W.R. Berkley is an insurance holding company with a host of subsidiaries that primarily underwrite commercial casualty insurance. The firm specializes in niche products that include various excess and surplus lines, workers' compensation insurance, self-insurance consulting, reinsurance, and regional commercial lines for small and midsize businesses.

$27.6B

Market Cap • 5/8/2025

1970

(55 years)

Founded

1984

(41 years ago)

IPO

NYSE

Listing Exchange

Flag of US

Greenwich

Headquarters • Connecticut