Chesterfield trio Jay O'Shea, Ritchie Humphreys and Ollie Banks have all signed new deals at the Proact Stadium.
Winger O'Shea has penned a two-year deal, PFA chairman Humpreys has signed a one-year deal while Banks, who had a year left on his previous contract, has committed his future until the end of the 2015/16 season.
"I'm absolutely buzzing to be honest," O'Shea told the club's official website. "When I came here I left a League One club but I knew that this was a club with ambition.
"That's only going to be good for me and obviously for the club as well. I'm going to look to move to Chesterfield now with my family and I'm going to give it everything."
Humphreys, 36, added: "For the age that I am, the amount of games I played last season was an absolute delight and an honour. When the manager offered me another year, I was delighted to sign it."