The LFS is run by a committee of officers and ordinary members who are elected at the Annual General Meeting. The following were approved by the 2020 AGM delayed from March, due to COVID-19 restrictions and held online in Spetember.
The current (2020-21) members are:
| Chair | Alan Rowland |
| Vice Chair | Belinda Cox |
| Hon. Secretary | Michael Williams |
| Hon. Treasurer | Chris Dee |
| Hon. Membership Secretary | Sandra Rowland |
| Ordinary members | Richard Breese (2020-2023) |
| Roger Chapple (2020-2023) | |
| Andrew Cleave (2018-2021) | |
| André Coutanche (2018-2021) | |
| Tom Dickins (2019-2022) Personal webpage | |
| Trevor Dobie (2018-2021) | |
| Jennifer George (2018-2021) | |
| Keith Hiscock (2018-2021) | |
| Tim Jones (2019-2022) | |
| Chris Pawson (2018-2021) | |
| Frances Stuart (2018-2021) | |
| Chris Webster (2018-2021) | |
| Co-opted (Annual Report Editor) | Tim Davis |
| Co-opted (Marine Protected Area Advisory Group) |
Robert Irving |
The LFS also honours the following as presidents of the society:
| President | Diana Keast |
| Vice Presidents | Jennifer George |
| John A Harman | |
| Keith Hiscock | |
| Roger Chapple |
The constitution may be viewed here.