Atrium is a London-based Lloyd’s Managing Agency that manages Syndicate 609.

Atrium has a proven track record of generating underwriting profits across market cycles and has produced underwriting profits every year since it was founded in 1994. The purchase of Atrium also included the acquisition of Arden Reinsurance Company Ltd., a Class IV Bermuda reinsurer that provides a 65% quota share for the portion of the syndicate for which Atrium provides capital.