Warrington Wolves have agreed new contracts with twins Rhys and Ben Evans, Gene Ormsby, Anthony England, James Laithwaite and George King.
Outside backs Ormsby and Rhys Evans, both 21, have crossed 10 and 11 times respectively in Super League XIX - only Joel Monaghan has scored more for Wire.
England, Ormsby and King have signed two-year deals, with the Evans twins and Laithwaite, 22, committing to 2017.
"Stability within the group's one of our strengths," said boss Tony Smith.
"We're once again showing that. All six players have performed consistently well of late and I look forward to continuing their development."
Teenage forward King has featured once this term, but the other five have made between 10 and 15 league appearances for last season's beaten Grand Finalists.
Prop-forward England, 27, re-entered full-time rugby league last year, after having previously had spells at Castleford and Gateshead.