Markel Insurance, the insurance division of Markel Group, has formed a strategic partnership with Greenhouse Specialty Insurance Services, a program administrator focused on environmental casualty risks.
Greenhouse Specialty blends deep underwriting expertise with a proprietary technology platform designed to streamline submissions and elevate underwriting accuracy. Through this collaboration, the firms will co-develop a programme tailored to the complexities of today’s environmental exposures.
The partnership aims to deliver targeted, technology-enabled solutions for an increasingly intricate risk landscape, while equipping brokers and clients with tools to support sustainable, long-term growth.
A key differentiator for Greenhouse Specialty is its selective distribution model. Prioritising quality over volume, the firm provides brokers with enhanced support, bespoke underwriting solutions and consistent service. This approach enables underwriters to maintain the high standards necessary to deliver innovative environmental coverage.
Founders Josh Rubin and Geoff Bernardo bring a complementary track record of building successful insurance programmes. Their vision is centred on balancing growth with responsibility—an ethos aligned closely with Markel’s long-term commitment to the environmental casualty sector.
Advancing sustainable growth
For brokers, the collaboration offers differentiated capabilities to compete more effectively in the environmental insurance market. For insurers, it highlights the rising importance of specialised underwriting, technology integration and service-led distribution.
By combining Markel’s established environmental casualty expertise with Greenhouse Specialty’s modern, tech-enabled underwriting platform and selective distribution strategy, the partnership enhances market choice and sets a new benchmark for programme design and broker support.
