Proud to be a Lloyd’s underwriter Go Home Who we are Underwriting Claims Relationships Locations News CSR Get in touch Locations Details of our office locations and affiliated companies worldwide Locations London US - Affiliated Companies Atrium operate within the Lloyd's building in the heart of the City of London. Affiliated companies also have offices in North America. Please click on the location links on the left for contact details. People finder Select the right person or choose a product line from the boxes below to see their availability Product Line Location Person Find Atrium Underwriters Ltd is authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority. Atrium Insurance Agency Limited is authorised and regulated by the Financial Conduct Authority. Atrium Insurance Management Services Ltd is a DBA name of Atrium Risk Management Services (Washington) Ltd which is licensed as a Surplus Lines Broker (License # 0N00364) and Adjuster (License # 2N00364) in California. Atrium Privacy Notice Modern Slavery Act Statement Atrium Underwriters Limited Board Diversity Policy © 2016 Atrium Underwriting Group Limited Sitemap Accessibility Legal notices Get in touch