Mile Oak have appointed Archie Cramer as assistant manager of the men's first team, the club announced.
Worthing United have signed Matt Simpson from Lancing FC. Simpson had spent an extended spell with Lancing, having previously played for Seaford Town and Ringmer AFC. He is straight into Saturday's squad.
Reigate Priory have brought in experienced centre-back Matt Rendell, a former Billingshurst captain.
Shoreham have confirmed the signing of Jordan Brown, who went straight into the starting XI on Saturday.
Away from the transfer news, Jarvis Brook said Will Street has had his second operation this week. He will stay in Sussex County hospital for another week before hopefully going home to begin his recovery. The club thanked everyone who has supported him, sent messages and visited.