Centre Paddy Wallace and prop Tom Court have agreed new deals to continue playing for Ireland and Ulster.
Wallace has signed a one-year deal which will see him contracted to the IRFU and Ulster Rugby until June 2013.
Court has agreed a two-year term which will see him wear Ulster and Ireland colours until June 2014.
Both players were part of the Ireland squad that reached the quarter-final stage of this year's Rugby World Cup in New Zealand.
Wallace is the longest-serving member of the Ulster squad, having made his debut against Swansea in August 2001.
He won his first senior cap when he came on a replacement against South Africa in November 2006 and was a member of the Irish squad which won the Six Nations Grand Slam in 2009.
Court joined Ulster Rugby from Australia at the start of the 2006-07 season.
He was handed his first full Irish cap in the 2009 Six Nations Championship and is now a regular member of Ireland's match day squad.
"I've had a great run here so far and Belfast is very much home now for my young family, so I'm delighted to have signed a new contract with Ulster." commented Court.
"I think we've made some real progress over the past few seasons, the Ulster team is as tight as ever and it's a brilliant boost for me to sign a new deal and ensure that I'm part of that set-up."