Chesterfield have offered captain Shane Nicholson a one-year extension to his contract with the club.
Nicholson is in his second spell with Chesterfield
Nicholson, who underwent emergency treatment to an infection in his leg, has a couple of weeks to make a decision on the offer.
However strikers Tcham N'Toya and Colin Heath, former scholar Ashley Foyle and on-loan goalkeeper Rob Beckwith have not been offered contracts.
Manager Roy McFarland said: "We hope they they all find openings elsewhere."