| LLOYD, Peter John, Captain ACTIVE | Secretary | 18 May 2017 | | | | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| COWLING, Graham, Captain ACTIVE | Director | 06 Apr 2017 | | Cyprus | July 1962 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| DEWEY, Colin David, Professor ACTIVE | Director | 07 Dec 2023 | | United States | August 1962 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| EDMONSTON, Stuart Duncan ACTIVE | Director | 07 Dec 2023 | | England | August 1975 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| GOVEAS, Ivor, Captain ACTIVE | Director | 27 Jul 2020 | | Ireland | March 1957 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| GOZDZIK, Dariusz Jacek ACTIVE | Director | 07 Dec 2023 | | England | August 1957 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| HILDEBRAND, Robert David ACTIVE | Director | 24 Jul 2025 | | Australia | April 1978 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| LANE, Deirdre ACTIVE | Director | 07 Jul 2022 | | Ireland | July 1982 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| NASH, Nicholas, Captain ACTIVE | Director | 07 Jul 2022 | | England | December 1960 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| NAYLOR, Philip Henry Gordon ACTIVE | Director | 25 Jul 2024 | | England | November 1957 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| SNIDER, David, Captain ACTIVE | Director | 27 Jul 2020 | | Canada | June 1957 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| TELFER, Duncan Mccorquodale, Captain ACTIVE | Director | 24 May 2012 | | United Kingdom | March 1959 | 202 Lambeth Road, London, SE1 7LQ |
| VANDENBORN, Yves, Captain ACTIVE | Director | 21 Mar 2024 | | Singapore | June 1974 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| PARKER, Charles Julian RESIGNED | Secretary | | 15 May 2003 | | | The Nautical Institute 202 Lambeth Road, London, SE1 7LQ |
| WAKE, Cedric Philip RESIGNED | Secretary | 15 May 2003 | 17 May 2017 | | | 22 Lytton Grove, Putney, London, SW15 2HA |
| AHMED, Moin, Captain RESIGNED | Director | 23 May 2018 | 21 Mar 2024 | England | April 1957 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| ANDERSON, Philip, Dr RESIGNED | Director | 27 May 2004 | 12 Jun 2008 | England | July 1952 | 32 Bishops Hill, Acomb, Hexham, Northumberland, NE46 4NH |
| AUSTIN, Karl Duke, Captain RESIGNED | Director | 23 Jun 2019 | 24 Jul 2025 | United States | October 1974 | 202 Lambeth Road, Lambeth Road, London, SE1 7LQ, England |
| BAILEY, Trevor John RESIGNED | Director | 10 Apr 2014 | 26 Sep 2018 | United Kingdom | April 1953 | 202 Lambeth Road, London, SE1 7LQ |
| BARRITT, Michael Kenneth, Captain RESIGNED | Director | 24 May 2012 | 23 Jun 2019 | United Kingdom | April 1948 | 202 Lambeth Road, London, SE1 7LQ |
| BEETHAM, Eric Harvey, Captain RESIGNED | Director | 24 May 2012 | 14 Mar 2014 | England | June 1939 | 202 Lambeth Road, London, SE1 7LQ |
| BEETHAM, Eric Harvey, Captain RESIGNED | Director | 27 Jun 1996 | 26 May 2000 | England | June 1939 | 126 Timberbank, Meopham, Gravesend, Kent, DA13 0SW |
| BELL, Douglas, Captain RESIGNED | Director | 24 May 2012 | 06 Apr 2017 | England | September 1936 | 202 Lambeth Road, London, SE1 7LQ |
| BENDALL, David RESIGNED | Director | 24 May 2012 | 23 Jun 2019 | Australia | October 1940 | 202 Lambeth Road, London, SE1 7LQ |
| BHUIYAN, Zillur Rahman, Captain RESIGNED | Director | 07 Apr 2016 | 07 Jul 2022 | Bangladesh | January 1956 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| BOYLE, Peter, Captain RESIGNED | Director | 14 May 1999 | 14 Jun 2007 | | February 1937 | Snowdrop Villa, Bertie Fen Lane, Pinchbeck, Spalding, Lincolnshire, PE11 3SR |
| BRINK, Allen, Captain RESIGNED | Director | 23 May 2018 | 21 Mar 2024 | South Africa | May 1953 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| CASHIN, Ronald RESIGNED | Director | | 15 May 1999 | England | March 1928 | 8 Roseacre, West Kirby, Wirral, Merseyside, CH48 5JW |
| COATES, Richard Alderson, Captain RESIGNED | Director | 12 Jun 2008 | 06 Apr 2017 | United Kingdom | September 1958 | 60, Northfield, Swanland, North Ferriby, East Yorks, HU14 3RB |
| COLES, Frank RESIGNED | Director | 07 Apr 2016 | 07 Jul 2022 | United States | April 1959 | 202 Lambeth Road, London, SE1 7LQ |
| COOPER, Nicholas, Captain RESIGNED | Director | 12 Jun 2008 | 10 Jun 2010 | United Kingdom | December 1941 | The Old Forge, Church Lane, Cropredy, Banbury, Oxon, OX17 1NQ |
| COOPER, Nicholas, Captain RESIGNED | Director | 10 May 2006 | 12 Jun 2008 | United Kingdom | December 1941 | The Old Forge, Church Lane, Cropredy, Banbury, Oxon, OX17 1NQ |
| HINCHLIFFE, Peter Brenton RESIGNED | Director | 24 May 2012 | 27 Jun 2024 | England | October 1954 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| HIRANANDANI, Nand, Captain RESIGNED | Director | 24 May 2012 | 23 May 2018 | India | August 1944 | 202 Lambeth Road, London, SE1 7LQ |
| HOLDER, Leonard Arthur RESIGNED | Director | | 27 Jun 1996 | | February 1936 | Hatherwood 41 Grange Road, Heswall, Wirral, Merseyside, L60 7RY |
| LANG, George James Paisley RESIGNED | Director | 23 May 2018 | 21 Mar 2024 | England | March 1949 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| LANG, George James Paisley RESIGNED | Director | 24 May 2012 | 06 Apr 2017 | England | March 1949 | 202 Lambeth Road, London, SE1 7LQ |
| MACKENZIE, David John, Rear Admiral RESIGNED | Director | | 14 May 1993 | | October 1929 | Auckleeks House, Calvine, Pitlochry, Perthshire, PH18 5UF |
| MATHISON, Ian RESIGNED | Director | 06 Apr 2017 | 07 Dec 2023 | United Kingdom | June 1948 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| MENEZES, John Prasad, Captain RESIGNED | Director | 07 Apr 2016 | 07 Jul 2022 | India | December 1957 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| MIDDLETON, Robin Buchan, Captain RESIGNED | Director | 14 Jun 2007 | 23 May 2018 | United Kingdom | April 1944 | 7 St Ternans Road, Newtonhill, Stonehaven, Kincardineshire, AB39 3PF |
| MIDDLETON, Robin Buchan, Captain RESIGNED | Director | 21 May 2002 | 10 May 2006 | United Kingdom | April 1944 | 7 St Ternans Road, Newtonhill, Stonehaven, Kincardineshire, AB39 3PF |
| NUYTEMANS, Marc, Captain RESIGNED | Director | 10 Apr 2014 | 27 Jul 2020 | Belgium | July 1961 | 202 Lambeth Road, London, SE1 7LQ |
| ROBINSON, James Alphonsus, Captain RESIGNED | Director | 10 Jun 2010 | 23 May 2018 | Ireland | August 1949 | 202 Lambeth Road, London, SE1 7LQ |
| RUSSELL, Peter John David RESIGNED | Director | 14 May 1993 | 21 May 2002 | England | October 1934 | 3 Court House Postling Court, The Street Postling, Hythe, Kent, CT21 4EX |
| SCOTT, Edward Martin, Captain RESIGNED | Director | 26 May 2000 | 27 May 2004 | | December 1942 | 3 Boundary House, 224 Saint Margarets Road, Twickenham, Middlesex, TW1 1NW |
| SZYMANSKI, Jakub Pawel, Captain RESIGNED | Director | 06 Apr 2017 | 07 Dec 2023 | England | August 1966 | 200b, The Nautical Institute, 200b Lambeth Road, London, Greater London, SE1 7JY, United Kingdom |
| SZYMANSKI, Jakub Pawel, Captain RESIGNED | Director | 24 May 2012 | 07 Apr 2016 | England | August 1966 | 202 Lambeth Road, London, SE1 7LQ |