The LFS is run by a committee of officers and up to 6 ordinary members who are elected at the AGM each March. The current (2009-10) committee is:
| President | Sir Jack Hayward |
| Vice Presidents | Professor Jennifer George |
| Mr John A Harman | |
| Mrs Diana Keast | |
| Dr Myrtle Ternstrom | |
| Chairman | Dr Keith Hiscock |
| Hon Secretary | Mr Paul James |
| Hon Treasurer | Mr Michael Fry |
| Hon Membership Secretary | Mrs Sandra Rowland |
| Members | Mr Andrew Cleave, MBE (2008-2011) |
| Mr André Coutanche (2008-2011) | |
| Mr Trevor Dobie (2009-12) (working parties) | |
| Mr Simon Dell, MBE (2008-2011) | |
| Mr Colin McShane (2009-2012) (Annual Report editor) | |
| Co-opted | Mr Robert Irving (Marine Nature Reserve Advisory Group) |
| Mrs Ann Wescott (Newsletter editor) | |
| Mr Alan Rowland (Archivist) | |
| Mr Michael A Williams (Librarian) |