| SL0162 | SUBDEN Rodger | Louth Athletic Club | 22/01/2025 | 01/01/2025 | 31/12/2025 |
| SL0171 | STOW Terence | Friendship Lincs | 01/08/2025 | 21/09/2025 | 20/09/2026 |
| SL0069 | STORER Andrew | Age UK Lindsey | 10/02/2025 | 01/01/2025 | 31/12/2025 |
| SL0074 | STONE J | Rotary Club of Skegness | 21/02/2025 | 01/01/2025 | 31/12/2025 |
| SL0246 | SPROSTON Linda | Utterby St Andrew's Church | 08/08/2025 | 31/07/2025 | 30/07/2026 |
| SL0084 | SOUZO Juan | North Somercotes Village Institute | 25/02/2025 | 01/01/2025 | 31/12/2025 |
| SL0042 | SMITH Pamela | Keith's Rescue Dogs | 08/01/2025 | 01/01/2025 | 31/12/2025 |
| SL0080 | SMITH Emma | Kidgate Primary Home & School Association | 01/10/2025 | 01/01/2026 | 31/12/2026 |
| SL0099 | SIMPSON Jacqueline | Partney Parish Tote | 03/12/2025 | 01/01/2026 | 31/12/2026 |
| SL0177 | SHAW Rebecca | Horncastle Queen Elizabeth's Grammar Sch' Parents Assoc' | 20/10/2025 | 29/10/2025 | 28/10/2026 |