Investment management firm Markel CatCo has announced two promotions.

Alissa Fredericks has become chief risk officer after joining the company a year ago as a senior actuary.

And Simon Moore has been appointed co-chief underwriting officer, alongside Lindsay Watson.

Ms Fredericks previously worked at AIR Worldwide, where she lead catastrophe risk modelling consulting services for the insurance and reinsurance markets.

Mr Moore joined Markel CatCo two years ago as a senior underwriter.

He joined the firm after a stint as a senior technical reinsurance broker at Aon Benfield.

Both Mr Moore and Ms Watson will report to Ms Fredericks.

Tony Belisle, CEO of Markel CatCo, said: “Since Markel Corporation acquired CatCo the company’s assets under management have nearly doubled to $4.3 billion.

“With their strong analytical and actuarial backgrounds, Simon and Alissa have played a critical part in supporting this rapid growth.

“As senior members of the Markel CatCo team, they will play increasingly important leadership roles during the next stage of the company’s development.”

Markel acquired CatCo at the end of 2015.