Goalkeeper Shwan Jalal will remain in the division and has agreed to join new boys Chesterfield.
He is the second key member of the champions to leave Moss Rose after midfielder Danny Whitehead put pen to paper at Salford City last week.
New Chesterfield manager Martin Allen was thrilled with his first signing.
“We have signed Shwan Jalal on a two year contract on a free transfer,” he wrote on the club’s website.
“Shwan has just won this division, playing 41 times. We have a strong, reliable and decent keeper. On top of that, he knows what it takes to be a champion.”
Allen, who left Barnet at the end of the season, is targeting a return to League Two with the Spireites.