Cardiff Blues chief executive Richard Holland is working on tying in both Sam Warburton and Leigh Halfpenny on fresh deals following next season.
The victorious British and Irish Lions duo have one year left to run on their current deals, with the pair set to become hot property across Europe.
But the team's CEO is in constant contact with Halfpenny's agent as he seeks to secure his future, with Warburton equally as important.
"I've been having discussions with Leigh's agent for a while now," Holland told BBC Sport.
"And not just Leigh but other players who are out of contract at the end of next season.
"Sam is an important part of Cardiff Blues, and as a Lions captain and everything that comes with it we're going to be having discussions with his agent as well."
Cardiff Blues will be without inside centre Jamie Roberts this season after he agreed to a move to Racing Metro, which has added to Holland's urgency to have talks.
"Obviously off the back of the performances that the Blues boys put in over in Australia it's going to be even more important for us to keep them, and we're going to be working very hard to do just that," Holland added.
"All our international players we're keen to retain, we're keen to keep them at the Cardiff Blues to secure a bright future for us and complement the youngsters who have come through the system.
"It's exciting times but we're going to be fighting hard to keep them in Wales.
"The discussions we've had at the moment are quite high level, we haven't moved onto the financial numbers as of yet.
"I'm confident we've got the set-up in place and the ambition as a region - coupled with the desire from the Union to work with all four regions - to ensure we can retain these players."