Mosaic Insurance, the Bermudian-based global specialty insurer, has appointed Karen Reilly and David Barr to lead its respective US and international business growth in the environmental liability sector.

Based in Atlanta, Ms Reilly has 18-plus years of experience in the environmental insurance sphere, holding roles across underwriting, product development and management throughout her career.

She was among the leading US environmental risk specialists Mosaic added to its team last year to drive a strategic build-out of business across the Americas.

Mr Barr has been based in London since 2022, when Mosaic launched its global environmental liability division as the company’s seventh specialty underwriting unit.

He is a qualified geologist with more than 30 years’ professional experience in environmental insurance underwriting and broking, the petroleum industry and environmental consultancy.

Mosaic has 20 environmental specialists spanning the US and focusing on international business from London.

The company said the appointees’ dual focus will be to develop innovative products to address emerging environmental risks and help Mosaic clients navigate an increasingly complex regulatory landscape.

Mosaic said its evolution as a global agency continues, with its business increasingly being driven by trade-capital partners across its seven specialty lines.

The company said it underwrites on behalf of close to 30 insurers worldwide, originating more than $1 billion in gross written premiums over the past two years alone for agency partners.

As well as environmental liability, its business lines include political violence, transactional liability, cyber, political risk, financial institutions and professional liability.