Graeme Morrison, Hefin O'Hare and Colin Gregor have re-signed for Glasgow Warriors for a further two years.
Graeme Morrison has been with Glasgow since 2003
Scotland centre Morrison, 24, has been a first-team regular since signing from Glasgow Hawks in 2003.
Winger O'Hare, 27, is a former Welsh rugby league international who signed in 2005 after moving codes.
Gregor, a 25-year-old fly-half, won 17 Scotland 7s caps before turning professional with Glasgow for the 2005-06 season.
Coach Sean Lineen said: "Graeme has been with us for a few seasons now, but he has got a big year coming up with us and internationally, having earned a place in the Scotland A Barclays Churchill Cup training squad this summer.
"He's an intimidating player and I'm looking for him to grab the bull by the horns and deliver his best rugby in the coming seasons.
It's exciting to watch a player like Colin control a backline and show off his obvious skill with the ball
Glasgow coach Sean Lineen
"Hefin has been a revelation this season and, if everyone had a heart the size of his, we'd be unstoppable.
"He always gives 100% and his work ethic is phenomenal, so he's a great player to have in your squad.
"He's among the Magners League's top try scorers this season and this announcement comes in recognition of his achievements.
"Colin is another fantastic re-signing for us.
"He has lived partly in the shadow of Dan Parks this year and has paid a small price for his versatility, but there are opportunities ahead while Dan is in France for the World Cup in the autumn.
"It's exciting to watch a player like Colin control a backline and show off his obvious skill with the ball."
The news follows the re-signings of Parks, Sam Pinder, Steve Swindall, Fergus Thomson, Eric Milligan and James Eddie in the past week and a half.
In addition, Dougie Hall, Ed Kalman and Richie Vernon will move to the Warriors from Scotland's other two pro-teams ahead of next season.