGNED | Director | 21 Aug 2003 | 16 May 2006 | | February 1962 | Flat 3, 22 Cardigan Road, Richmond, Surrey, TW10 6BJ |
| GIUSTO, Manfredi RESIGNED | Director | 03 Oct 2024 | 06 Jun 2025 | United Kingdom | February 1965 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| GIUSTO, Manfredi RESIGNED | Director | 18 Nov 2019 | 06 Aug 2020 | England | February 1965 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| GOLDING, Anthony Charles RESIGNED | Director | | 30 Jul 1999 | England | October 1952 | 25 Sollershott West, Letchworth, Hertfordshire, SG6 3PU |
| HEMMENS, Philip Duncan RESIGNED | Director | 06 Aug 2020 | 13 Oct 2022 | England | October 1953 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| HEMMENS, Philip Duncan RESIGNED | Director | 19 Sep 2011 | 17 May 2016 | United Kingdom | October 1953 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| KING, Thomas George RESIGNED | Director | | 16 Feb 1994 | | May 1938 | 4 St Jamess Terrace Mews, St Johns Wood, London, NW8 7LJ |
| LOUGH, Keith Geddes RESIGNED | Director | 29 Sep 1994 | 03 Mar 1997 | | February 1959 | 77 Mortlake Road, Kew, Surrey, TW9 4AA |
| LUINI, Susanna RESIGNED | Director | 09 Nov 2007 | 19 Nov 2008 | | June 1968 | 68 Corso Italia, Milan, 20122, Italy |
| LUSURIELLO, Luigino RESIGNED | Director | 09 Nov 2007 | 15 Jun 2009 | | August 1961 | 708 The View 20 Palace Street, London, SW1E 5BA |
| MILROY, Duncan Taylor RESIGNED | Director | 01 Feb 1999 | 07 Jan 2002 | United Kingdom | March 1953 | Oaklands, Hampton Court Road, East Molesey, Surrey, KT8 9DA |
| MURRAY, Paul Colbeck RESIGNED | Director | 01 Feb 1999 | 08 May 2001 | | October 1961 | 4 Milner Place, London, N1 1TN |
| NUNNS, Edmund Roger William RESIGNED | Director | 15 Feb 1994 | 26 Sep 1994 | | May 1948 | Sackfords, Mole Hill Green, Felsted, Essex, CM6 3JP |
| OLIVERI, Stefano RESIGNED | Director | 19 Sep 2011 | 15 Apr 2016 | Italy | March 1964 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| PASI, Guiseppe RESIGNED | Director | 07 Jan 2002 | 06 Sep 2005 | | March 1957 | Via Giulio Carcano 13, Cantu(C0), Lombardia, 22063, Italy |
| PASQUA, Roberto RESIGNED | Director | 24 Sep 2014 | 13 Jun 2017 | United Kingdom | March 1965 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| PASQUA, Roberto RESIGNED | Director | 23 Oct 2009 | 19 Sep 2011 | Italy | March 1965 | Via Mercalli 3, Milan, Mi, 20122, Italy |
| PAVIA, Michael James RESIGNED | Director | | 31 Dec 1993 | | October 1946 | Langhurst 5 Derby Road, Haslemere, Surrey, GU27 1BS |
| PIRO, Luigi RESIGNED | Director | 17 May 2016 | 05 Jan 2017 | United Kingdom | March 1959 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| POLO, Franco, Dr RESIGNED | Director | 14 Jul 2010 | 19 Sep 2011 | United Kingdom | December 1957 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| RINALDI, Francesca RESIGNED | Director | 12 Jun 2017 | 18 Nov 2019 | England | April 1978 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| SMERNOFF, Richard Louis RESIGNED | Director | 16 Mar 1994 | 01 Feb 1999 | | July 1941 | 3 Trevor Square, Knightsbridge, London, SW7 1DT |
| TALAMONTI, Marco RESIGNED | Director | 16 May 2006 | 10 Apr 2012 | England | October 1970 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| THOMAS, David Howard RESIGNED | Director | 11 Jan 2000 | 31 Aug 2004 | United Kingdom | June 1957 | Pilton Manor, Pilton, Peterborough, PE8 5SN |
| TONNA, Alberto RESIGNED | Director | 15 Apr 2016 | 12 Jan 2026 | Italy | December 1962 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| TONNA, Alberto RESIGNED | Director | 19 Nov 2008 | 23 Oct 2009 | | December 1962 | 14, Via Kennedy, San Donato Milanese, (Mi), 20097, Italy |
| VASQUES, Luciano Maria RESIGNED | Director | 13 Oct 2022 | 03 Oct 2024 | United Kingdom | April 1963 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| WEDGWOOD, John Arthur Thomas RESIGNED | Director | | 01 Feb 1999 | United Kingdom | September 1940 | 32 Chantry Close, Bishops Stortford, Hertfordshire, CM23 2SN |
| WRIGHT, Christopher Alan, Dr RESIGNED | Director | 01 Feb 1999 | 06 Dec 1999 | | December 1947 | Old Byways House, Gravel Path, Berkhamstead, Hertfordshire, HP4 2PS |