Sean O'Brien, James Connolly, Peter Robb and Caolin Blade have all signed new deals with Connacht.
All 4 who are academy graduates have committed themselves to Pat Lams side until 2018.
Meanwhile the Pro 12 champions in conjunction with the I.R.F.U have confirmed the signing of Ukrainain born Prop Ivan Soroka.
Soroka had been on trial at Clontarff.
