Liberty Specialty Markets

Liberty Specialty Markets is a specialty insurance and reinsurance business and part of the Liberty Mutual Insurance Group. Its product range includes construction insurance for Europe, casualty, cyber, directors and officers, energy, financial institutions, financial lines, fine art and specie, marine cargo and hull, professional indemnity, renewable energy, surety bonds and guarantees, and war and terrorism cover, along with affinity and programme business.

Its customers are brokers and insureds. The company describes its core business as the middle market and also writes large industrial risks, affinity groups and programmes, small and medium-sized enterprises, and national and international accounts. It operates as a mutual insurer and works with brokers as its main channel.

The company was founded in 2014 and is registered in London, where it is headquartered. It also has a leadership team in Cologne covering Germany, Austria and CEE. As at 31 December 2025, its combined gross written premium was $4,801 million. It is rated A+ (Stable) by Standard & Poor's and A (Excellent) by A.M. Best, and its Lloyd's syndicate carries the Lloyd's A+ rating.

Product: Specialty commercial insurance and reinsurance lines sold through brokers, including marine, cyber, D&O, financial lines, construction and fine art and specie.