Out of contract players Scott Laird, John Mousinho and Ronnie Henry are set to leave the club this Summer.
Laird and Mousinho have both turned down improved contract offers whilst Henry has been released.
Left back Laird joined the club in January 2008 and has since been a mainstay in the Boro defence whilst Mousinho, who scored the winning goal in the club's League Two Play Off Final a year ago, has enjoyed a two-year spell with Boro.
Henry is the club's longest serving player having joined seven years ago. In his time with Boro he has seen the club rise from non-league to the League One Play Offs but has recently found opportunities in the first team lacking. He described it as "his time to move on" when speaking to the official website.
"I have had an absolutely unbelievable time with the club and I couldn't have wished to have spent seven years anywhere else." He began.
A proud day for Henry at White Hart Lane.
"I'd like to thank everyone that has been part of the club at that time, all of the staff, my team mates and most importantly the fans who have been brilliant to me.
"I found it very hard to leave the club, today hasn't been a great day. I just feel that now is my time to move on, I'm 28 years old and have enjoyed the best years of my career here, but that had to come to an end at some point. I'm delighted with the history I have been part of with Stevenage and wouldn't trade it for anything.
Henry against Preston in what proved to be his final game for the club.
"I want to wish the club and its supporters the best of luck for the future and I'm sure I'll be back at the Lamex watching some games when I can."