| august 17 2023 |  M. Worral | Southend-on-Sea #4 | None | RSD21 252 |
| august 15 2023 | C. Combs | Southend-on-Sea #4 | None | RSD10 000 |
| july 26 2023 | W. Edwardson | Southend-on-Sea #4 | None | RSD21 637 |
| july 24 2023 | D. Strickland | Southend-on-Sea #4 | None | RSD24 615 |
| july 4 2023 | T. Rank | Shining Force | Southend-on-Sea #4 (On loan) | (RSD186 577) |
| june 2 2023 | D. Dingess | Southend-on-Sea #4 | None | RSD35 507 |
| june 1 2023 | T. Sprunt | Southend-on-Sea #4 | None | RSD27 323 |
| may 8 2023 |  F. Zapater | Girbraltar Town | Southend-on-Sea #4 (On loan) | (RSD119 930) |
| may 3 2023 | W. Paton | Southend-on-Sea #4 | None | RSD26 044 |
| april 12 2023 | T. Branham | Southend-on-Sea #4 | None | RSD153 480 |
| april 10 2023 | D. Curling | Southend-on-Sea #4 | None | RSD10 000 |
| march 17 2023 |  W. Done | WhiteHead United | Southend-on-Sea #4 | RSD1 496 257 |
| march 15 2023 | C. Crookshank | Southend-on-Sea #4 | None | RSD32 023 |
| march 15 2023 | M. Mexia | Girbraltar Town | Southend-on-Sea #4 (On loan) | (RSD138 544) |
| march 12 2023 | R. Hitchcock | Southend-on-Sea #4 | None | RSD47 661 |
| january 24 2023 |  O. Senghor | SK Lovīte | Southend-on-Sea #4 (On loan) | (RSD135 547) |
| november 5 2022 | J. Bowie | Southend-on-Sea #4 | None | RSD26 266 |
| august 22 2022 | R. Greatbatch |  Dream Team | Southend-on-Sea #4 (On loan) | (RSD108 214) |
| august 10 2020 | B. Scotland | Southend-on-Sea #4 | None | Player is fired |
| june 29 2020 |  T. Antons | Southend-on-Sea #4 | Sunderland City | RSD1 057 500 |
| may 12 2020 |  B. Szymaszek | Southend-on-Sea #4 | Zdunska Wola | RSD2 156 368 |
| may 9 2020 | Ē. Dimants | Southend-on-Sea #4 | FC Daugavpils #32 | RSD1 700 192 |
| april 14 2020 | A. Vidyashankar | Southend-on-Sea #4 | None | RSD1 586 304 |
| april 13 2020 | T. Bell | Southend-on-Sea #4 | None | Player is fired |
| march 29 2020 | K. Gorrell | Southend-on-Sea #4 | None | Player is fired |
