Coldwell Banker Warburg is folding into Compass. Both Compass and the Coldwell Banker brand are owned by Compass International Holdings. The former New York-based Coldwell Banker Realty office will now operate as Warburg at Compass, according to a Compass spokesperson. “We’re excited that Warburg’s agents are joining Compass’ New York City operations,” the Compass spokesperson wrote in an email. The brokerage has not set out a timeline for Coldwell Banker Warburg’s transition.