Half-backs Jay West, Jacob Fewtrell, Rhys Williams and Joe Nellany are the latest players to re-sign with Bournville for the 2024/25 season.
Scrum-half West arrived at Avery Fields from Broadstreet in November having previously played for Tynedale against Bournville in the 2021/22 season.
He made his debut against Hornets in December and then played every minute of the last 14 matches of the campaign, scoring four tries including a brace in the home win over Old Redcliffians in January.
Fly-half Fewtrell joined Bournville from Stourbridge 12 months ago having previously played for Birmingham Moseley, Exeter University and Leicester Tigers Academy.
He made 24 appearances in his first season at Avery Fields and kicked 140 points to finish as leading points scorer.
Williams, another fly-half, joined his brother Owen at Avery Fields two years ago when he returned to the Midlands from London where he played for London Welsh and Teddington having played his formative rugby for Stourbridge Lions.
A strong and pacy runner, Williams scored seven tries in his second season with Bournville and ended it by kicking a last minute penalty to snatch at dramatic 28-27 victory over Hinckley at Avery Fields.
Nellany is in his second spell with Bournville having made three appearances in the 2017/18.
His career has been badly disrupted by serious knee injuries but he impressed when he returned to action as a replacement at Dings Crusaders in March having been a regular for the Blues before that.
Nellany, who can play across the back division, is a former Warwick School captain, has previous National Leagues experience from stints with Coventry and Darlington Mowden Park.
He played for Leeds University from 2013 to 2017 and also for the Worcester Warriors and Leeds Carnegie academy teams.