| D'ABREO, Riordan ACTIVE | Secretary | 01 Jul 2020 | | | | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| CALVIELLO, Emanuele ACTIVE | Director | 17 Mar 2025 | | Australia | November 1969 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| PAGANO, Ciro Antonio ACTIVE | Director | 18 Aug 2021 | | Italy | March 1962 | 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 | 22 Sep 2025 | | United Kingdom | November 1977 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| WATERLOW, Richard Philip ACTIVE | Director | 08 Dec 2020 | | United Kingdom | September 1973 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| BUTTERFIELD, Simon Percy RESIGNED | Secretary | | 31 Jul 1996 | | | 9 Blunts Wood Road, Haywards Heath, West Sussex, RH16 1ND |
| DAL BELLO, Francesca RESIGNED | Secretary | 06 Jul 2007 | 09 Nov 2017 | | | Eni House, 10 Ebury Bridge Road, London, England, SW1W 8PZ, England |
| FAGAN, Daragh Patrick Feltrim RESIGNED | Secretary | 08 Aug 2002 | 06 Jul 2007 | | | 17 Grena Road, Richmond, Surrey, TW9 1XU |
| FAGAN, Daragh Patrick Feltrim RESIGNED | Secretary | 30 Jun 2000 | 11 Dec 2001 | | | 17 Grena Road, Richmond, Surrey, TW9 1XU |
| HUDDLE, Stephen Charles RESIGNED | Secretary | 01 Aug 1996 | 30 Jun 2000 | | | 21 Dunsany Road, London, W14 0JP |
| O'BRIEN, Alan RESIGNED | Secretary | 11 Dec 2001 | 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 |
| AGOSTINELLI, Eros Lucio RESIGNED | Director | 20 May 2006 | 09 Oct 2009 | | May 1957 | 17 Arbordale Street, Floreat, WA 6014, Australia |
| BALDASSARRE, Antonio Massimiliano RESIGNED | Director | 09 Oct 2009 | 02 Jan 2013 | Australia | April 1968 | Mounts Way Waters Apartment Hotel, 112 Mounts Bay Road, Perth, WA 6005, Australia |
| BETTINELLI, Leandro RESIGNED | Director | 02 Dec 2002 | 20 May 2006 | | February 1951 | 101 Webster Street, Nedlands, Perth, Australia |
| BORGOGNONI, Roberto RESIGNED | Director | 11 May 2000 | 10 May 2001 | | June 1950 | Via Bono Di Savoia 21, 27100 Pavia, Italy |
| BUTTERFIELD, Simon Percy RESIGNED | Director | | 31 Jul 1996 | United Kingdom | November 1946 | 9 Blunts Wood Road, Haywards Heath, West Sussex, RH16 1ND |
| CAIRNS, Roger John Russell, Doctor RESIGNED | Director | | 31 Mar 1997 | England | March 1943 | High Larch Lewis Lane, Chalfont St Peter, Gerrards Cross, Buckinghamshire, SL9 9TS |
| CHACON, Oswaldo RESIGNED | Director | 10 Apr 2012 | 24 Sep 2014 | United Kingdom | October 1973 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| CIARROCCHI, Luigi RESIGNED | Director | 06 Nov 2008 | 13 Feb 2014 | Italy | June 1961 | 3, Passo Buole, Milan, 20135, Italy |
| COLVIN, William RESIGNED | Director | 22 Oct 1998 | 05 Nov 1999 | United Kingdom | March 1958 | 1 Patterdale, Coldharbour Road, West Byfleet, Surrey, KT14 6JN |
| DE MARCO, Claudio RESIGNED | Director | 05 Jan 2017 | 12 Jun 2017 | England | February 1957 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| DELFOS, Ernest Frank Oliver RESIGNED | Director | 02 Jan 2013 | 02 Jul 2023 | Australia | November 1963 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| ELWES, Peter John Gervase RESIGNED | Director | | 31 Mar 1996 | | October 1929 | 75 Murray Road, Wimbledon, London, SW19 4PF |
| FAGAN, Daragh Patrick Feltrim RESIGNED | Director | 08 Aug 2002 | 06 Jul 2007 | England | September 1969 | 17 Grena Road, Richmond, Surrey, TW9 1XU |
| 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 | 10 May 2001 | 21 Aug 2003 | | September 1959 | 33 Binghill Road, Milltimber, Aberdeen, AB13 0JA, Scotland |
| FORZONI, Andrea RESIGNED | Director | 14 Nov 2007 | 06 Nov 2008 | | February 1952 | 4 Via Carroccio, Milan, 20123, Italy |
| GAYNOR, Alan Jonathan RESIGNED | Director | 22 Oct 1998 | 11 May 2000 | | March 1953 | 4a Kidderpore Avenue, Hampstead, London, NW3 7SP |
| 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 | 14 Apr 2025 | 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 |
| GREENWAY, Charles Sherrard RESIGNED | Director | | 02 Dec 2002 | | April 1945 | 19 Quorn Street, Wembley Downs, Western Australia 6019, Australia |
| 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 |
| HILL, Peter Julian, Dr RESIGNED | Director | 20 Apr 1998 | 11 May 2000 | | March 1947 | Swallow Barns Tismans Common, Rudgwick, Horsham, West Sussex, RH12 3BP |
| HOLLIDAY, Steven John RESIGNED | Director | 22 Oct 1998 | 11 May 2000 | | October 1956 | 19 Claremont Road, St Margarets, Twickenham, Middlesex, TW1 2QX |
| HUDDLE, Stephen Charles RESIGNED | Director | 01 Aug 1996 | 11 May 2000 | England | February 1951 | 21 Dunsany Road, London, W14 0JP |
| KEENAN, Nicholas Mark RESIGNED | Director | 06 Jul 2007 | 15 Nov 2010 | Uk | May 1972 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| KREKSHI, Fuad RESIGNED | Director | 08 Jun 2020 | 18 Aug 2021 | United Arab Emirates | May 1952 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| LOCKHART, Michael Whitelaw RESIGNED | Director | | 31 Jul 1995 | | April 1948 | 51 Waterman Way, London, E1 9QW |
| LORATO, Roberto RESIGNED | Director | 10 May 2001 | 11 Dec 2001 | | April 1958 | 56 Gladstone Place, Queens Cross, Aberdeen, Grampian, AB10 6XA |
| LUSURIELLO, Luigino RESIGNED | Director | 12 Oct 2006 | 14 Nov 2007 | | August 1961 | 25 Via Papa Giovanni Xxiii, Peschiera Borromeo, (Mi), Italy |
| MIDMER, Richard Neil RESIGNED | Director | 14 Feb 2000 | 11 May 2000 | England | July 1954 | The Garden House, 30a Clare Lawn Avenue, London, SW14 8BG |
| MIRABELLI, Giuseppe RESIGNED | Director | 08 Aug 2002 | 02 Dec 2002 | | May 1949 | Via C Bonacossa 94 27020, Dorno, Italy |
| PAGANI, Alberto RESIGNED | Director | 11 May 2000 | 20 Mar 2001 | | April 1951 | Corso Sempione 33, Milano, 20145, Italy |
| PALERMO, Denis RESIGNED | Director | 25 Jul 2023 | 17 Mar 2025 | Australia | November 1975 | 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 |
| 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 RESIGNED | Director | 13 Feb 2014 | 08 Jun 2020 | Australia | December 1957 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| POLO, Franco, Dr RESIGNED | Director | 15 Nov 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 |
| SGANZERLA, Ennio RESIGNED | Director | 11 Dec 2001 | 02 Dec 2002 | | May 1944 | Via Ravenna 7, 20097 Donato Milanese(Mi), Milan, FOREIGN, Italy |
| 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 | 04 Oct 2004 | 19 Dec 2005 | United Kingdom | June 1957 | Pilton Manor, Pilton, Peterborough, PE8 5SN |
| THOMAS, David Howard RESIGNED | Director | 11 Dec 2001 | 08 Aug 2002 | | June 1957 | Castle Mead, Chalk Lane, Hyde Heath, Amersham, Buckinghamshire, HP6 5SA |
| TREZZA, Mila RESIGNED | Director | 18 Nov 2019 | 30 Oct 2020 | England | September 1975 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| VAN DER WELLE, John Alexander RESIGNED | Director | 09 Jan 1996 | 03 Nov 1998 | | May 1955 | 20 Longcroft Avenue, Harpenden, Hertfordshire, AL5 2QZ |
| VASQUES, Luciano Maria RESIGNED | Director | 27 Jan 2023 | 03 Oct 2024 | United Kingdom | April 1963 | Eni House, 10 Ebury Bridge Road, London, SW1W 8PZ |
| VELLA, Antonio RESIGNED | Director | 02 Dec 2002 | 04 Oct 2004 | | May 1957 | Via Dossetti 9/A,, 20097 San Donato Milanese, Milan, FOREIGN |
| VERGINE, Umberto RESIGNED | Director | 19 Dec 2005 | 12 Oct 2006 | | January 1957 | 16a, Via D.Bellincioni, San Donato Milanese, Milan, 20097, Italy |
| WALMSLEY, John Arthur RESIGNED | Director | 15 Mar 1995 | 22 Oct 1998 | | December 1946 | 19 Coombe Lane West, Kingston, Surrey, KT2 7EW |
| WHYATT, Anthony Stewart RESIGNED | Director | | 16 Nov 1995 | | April 1937 | 8 Campden Hill Square, London, W8 7LB |
| WOOLF, Joseph Michael RESIGNED | Director | 09 Jan 1996 | 30 Jun 1998 | | February 1953 | Hill House, Brookshill Drive, Harrow, Middlesex, HA3 6SB |