Manager Paul Cook officially announced his new backroom team on Monday.
Kevin Lynch, Gerry Carr and Mark Smith have joined recently appointed assistant-manager Leam Richardson at the Proact.
"I'm delighted to welcome them all to the club," said the Spireites boss. "It was important that we had everyone in place as quickly as possible and we're all working hard now on getting ready for the new season."
Lynch has been named first team/development coach with Carr taking over as academy director and Smith handed the role of youth team coach.
Lynch, 38, resigned as manager of non-league Marine earlier this month while Carr (39) assisted Cook when he was manager of Irish side Sligo Rovers.
Smith, who started his playing career at Sheffield Wednesday, had a spell on loan at Chesterfield in 1993. He was assistant-manager of Notts County under Sam Allardyce and has since worked in the academies at Barnsley, Sheffield Wednesday and Sheffield United.
Photo shows Paul Cook and Leam Richardson at the front with, from left to right, on the back row: Mark Smith, Kevin Lynch and Gerry Carr.