Atrium

Undisclosed



Jamieson is pleased to announce that we have advised the management team of Atrium on the sale from Stone Point Capital to CRC Group (a US brokerage and underwriting distributor backed by CD&R and Stone Point Capital).

Founded in 1984, Atrium is a premier underwriting business at Lloyd’s that manages Syndicate 609 and writes specialty insurance and reinsurance across property, casualty, and specialty business groups. The company generated $1.3B in gross written premium in 2024 and will continue to operate independently post-closing.

John Greenland, Matthew Mowat and Helen Briscoe advised the management team on the transaction and the terms of the new management equity arrangements.