Hiscox appoints Adam Denninger as Chief Operating Officer in the US

Atlanta, GA – July 8, 2025 – Hiscox, the specialist global insurer, has announced the appointment of Adam Denninger to Chief Operating Officer. He will report to Mary Boyd, CEO of Hiscox USA, and will serve on the Hiscox US Leadership Team.

Denninger will lead Hiscox USA’s operations across strategy, transformation, data, and delivery. With over 25 years of experience in operations, product, and underwriting leadership roles, including leading global strategy and implementing comprehensive underwriting processes, Denninger most recently served as Capgemini’s Global Industry Leader for Insurance. Prior to Capgemini, Denninger served as the Chief Operating Officer for EIS Group, Vice President of Personal Lines for the Hartford, and Chief Underwriting Officer of Global Auto and Home for American International Group. Denninger earned his Bachelor’s degree in History from Western Connecticut State University, and Master of Business Administration and Juris Doctor degrees from the University of Connecticut.

“From making the day-to-day smoother for our employees to ensuring we make a customer’s day a little brighter, gold-standard operations are at the heart of all we do. Adam has showcased that gold standard throughout his career,” said Mary Boyd, CEO of Hiscox USA. “Having served as an underwriting, product and operations executive for leading companies across the industry, Adam has a proven track record of significantly boosting revenue, supercharging efficiency across the business, and finetuning underwriting systems. We’re thrilled that Adam will be joining Hiscox and bringing his dynamic leadership to the operations team and the whole business. Every employee, customer, and partner will greatly benefit from his appointment.”

Hiscox USA provides a variety of admitted or specialty risk solutions, including a broad spectrum of errors & omissions, general liability, cyber and data security, media liability, management liability, crime, entertainment, and terrorism insurance products.

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About The Hiscox Group

Hiscox is a global specialist insurer, headquartered in Bermuda and listed on the London Stock Exchange (LSE:HSX). Our ambition is to be a respected insurer with a diverse portfolio by product and geography. We believe that building balance between catastrophe-exposed business and less volatile local specialty business gives us opportunities for profitable growth throughout the insurance cycle.

The Hiscox Group employs over 3,000 people in 14 countries, and has customers worldwide. Through the retail businesses in the UK, Europe, Asia and the USA, we offer a range of specialist insurance for professionals and business customers as well as homeowners. Internationally traded, bigger ticket business and reinsurance is underwritten through Hiscox London Market and Hiscox Re & ILS. In the US, Hiscox small business Insurance is underwritten either by Hiscox Insurance Company Inc., a Chicago-based insurance company, or a Hiscox Syndicate at Lloyd’s, London, which is available on a surplus lines basis through licensed surplus lines brokers.

Our values define our business, with a focus on people, courage, ownership and integrity. We pride ourselves on being true to our word and our award-winning claims service is testament to that. For more information, visit www.hiscoxgroup.com.

Media Contact

Lucy Baines
Hiscox USA
+1 646 560 9399
[email protected]