Convex

A specialty insurer and reinsurer founded in 2019 by Stephen Catlin and Paul Brand, with London and Bermuda operations underwriting complex risks.

About Convex

Convex is an international specialty insurance and reinsurance company. It covers complex risks for large commercial clients, which means the sort of cover that big businesses need for unusual or very large exposures. It also offers digital risk management tools and a quick-quote service for events such as corporate, sporting and cultural occasions.

The company was co-founded in 2019 by Stephen Catlin and Paul Brand. Catlin had set up the Catlin underwriting syndicate at Lloyd's in 1984, and Convex says many of the people who made Catlin successful now work there. It describes itself as having a legacy-free balance sheet and modern technology built for its purpose. It does not publish a formal mission, but its stated values are: earn our reputation; straightforward and fair; determined to improve; inspired by opportunity; and enjoy being different.

Convex operates from Bermuda, London, Guernsey and Luxembourg, and its website lists operating locations in Europe and the US as well. London is its UK office, led by Anne Middleton as chief executive, UK. It announced a new Lloyd's syndicate in May 2026, expanding its presence in the London insurance market.

The company shows some of its personality in its public work. It runs The Convex Conversation podcast, which has reached its 200th guest, sponsors Bermudian Olympian Flora Duffy, and leads the Convex Seascape Survey, a five-year ocean science project with the Blue Marine Foundation and the University of Exeter, studying ocean shelves and climate change. It describes itself as a stimulating environment that offers the chance to do something different. These are its own claims.

A specialty insurer employs underwriters, actuaries and analytics specialists, claims handlers, risk managers, finance and legal teams, technology staff and people-and-culture teams. Its leadership page names chief officers for analytics, risk, underwriting, operations, finance, legal and people, which gives a good picture of the range of careers in a company like this. Its leaders include Paul Simons (chief executive, Bermuda), Anne Middleton (chief executive, UK), Claire Ball (chief people officer) and Mark van Zanden (chief analytics officer). The company says it plans to outsource bulk operations and focus on large commercial clients with complex needs, so specialist skills matter. Its Quick Quote portal shows the company also builds digital tools, so technology and product people work alongside underwriters.

What they do

• {'desc': 'Cover for complex risks faced by large commercial clients.', 'title': 'Specialty insurance'}
• {'desc': 'Cover bought by other insurers to share their risks.', 'title': 'Reinsurance'}
• {'desc': 'Technology and data tools that support underwriting and clients.', 'title': 'Digital risk management'}

Key facts

• Co-founded in 2019 by Stephen Catlin and Paul Brand (own About page)
• Offices listed: Bermuda, Guernsey, London, Luxembourg (own About page)
• Five stated values from earn our reputation to enjoy being different (own About page)
• Leads the five-year Convex Seascape Survey with Blue Marine Foundation and University of Exeter (own site)

Website: convexin.com