| 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 | 06 Jul 2007 | 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 |
| FAGAN, Daragh Patrick Feltrim RESIGNED | Secretary | 08 Aug 2002 | 06 Jul 2007 | | | 17 Grena Road, Richmond, Surrey, TW9 1XU |
| O'BRIAN, Alan RESIGNED | Secretary | 11 Jan 2002 | 19 Jul 2002 | | | 21 Wethered Park, Marlow, Buckinghamshire, SL7 2BH |
| 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 | | 30 Apr 1999 | | | 32 Chantry Close, Bishops Stortford, Hertfordshire, CM23 2SN |
| ARISI ROTA, Federico RESIGNED | Director | 09 Nov 2007 | 13 Jan 2009 | | March 1958 | 1 Via Emilia, San Donato Milanese, 20097, Italy |
| AZANCOT, Michael James RESIGNED | Director | 06 Jul 1998 | 08 Feb 2000 | United Kingdom | April 1958 | 41 Lynch Road, Farnham, Surrey, GU9 8BT |
| BUSHELL, Timothy Paul RESIGNED | Director | 10 Feb 2000 | 31 May 2001 | England | September 1959 | Pitch Green House, Sandpit Lane, Bledlow, Buckinghamshire, HP27 9QQ |
| 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 |
| DERBY, Joseph RESIGNED | Director | | 02 Nov 1993 | England | July 1948 | Denefield, Rectory Road Oakley, Basingstoke, Hampshire, RG23 7LJ |
| DI LORENZO, Vincenzo RESIGNED | Director | 03 Apr 2006 | 09 Nov 2007 | | May 1949 | Flat 1, 81 Cadogan Place, London, SW1X 9RP |
| 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 | 24 Aug 2001 | 21 Aug 2003 | | September 1959 | 33 Binghill Road, Milltimber, Aberdeen, AB13 0JA, Scotland |
| FRANKE, John Adrian RESIGNED | Director | 15 Dec 1997 | 31 Aug 2001 | United Kingdom | June 1958 | 6 Queensdale Place, London, W11 4SQ |
| 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 |
| GRAY, Colin Robert Gordon RESIGNED | Director | 04 Nov 1993 | 31 May 1995 | | January 1952 | 16, Oakhill Road, Sevenoaks, Kent, TN13 1NP |
| HARVEY, Russell Seth RESIGNED | Director | | 30 Sep 1996 | United Kingdom | March 1952 | Hunters Croft, Grayswood, Haslemere, Surrey, GU27 |
| HASHEMI, Seyed Mohammed Mehdi RESIGNED | Director | | 22 Jan 1993 | | June 1931 | 30 Abingdon Court, London, W8 6BT |
| 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 |
| HEMMENS, Philip Duncan RESIGNED | Director | 02 Dec 2002 | 21 Sep 2004 | | October 1953 | Fluder House 39 Fluder Hill, Kingskerswell, Newton Abbot, Devon, TQ12 4SX |
| HOGAN, John Anthony RESIGNED | Director | | 01 Feb 1999 | United Kingdom | April 1953 | The Malthouse Heaverham Road, Kemsing, Sevenoaks, Kent, TN15 6NE |
| KIDD, Rupert Gervase William, Dr RESIGNED | Director | 19 Jul 1995 | 16 May 1996 | | September 1949 | 9 Limetree Walk, Virginia Park, Virginia Water, Surrey, GU25 4SW |
| KING, Paul Anthony RESIGNED | Director | 30 Sep 1996 | 28 Feb 1997 | | November 1947 | 7 Queen Of Denmark Court, Finland Street, London, SE16 1TB |
| LIBRI, Giuseppe RESIGNED | Director | 13 Jan 2009 | 19 Sep 2011 | | March 1952 | 13a, Via Nenni, Vizzolo Predabissi, Milan, Italy |
| LORATO, Roberto RESIGNED | Director | 24 Aug 2001 | 08 Aug 2002 | | April 1958 | 56 Gladstone Place, Queens Cross, Aberdeen, Grampian, AB10 6XA |
| LOUGH, Keith Geddes RESIGNED | Director | 03 Mar 1997 | 30 Jul 1999 | | February 1959 | 77 Mortlake Road, Kew, Surrey, TW9 4AA |
| LUSURIELLO, Luigino RESIGNED | Director | 09 Nov 2007 | 15 Jun 2009 | | August 1961 | 708 The View 20 Palace Street, London, SW1E 5BA |
| MCALLISTER, Mark RESIGNED | Director | 12 Jan 2000 | 31 May 2001 | | May 1958 | 131 Parkside Drive, Watford, Hertfordshire, WD17 3BA |
| MILROY, Duncan Taylor RESIGNED | Director | 27 Oct 1993 | 01 Apr 1996 | United Kingdom | March 1953 | Oaklands, Hampton Court Road, East Molesey, Surrey, KT8 9DA |
| MIRABELLI, Giuseppe RESIGNED | Director | 14 Feb 2005 | 09 Nov 2007 | | May 1949 | Via C Bonacossa 94 27020, Dorno, Italy |
| MIRABELLI, Giuseppe RESIGNED | Director | 08 Aug 2002 | 02 Dec 2002 | | May 1949 | Via C Bonacossa 94 27020, Dorno, Italy |
| MURRAY, Paul Colbeck RESIGNED | Director | 01 Feb 1999 | 08 Jun 2001 | | October 1961 | 4 Milner Place, London, N1 1TN |
| OLIVERI, Stefano RESIGNED | Director | 19 Sep 2011 | 15 Apr 2016 | Italy | March 1964 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| PAGANI, Alberto RESIGNED | Director | 02 Dec 2002 | 14 Feb 2005 | | April 1951 | Corso Sempione 33, Milano, 20145, Italy |
| PASI, Giuseppe RESIGNED | Director | 03 Apr 2014 | 15 Apr 2016 | Italy | March 1957 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| PASQUA, Roberto RESIGNED | Director | 24 Sep 2014 | 13 Jun 2017 | United Kingdom | March 1965 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| PAVIA, Michael James RESIGNED | Director | | 31 Dec 1993 | | October 1946 | Langhurst 5 Derby Road, Haslemere, Surrey, GU27 1BS |
| PICKERILL, Anne RESIGNED | Director | 05 Apr 1993 | 07 Apr 1993 | | March 1962 | 33 Glamorgan Road, Kingston Upon Thames, Surrey, KT1 4HS |
| 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 |
| SHAW, Sandra Nan Demby RESIGNED | Director | 15 Jun 1993 | 02 Nov 1993 | England | July 1953 | 21 Harcourt Road, Dorney Reach, Berkshire, SL6 0DT |
| SMERNOFF, Richard Louis RESIGNED | Director | 14 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 | 30 Jul 1999 | 01 Sep 2004 | United Kingdom | June 1957 | Pilton Manor, Pilton, Peterborough, PE8 5SN |
| THOMAS, David Howard RESIGNED | Director | 30 Sep 1996 | 07 Mar 1997 | | June 1957 | Castle Mead, Chalk Lane, Hyde Heath, Amersham, Buckinghamshire, HP6 5SA |
| TONNA, Alberto RESIGNED | Director | 15 Apr 2016 | 12 Jan 2026 | Italy | December 1962 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| VASQUES, Luciano Maria RESIGNED | Director | 13 Oct 2022 | 03 Oct 2024 | United Kingdom | April 1963 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| WELLAND, Michael John Patterson RESIGNED | Director | 16 Apr 1996 | 01 Feb 1999 | England | September 1946 | 175 Southwark Bridge Road, London, SE1 0ED |
| WINCKLE, Kenneth Rodney RESIGNED | Director | 03 Mar 1997 | 15 Dec 1997 | United Kingdom | July 1945 | Pound Farm Coggeshall Road, Kelvedon, Essex, CO5 9PH |
| WRIGHT, Christopher Alan, Dr RESIGNED | Director | 01 Feb 1999 | 06 Dec 1999 | | December 1947 | Old Byways House, Gravel Path, Berkhamstead, Hertfordshire, HP4 2PS |