Scunthorpe midfielder Michael Collins has agreed a new one-year deal.
The 27-year-old made 30 appearances last season as the Iron suffered relegation to League Two on the final day.
He joined the Glanford Park side from Huddersfield for an undisclosed fee in 2010.
Meanwhile, the Iron have signed Gainsborough Trinity winger Terry Hawkridge, 23, and defender Luke Waterfall, 22, for undisclosed fees.
Both players have signed one-year contracts.