Lock Grant Gilchrist and full-back Tom Brown have signed two-year contract extensions with Edinburgh.
The 21-year-olds have shown promise this term after breaking into the team while many of their team-mates were at the Rugby World Cup.
Edinburgh head coach Michael Bradley said: "Both Tom and Grant have done exceptionally well this season to stake a claim for the Edinburgh Rugby jersey.
"They exemplify the spirit and drive we look for in all the players."
Bradley predicted that the pair would become more involved in the first team.
"They both have a very exciting couple of years ahead of them as they progress from being hot prospects to senior squad members and I'm delighted that those years will be spent here at Murrayfield," added the coach.