Leadership Team

Our Leadership Team

Michael F. Irvine

Principal and CEO

Michael began building the company in 1992 after a successful career in the insurance industry. Under his leadership, M.F. Irvine continues to achieve steady and successful growth, and lists as its clients some of the nation’s largest and most prestigious organizations in their respective fields. Mr. Irvine’s vast industry experience, as well as that of his staff, has been the key to the company’s success.

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John K. Ziegler, Jr.

Principal and Executive Vice President

John uses his more than 15 years of financial experience to lend insight to our client base on the challenges and rewards of effective risk management programs and benefit strategies offered. His previous experience as Vice President and Chief Financial Officer of a company with revenues of $200 million is invaluable when discussing risk management, financing, forecasting, and claims projections. Additionally, John has extensive experience with, and has been responsible for, all FASB and SEC reporting requirements. John also spent 4 years at PricewaterhouseCoopers in the Business Assurance Practice.

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Sean S. Sweeney, CPCU, RPLU, ARe


Sean Sweeney spent 35 years building Philadelphia Insurance Companies into one of the world’s premiere commercial property casualty niche underwriters. He began his career with Phly as an account executive and retired as their CEO. He took the company public with founder James J. Maguire and was involved in the successful merger with Tokio Marine.

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Michael Devine

Director of Benefits Consulting

Michael Devine is Director of Health and Welfare Benefits Consulting within M.F. Irvine’s Employee Benefits Division.  He joined the firm in May of 2009.  Michael has a strong analytical background and is a subject matter expert on Health Care Reform.  He has been an expert panelist on several seminars hosted by M.F. Irvine.  Michael plays a key role providing benefits consulting to key clients and is engaged in program design, financial evaluation, health and wellness compliance, communications, and has first-hand experience working with real time data analytics and utilization measurement delivering cost saving solutions for employers.

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Ryan Rosta

Director of Property & Casualty

Ryan Rosta is a thought leader in the Risk Management Insurance division at M.F. Irvine. He has been with the company since May 2012.

A former employee of The Graham Company, Ryan brings his strong analytical background and technical expertise to every client that he works with. Consulting on large, complex risk across a wide breadth of industries is his specialty combining exposure analysis with appropriate coverage design.

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