Barrow Raiders have signed half-back Josh Ward from Leigh and back-row Brad Crellin on permanent deals, while centre Cameron Pitman has joined on a season-long loan.
Ward, 19, has been on loan with Raiders and Centurions team-mate Pitman, 25, has six tries in 19 career games.
Loose-forward Crellin, 25, was most recently with Whitehaven.
"These are great additions to the Barrow Raiders squad," said coach Paul Crarey.
"They are young, vibrant and enthusiastic players who can only benefit the club."
Pitman is the brother of Australia netball international Chelsea Pitman, who is also the girlfriend of Salford and New Zealand Test full-back Kevin Locke.