Our Leadership

Our leaders have decades of experience delivering strong insurance programs. Learn more about our Managing Director and President.

Michael Westwood PhotoMichael Westwood 

Michael Westwood is President of Marsh Sponsored Programs (MSP) and is responsible for delivering insurance solutions for business and affinity groups. Prior to joining MSP in 2017, Michael spent 18 years at Aon Affinity as Executive Vice President of Operations. Michael oversaw professional liability, debt cancellation, travel, specialty products, flood, and pet insurance businesses, in addition to leading merger and acquisition due diligence and operational assessments with a focus on portfolio diversification that improved divisional growth strategies. Early in his career, Michael held roles at PricewaterhouseCoopers and British Airways developing and modernizing global operations.


Tonya Williamson PhotoTonya Williamson
Managing Director

Tonya Williamson is the Managing Director of Marsh Sponsored Programs and is in charge of account management. She has more than 20 years of experience in developing and implementing tailored insurance programs for small business owners, independent contractors, and franchisees. Key aspects of the program management process include: negotiating product and plan design, determining implementation processes and strategies, and working to craft marketing and promotional campaigns to communicate program value and generate participation among the target audience.