Fresh from the capture of free-scoring Hemel midfielder Jordan Parkes, the Blues have added even more experience to their squad.
Ronnie Henry, the Stevenage stalwart, will play for the Essex club next season.
The reliable defender has been convinced by manager Harry Wheeler to join their National League South assault.
Billericay are looking to earn promotion next season after falling short of their play-off ambitions last season.
Wheeler said: “Ronnie is a Stevenage legend amongst other big clubs he has been at, he is a leader and a great club man.
“He will be a great addition with his vast league experience.
“He knows how to control games from the back and it’s taken a while but I am delighted to say he is now a Billericay Town player.”