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Paul Hastings LLP

Work +1 714 668 6200
Fax +1 714 979 1921
Atlanta, Beijing, Brussels, Chicago, Costa Mesa, Frankfurt and 16 more

William Simpson

Work 1(714) 668-6205
Paul Hastings LLP

Work Department

Corporate/ Private Equity


William Simpson is a partner in the Corporate practice of Paul Hastings. He focuses his practice on private equity, mergers and acquisitions and venture capital. He regularly represents owners and management groups in private equity transactions and he currently represents over 30 private equity backed companies and 10 private equity and other investment groups. He has handled approximately 250 mergers and acquisitions, including the sale of Linksys to Cisco and the sale of Pacific Scientific to Danaher. Mr. Simpson serves as chair of the firm's Global Private Equity practice. He has also formerly served as the chair of firm’s Orange County Office and chair of the Business and Corporate Law Section of the Orange County Bar Association.


Mr. Simpson serves on the Board of Directors of South Central Scholars.


University of Virginia School of Law, J.D., 1979 University of Virginia, B.A., 1976 (with high distinction)

United States: M&A/corporate and commercial

Private equity buyouts

Within: Private equity buyouts

Paul Hastings LLP has developed a strong presence in California and Chicago, with the latter office's practice in large part driven by private equity-related business. The firm has yet to build a prominent private equity team in New York, but has a number of New York-based clients such as Cortec Group. The firm typically operates in the middle to upper-middle market and has an especially strong record in healthcare and life sciences. The buyouts team is supported by the firm's broad expertise and resources, including tax and borrower-oriented debt finance expertise. Other key clients include GI Partners, Francisco Partners, HIG Capital and Vector Capital.  The team advised GI Partners on the acquisitions of Consilio from Shamrock Capital Advisors and Advanced Discovery from Trivest. Chicago-based Brian Richards leads the department, which includes Mike Kennedy, Steve Camahort and Dana Kromm in San Francisco, and Brandon Howald and William Simpson in Orange County.

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