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Rank #688
UNITED STATES•Finance & Investments•Insurance

William Berkley & family

Net Worth
$5.952B
+1.23% (24h)
William R. Berkley is the founder and Executive Chairman of W. R. Berkley Corporation, a Fortune 500 insurance holding company. Born in 1946, Berkley's source of wealth stems from his successful career in the insurance industry. His career began in 1967 when he founded the company with a modest $2,500. Berkley holds an MBA from Harvard Business School. He transitioned from CEO to Executive Chairman in 2015. As of March 2026, he has an estimated net worth of $6.3 billion. Berkley's achievements include building a global insurance enterprise operating in over 60 countries and earning revenues of $14.7 billion in 2025.

How to read William Berkley & family's profile

Public net-worth figures are estimates. They combine observable inputs—typically listed equity, disclosed transactions, and market prices—with editorial judgment where filings are incomplete (for example, private holdings, debt, or cross-holdings). For William Berkley & family, we anchor the narrative to Insurance and Insurance, then update the headline number as markets move. The chart on this page is meant to show trajectory, not a certified balance sheet.

When you see $5.952B alongside global rank #688, interpret it as our best synthesis of widely cited ownership and price signals—not a claim about cash on hand. Estimates can diverge from other publishers because of different treatment of options, trusts, charitable vehicles, or illiquid assets. We document the general approach in methodology and welcome corrections via corrections.

Country (UNITED STATES) and career milestones on this page are curated for reader context; they should be verified against primary sources when used for research. Editorial metadata for this profile is refreshed on a rolling basis, with deeper audits at least annually (last noted cycle: 2026).

Looking for depth? When available, the dossier and timeline sections below add long-form context beyond the headline number—prioritize those modules when evaluating claims about strategy, controversies, or philanthropic commitments.

The Full Dossier

Early Life

William Robert Berkley was born in 1946 in North Jersey. His father passed away when William was 11 years old. He began investing in the stock market at age 12, using earnings from lawn mowing. Berkley received a scholarship to New York University (NYU) where he earned his bachelor's degree, followed by an MBA from Harvard Business School in 1968.

Rise to Success

In 1967, Berkley founded W. R. Berkley Corporation with $2,500. He was the CEO until 2015, when he became the Executive Chairman. The company went public in 1973, with Berkley owning 23.8% of the shares. W. R. Berkley Corporation has grown into a major commercial lines property and casualty insurance holding company with operations worldwide.

Key Business Strategies

Berkley's company focused on a decentralized underwriting model, putting decision-making close to the risks. This local focus propelled growth into specialty commercial lines and global operations. The company has consistently aimed to maintain a combined ratio below 90%.

Philanthropy

Berkley and his wife, Marjorie, have donated to New York University, including a $50 million donation to the Leonard N. Stern School of Business. He is also involved with the Berkley Family Foundation, supporting education, healthcare, and environmental causes. He established the Berkley Center for Religion, Peace and World Affairs at Georgetown University.

Career Timeline

2015

Transitioned to Executive Chairman

Stepped down as CEO, becoming Executive Chairman of W. R. Berkley Corporation.

2014

Chairman of the Board of Trustees, New York University

Served as chairman of the Board of Trustees at his alma mater, New York University.

1973

W. R. Berkley Corporation went public

The company went public, with William Berkley owning 23.8% of the company.

1967

Founded W. R. Berkley Corporation

Founded W. R. Berkley Corporation with $2,500 in start-up capital, which later became a Fortune 500 company.

Philanthropic Impact

Education$50M

Berkley Achievement Scholars Program

Donated to the New York University's Leonard N. Stern School of Business to fund the program, which pays tuition for 60 students with financial need.

Education/Interfaith DialogueMulti-million dollar gift

Berkley Center for Religion, Peace and World Affairs

Established at Georgetown University.

Key Business Ventures & Holdings

CompanyStakeValue
The First Marblehead Corp—$0.002M
W. R. Berkley Corporation20.80%—

Net Worth History

In-Depth Analysis

Early Life

William Robert Berkley was born in 1946 in North Jersey. His father passed away when William was 11 years old. He began investing in the stock market at age 12, using earnings from lawn mowing. Berkley received a scholarship to New York University (NYU) where he earned his bachelor's degree, followed by an MBA from Harvard Business School in 1968.

Rise to Success

In 1967, Berkley founded W. R. Berkley Corporation with $2,500. He was the CEO until 2015, when he became the Executive Chairman. The company went public in 1973, with Berkley owning 23.8% of the shares. W. R. Berkley Corporation has grown into a major commercial lines property and casualty insurance holding company with operations worldwide.

Key Business Strategies

Berkley's company focused on a decentralized underwriting model, putting decision-making close to the risks. This local focus propelled growth into specialty commercial lines and global operations. The company has consistently aimed to maintain a combined ratio below 90%.

Philanthropy

Berkley and his wife, Marjorie, have donated to New York University, including a $50 million donation to the Leonard N. Stern School of Business. He is also involved with the Berkley Family Foundation, supporting education, healthcare, and environmental causes. He established the Berkley Center for Religion, Peace and World Affairs at Georgetown University.

Data Sources & Methodology

Figures for William Berkley & family are synthesized from the sources below and cross-checked against our net worth methodology. Estimates may lag market moves; see corrections to report discrepancies.

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