At Mosaic, claims is our focus. We recognize our reputation rests on our customers’ claims experience, which is why our team and our approach is integrated into all lines of business from the outset.

Our technically experienced in-house experts provide coverage analysis, strategic overview, and legal and data-driven insights, with continual feedback to our underwriting teams.

Our approach is one of ownership, transparency and efficiency. Achieving fair outcomes for our customers is the end goal.

Reach out to our claims team before a claim arises.

For loss run details, contact:



With her background in law, underwriting, and broking, Natalie brings a 360-degree understanding of claims and the fundamental importance of fair outcomes to her role at Mosaic. She qualified as an insurance lawyer in 2001 and worked in private practice in the City of London before joining Ironshore/Pembroke Syndicate 4000 as a claims manager in 2010, where she managed a broad spectrum of claims across multiple lines of business. Natalie later served Aon’s Global Broking Centre as head of financial, professional & specialty claims, overseeing a cradle-to-grave claims service to wholesale and retail clients globally.
+44 (0)7894 107 646

Ethan is a member of our claims team, with a focus on financial-lines and environmental-liability claims. He has more than 10 years’ industry experience managing notifications from various jurisdictions and entity sizes. He is also well-versed in the Lloyd’s and company markets, after six years as a financial-lines senior claims adjuster with DXC Technology, and previously as a claims broker at Grosvenor Brokers.
+44 (0)7795 214 508

Elissa brings more than 15 years of industry knowledge and works with Mosaic’s brokers and insureds throughout the Americas to guide coverage under the company’s six product lines. She started her insurance career as claims counsel with AIG and later was cyber and technology product manager at AXA XL. Elissa also has extensive experience counseling companies and proactively mitigating risk from her tenure on the broker side, including roles at Marsh and Lockton. Prior to 2006, she began her legal career in tax with Deloitte.
+1 617 306 0520

Rachel is an experienced senior claims adjuster, responsible for handling professional liability, financial institutions, political violence, war & terror, and cyber claims at Mosaic. She has handled specialty lines claims in the London market since 2009, latterly at a Lloyd’s syndicate, where she dealt with complex claims across multiple jurisdictions. She has a law degree from the University of Reading, UK.
+44 (0)7951 905 114

Heidi handles reps and warranties claims for Mosaic’s transactional liability division. Her expertise is in mergers and acquisitions and financial lines claims handling. After practicing M&A law on Wall Street, Heidi began her insurance career at Chubb, overseeing D&O claims for public entities. She holds a law degree from Vanderbilt University, Nashville, TN.
1 201 321 2187