Lincoln have signed Stevenage winger Tom Pett, while Blackburn defender Scott Wharton and Bournemouth goalkeeper Ryan Allsop have joined on loan until the end of the season.
Pett, 26, has signed a two-and-a-half-year deal for an undisclosed fee.
Wharton, 20, has made two appearances in 2017-18 and spent time on loan in League Two with Cambridge last season.
Allsop, 25, most recently played for Blackpool where he made 22 appearances for the Seasiders while on loan.
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