William R. Berkley, Founder of Insurance Giant W.R. Berkley Corp., Dies at 80

The insurance industry is mourning the loss of one of its most transformative figures. William R. Berkley, who founded W.R. Berkley Corporation in 1967 while completing an MBA at Harvard University with just $2,500 in starting capital, died on June 9, 2026. He was 80 years old. The company he built grew over nearly six decades into a Fortune 500 and S&P 500 commercial property and casualty insurer with more than 60 specialised insurance and reinsurance businesses worldwide, approximately 8,804 employees, and $14.7 billion in revenues in 2025. The firm's market capitalisation stands at approximately $25 billion according to LSEG data.

Berkley stepped down as CEO in October 2015, transitioning to the role of executive chairman, a position from which he continued to shape the company's strategic direction and culture. Under his leadership, W.R. Berkley developed a highly distinctive decentralised model, organising the business around specialised niche markets and entrepreneurial underwriting units rather than pursuing a centralised structure — an approach that continues to differentiate it in the commercial insurance market.

The company released a formal statement describing Berkley's vision, discipline, and commitment to an entrepreneurial culture focused on underwriting excellence and long-term results as having 'shaped the company's success and left an enduring imprint on both the organisation and the insurance industry.' Following the announcement, W. Robert Berkley Jr., who has served as President and CEO since 2015, was appointed Chairman by the board effective immediately. Rob Berkley said his father was not only an extraordinary entrepreneur but also his 'father, best friend, and mentor.' The family's net worth was estimated by Forbes at $5.9 billion.

Beyond business, William Berkley was known for significant philanthropic contributions, particularly in education and healthcare. Industry analysts noted that his death marks the end of a generation of insurance industry founders who built global powerhouses through decades of underwriting discipline and organic growth.