- CEO
- William Robert Berkley
- Full Time Employees
- 8,329
- Sector
- Financial Services
- Industry
- Insurance - Property & Casualty
- Address
- 475 Steamboat Road Greenwich CT United States of America 6830
- IPO Date
- Apr 3, 2018
- Business
- W. R. Berkley Corporation is an insurance holding company primarily engaged in property and casualty insurance and reinsurance worldwide. The company operates through over 55 specialized insurance businesses that underwrite commercial lines products including excess casualty, construction, professional and management liability, specialized risk solutions for infrastructure, energy, industrial and commercial sectors; high net-worth personal lines; and reinsurance across property casualty segments, serving niche markets requiring industry-specific expertise via independent agents and brokers. Founded in 1967 and headquartered in Greenwich, Connecticut, it conducts operations in the United States, United Kingdom, Continental Europe, South America, Canada, Mexico, Scandinavia, Asia-Pacific, Australia and South Africa, with more than 190 office locations and member insurance companies rated A+ (Superior) by A.M. Best and A+ (Strong) by Standard & Poor's. In 2025, Mitsui Sumitomo Insurance Co., Ltd., a subsidiary of MS&AD Insurance Group Holdings, announces plans to acquire a 15% stake in the company for approximately $3.8-$4 billion through open market or private block transactions under an Investment and Voting Agreement with the founding family, with an expected board nominee by March 2026 pending regulatory approvals and minimum share thresholds; this strategic investment validates the company's growth in U.S. specialty insurance and supports international expansion opportunities.