| KARANASIOU, Maria ACTIVE | Secretary | 01 Dec 2010 | | | | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| BRANDNER, Andreas ACTIVE | Director | 01 May 2020 | | Austria | April 1952 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| MUÑOZ JEAN BAPTISTE ABELA, Jeanette Mireille, Dr ACTIVE | Director | 10 Aug 2026 | | Malta | April 1981 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| STYLIANOU, Platonas ACTIVE | Director | 01 May 2024 | | Cyprus | March 1971 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| KRIZOVA, Diana RESIGNED | Secretary | 15 Mar 2006 | 01 Dec 2010 | | | Mytna 29, PO BOX 10, Bratislava, 810 05, FOREIGN, Slovakia |
| MAXWELL, Diana Elizabeth RESIGNED | Secretary | 01 Jul 2003 | 20 Feb 2006 | | | 3 Springfields, Amersham, Buckinghamshire, HP6 5JU |
| CLARKS NOMINEES LIMITED RESIGNED | Secretary | 07 Apr 1994 | 30 Jun 2003 | | | Great Western House, Station Road, Reading, Berkshire, RG1 1JX |
| ADAO-DA-FONSECA, Antonio Manuel, Professor RESIGNED | Director | 08 Nov 1996 | 12 Nov 2005 | | January 1947 | Largo Tome Pires 1, Porto, P4150, Portugal |
| AHRENS, Carsten, Professor RESIGNED | Director | 14 Sep 2002 | 18 Oct 2008 | | January 1944 | 14 Bardenfleth, Elsfleth, 26931, Germany |
| BARON, Francois Gerard RESIGNED | Director | 07 Apr 1994 | 14 Sep 2002 | | March 1940 | 2 Les Charmes, Clos Salibert, St Rom La Breteche, France |
| BRANCO, Fernando Antonio Baptista, Professor RESIGNED | Director | 16 Oct 2008 | 01 Jan 2017 | Portugal | January 1953 | No 6,, 8-H Av. Eng. Arantes Oliveira, 1900-222 Lisboa, Portugal |
| CHATZIDAKIS, Aristodimos RESIGNED | Director | 01 Jan 2017 | 05 May 2026 | Greece | April 1951 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| COACKLEY, Richard James RESIGNED | Director | 12 Nov 2005 | 13 Nov 2010 | England | December 1954 | The Laurels 71tarvin Road, Littleton, Cheser, Cheshire, CH3 7DD |
| COLEMAN, Martin Joseph RESIGNED | Director | 12 Nov 2005 | 13 Nov 2010 | Ireland | April 1945 | 44 Greenfield Road, Mount Merrion, County Dublin, IRISH, Ireland |
| COUGHLAN, Paul RESIGNED | Director | 01 May 2024 | 05 May 2026 | Netherlands | November 1965 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| DUSMAN, Alberto, Dottore Ingegnere RESIGNED | Director | 08 Oct 1999 | 14 Sep 2002 | | June 1937 | Via Simmaco 87, Ravenna, 48100, Italy |
| DZDEMIR, Gulay Ayse RESIGNED | Director | 12 Nov 2005 | 18 Oct 2008 | | July 1956 | Doga Sitesi No:53, Gayyolij, Ankara 06810, Turkey |
| ECONOMOPOULOS, Vassilis RESIGNED | Director | 08 Oct 1999 | 31 Dec 2012 | Greece | November 1960 | Stavropoulou 20, Athens, 11252, FOREIGN, Greece |
| ENDRIKSONE, Helena RESIGNED | Director | 01 May 2024 | 05 May 2026 | Latvia | August 1953 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| GEMA, Vija RESIGNED | Director | 01 Jan 2015 | 01 Jan 2017 | Latvia | January 1948 | Berzu Gatve,25, Kadaga, Adazu Nov, Lv-2164, Latvia |
| GUNTHER, Carl August, Dr-Ing RESIGNED | Director | 09 Oct 1999 | 14 Sep 2002 | | June 1955 | Romerstrasse 10, Stolberg, Nord Rhein Westfalen, 52224, Germany |
| HORNBY, Graham RESIGNED | Director | 07 Apr 1994 | 03 Jun 1994 | | February 1930 | The Coach House, Flowers Hill, Pangbourne, Reading, Berkshire, RG8 7BD |
| HOWELL, David Michael RESIGNED | Director | 13 Nov 2010 | 31 Dec 2012 | England | June 1948 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| HUMAR, Gorazd RESIGNED | Director | 18 Oct 2008 | 01 Jan 2017 | Slovenia | July 1949 | 11, Markova Pot 11, 5290 Sempeter Pri, Gorici, Slovenia |
| MANOLIU, Iacint, Professor RESIGNED | Director | 08 Oct 1999 | 12 Nov 2005 | | April 1934 | Str. Dr. Leonte 40, Bucharest, 76256, FOREIGN, Romania |
| MARIANI, Massiomo RESIGNED | Director | 01 Jan 2013 | 01 May 2020 | Italy | May 1948 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| MATIKAINEN, Yrjo Ilmari RESIGNED | Director | 09 Oct 1999 | 18 Oct 2008 | | April 1943 | Kantakylantie 7 N, Helsinki, 00640, FOREIGN, Finland |
| MUÑOZ ABELA, Janet, Dr RESIGNED | Director | 01 May 2024 | 05 May 2026 | Malta | April 1961 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| NATCHEV, Dimitar RESIGNED | Director | 01 Jan 2015 | 05 May 2026 | Bulgaria | August 1965 | 1000 Sofia, 1606 Sofia, Buzludja 6, Bulgaria |
| PIIRSALU, Andres RESIGNED | Director | 01 Jan 2017 | 30 Apr 2020 | Estonia | April 1963 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| PILOT, Georges RESIGNED | Director | 14 Sep 2002 | 12 Nov 2005 | | November 1937 | 11 Rue Rene Coche, Vanves, 92170, France |
| PLICKA, Jiri RESIGNED | Director | 12 Nov 2005 | 13 Nov 2010 | Czech Republic | August 1943 | Sokolska Street 15, Prague 2, Prague 120 00, FOREIGN, Czech Republic |
| RADULOVIC, Olga RESIGNED | Director | 01 May 2024 | 05 May 2026 | Montenegro | December 1964 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| RUBIO, Jose Francisco Saez RESIGNED | Director | 13 Nov 2010 | 01 May 2020 | Spain | November 1974 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| SOIMAKALLIO, Helena Ulla RESIGNED | Director | 18 Oct 2008 | 13 Nov 2010 | Finland | October 1968 | 6b, Kasantie 6b, 00680 Helsinki, Finland |
| STRAGYS, Vincentas RESIGNED | Director | 01 Jan 2013 | 31 Dec 2014 | Lithuania | February 1940 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| STURM, Hermann RESIGNED | Director | 07 Apr 1994 | 06 Oct 1999 | | July 1944 | Montsalvatstr.3, Munich, Bavaria, Germany, 80804 |
| STYLIANOU, Nicos RESIGNED | Director | 13 Nov 2010 | 31 Dec 2012 | Cyprus | November 1943 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| SVANIDZE, Iuri RESIGNED | Director | 01 Jan 2017 | 01 May 2020 | Georgia | January 1961 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| SZYMCZAK, Wlodzimierz RESIGNED | Director | 01 Jan 2013 | 01 May 2024 | Poland | March 1954 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| VEHMASKOSKI, Teemu RESIGNED | Director | 13 Nov 2010 | 31 Dec 2012 | Finland | November 1974 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |
| VOUDIKLARIS, Theodoros RESIGNED | Director | 03 Jun 1994 | 06 Oct 1999 | | May 1936 | Alkmanos Str, 11528 Athens, Greece |
| WHITWELL, John RESIGNED | Director | 06 Jun 1994 | 30 Jun 2001 | | May 1940 | Vyne Cottage, Davis Street Hurst, Reading, Berkshire, RG10 0TH |
| ZYGOURIS, Nick RESIGNED | Director | 01 Jan 2013 | 01 Jan 2017 | Greece | September 1968 | C/O Institution Of Civil Engnrs, Great George Street, London, SW1P 3AA |