GLASTONBURY, Conn. (April 2, 2026) — Berkley Alliance Managers, a Berkley company specializing in professional liability insurance solutions for design, construction and service professionals has announced the appointment of Diane P. Mika as chief risk management officer.
Mika previously served as senior vice president, risk management officer and department head for Berkley Alliance Managers. She brings more than 30 years of professional liability insurance experience and a distinguished record in risk management and loss prevention education. In her new role, she will lead the client-facing risk management function for Berkley Construction Professional, Berkley Design Professional and Berkley Service Professionals, advancing the organization’s commitment to delivering industry-leading resources and solutions.
“Diane’s deep expertise in professional liability risk management, paired with her leadership in developing innovative learning and loss prevention programs, makes her uniquely qualified to lead the risk management services we provide to clients,” said Stephen L. Porcelli, president of Berkley Alliance Managers. “Her vision, industry insight and commitment to elevating client education will continue to strengthen the value we deliver to construction, design and service professionals.”
Since joining Berkley Alliance Managers in 2014, Mika has played a pivotal role in shaping the organization’s client-facing risk management strategy. She led the development of the award-winning BDP Risk® Learning Management System and built a comprehensive portfolio of resources, including live workshops, on-demand courses and curated learning plans. Her leadership has set a high standard for innovation and excellence in client education and risk mitigation.
Andrew D. Mendelson, FAIA, who previously served as chief risk management officer, will continue with Berkley Alliance Managers as executive vice president, client experience (CX) officer and a member of the executive team until his planned retirement in 2027.
About Berkley Alliance Mangers
Berkley Alliance Managers specializes in professional liability products and services across four key industries: design, construction, miscellaneous services and accounting. The organization is recognized for its innovative approach, deep industry expertise and commitment to excellence. Berkley Alliance Managers is a member of W. R. Berkley Corporation, a Fortune 500 company listed on the New York Stock Exchange and part of the S&P 500. Its insurance company subsidiaries are rated A+ (Superior) by A.M. Best. For more information, visit berkleyalliance.com.
Contact:
Valerie Foster, Chief Marketing Officer
312.705.1135
[email protected]

