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William G. Parrett

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Adapted from the English Wikipedia article William G. Parrett, available under CC BY-SA 4.0Updated 11 August 2025
William G. Parrett
Born (1945-06-04) June 4, 1945 (age 81)
Occupation(s)Business executive, corporate director
Years active1995–present
Known forCEO of Deloitte Touche Tohmatsu (2003–2007), Board member of UBS AG, Eastman Kodak Company, Blackstone Group LP, Thermo Fisher Scientific Inc.

William G. Parrett (born June 4, 1945) is a seasoned American executive with a broad background in managing organizations across public, private, governmental, and state-owned sectors worldwide. He was appointed to the board of directors of UBS AG in October 2008 and later became a member of the UBS Group AG Board in November 2014. Parrett resigned from the board in May 2018 to dedicate his efforts fully to his position as President of UBS Americas Holding LLC.

Education

In 1967, Parrett obtained a Bachelor of Business Administration degree in accounting from St. Francis College, New York, and subsequently earned certification as a public accountant. His alma mater honored him with an honorary Doctor of Humane Letters degree in April 2007.

Career

From April 2005 until March 2010, Parrett held the position of chairman for the United States Council for International Business. Prior to this, he served as CEO of Deloitte Touche Tohmatsu between 2003 and his retirement in 2007. He established Deloitte's Global Financial Services Industry Group in the United States in 1995 and was a member of Deloitte's Global Executive Committee from 1999 to 2007, during which time he also chaired the Global Financial Services Industry Group.

Within UBS, Parrett has led the Audit Committee since 2009, joined the Corporate Culture and Responsibility Committee in 2012, and became part of the Compensation Committee in 2015.

His previous appointments include serving on the board of the International Chamber of Commerce, acting as chairman for United Way Worldwide, and holding a trustee role at the Catholic University of America. Parrett has provided advisory services to prominent Deloitte clients such as General Motors, Merrill Lynch, Abbott Laboratories, Metropolitan Life Insurance, Royal Bank of Canada, BASF, Bridgestone, Charles Schwab, Marsh & McLennan, and Procter & Gamble.

Other activities and functions

As of 2016, Parrett disclosed ownership interests valued near US$4 million through his directorships at Kodak, Blackstone Group, and Thermo Fisher Scientific.

Family

Spouse: Diane Parrett

Children: Debra Volpe, Suzie Vallerie, Courtney Balsam, Christie Parrett, Steven Parrett, Gregory Parrett

Grandchildren include Brooke Volpe, Paige Volpe, Steven Parrett Jr., Ellie Volpe, Lila Volpe, Sarah Parrett, Ray Vallerie, Cynthia Parrett, Luke Balsam, Dominic Parrett, and Connor Balsam

Further reading

External links