The Spireites, relegated back to League Two last season, kick off their preparations with a trip to Staveley on Saturday.
Sheridan has signed five new players and said: "They've all fitted in really well. They've got a bit of character about them so they have fitted in okay."
On the possibility of further new signings, Sheridan added: "I've got to look at the budget and at what I need and at what is available to me. But at this moment I'm happy with what I've got and if we can keep everyone fit then we'll be a strong outfit."