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Founder Profile

William M. Lybrand

Last reviewed: October 2026 · By Swet Parvadiya

Who is William M. Lybrand?

William M. Lybrand is a founder of PricewaterhouseCoopers, which was founded in 1849 with Samuel Lowell Price, William Cooper and Edwin Waterhouse.

Company founded
PricewaterhouseCoopers
Founded
1849
Co-founders
Samuel Lowell Price, William Cooper and Edwin Waterhouse

Background

William M. Lybrand trained as a public accountant at Heins, Lybrand & Co. in Philadelphia before co-founding Lybrand, Ross Bros. & Montgomery in 1898.

Founding Story

William M. Lybrand was an American accountant who, in 1898, formed Lybrand, Ross Bros. & Montgomery with brothers Adam A. Ross Jr. and T. Edward Ross and Robert H. Montgomery; the four had trained together at Heins, Lybrand & Co. in Philadelphia. In 1957 the firm, Cooper Brothers & Co (UK) and McDonald, Currie and Co (Canada) came together as Coopers & Lybrand, which merged with Price Waterhouse in 1998 to create PricewaterhouseCoopers.

William M. Lybrand was born in 1867.

Sources

Content is for informational purposes only. Not financial advice. Data sourced from SEC filings, annual reports, and public records. See our full disclaimer and methodology.