Experienced centre Blake Ayshford, five-eighth Ata Hingano, 2017 rookie Charnze Nicoll-Klokstad and halfback Mason Lino have all been re-signed by the Warriors for next season and beyond.
Their contracts have now been officially registered while promising NYC players Lewis Soosemea and Joe Vuna have also been secured on new deals.
"These are all key signings for us as we continue to work towards settling our squad for next year," Warriors recruitment and development manager Tony Iro said.
Ayshford, 29, is fresh from a try-scoring double against the Titans on Saturday and will extend his stay at the club through to the end of 2019.
Hingano, 20, has signed a three-year deal, Nicoll-Klokstad, 21, has committed to the club for a further two seasons and 23-year-old Lino has also signed a two-year deal.