Will Brown, Tai Ebanks, Lucas Gamblin, Kain Reed, George Rounsfell and Jude Swailes will be with the club on a full-time basis next term after leaving school this summer.
Brown, Gamblin, Reed and Rounsfell all made their debuts for Dave Watson's under-18 team during the last campaign, while all six were regulars at under-16 level.
Last week, the club confirmed that second-year scholars Kieren Aplin, Isaac Gamblin, Mace Goodridge, Jack Robson and Kurtis Russell have been released.
However, Thomas Allan, Lewis Cass, Matthew Longstaff, Oliver Walters, Kelland Watts and Adam Wilson have all been offered professional contracts.