Rokstone launches US financial lines platform

Rokstone, part of Aventum Group, has launched a US financial lines platform, initially focused on errors and omissions insurance.

Based in New York, the platform is led by James Hebert, who joins after a decade at AIG. Hebert brings financial lines underwriting experience and previously spent more than eight years in claims.

The initial E&O offering will be written on an excess basis, backed by $5 million in A-rated capacity from Builders Insurance. It targets small and midsize businesses through a digital trading process, with open-market placement available for larger and more complex accounts.

The platform uses ATOMX, Aventum’s proprietary technology, to support quoting, binding, and policy issuance. Rokstone plans to expand into additional financial lines, including D&O, cyber, financial institutions, and M&A.