Wasps duo Charlie Davies and Tom Lindsay have both signed two-year contract extensions.
England Saxons hooker Lindsay, who is 24, is a Wasps academy product and has made 41 appearances since his club debut in 2008.
Scrum-half Davies, 21, joined from Stade Francais in 2010 and made his debut later that year.
He started the first game of the season against Saracens but has missed much of the rest of the campaign with injury.
Lindsay said: "I have been at the club since I was 16 and there is nowhere else I would rather play.
"I am really looking forward to being part of the team that is going to grow and develop here in the next few years and I am already enjoying working under Dai Young who is bringing a lot to the club."
Davies added: "This has been a very good environment for me since I joined.
"I am just one of a group of young players who are hugely enthused about the chance we've got over the upcoming seasons to push on and become a title-winning club again."