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William Parrett
Director/Board Member at THOUGHTWORKS HOLDING, INC.
Net worth: 5 M $ as of 29/11/2025
Profile
William G. Parrett (born June 4, 1945) is an American businessman and senior manager who has served public, private, governmental, and state-owned clients worldwide. In October 2008, Parrett was elected to the board of directors of UBS AG and, in November 2014, to the Board of Directors of UBS Group AG. In May 2018, he stepped down from this role and is focussing on the position of President of UBS Americas Holding LLC.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 18/09/2025 | 27,075 ( 0% ) | 5 M $ | 29/11/2025 |
Latest news about William Parrett
William Parrett active positions
| Companies | Position | Start |
|---|---|---|
| BLACKSTONE INC. | Director/Board Member | 08/11/2007 |
| THOUGHTWORKS HOLDING, INC. | Director/Board Member | 31/12/2016 |
| CERNER CORPORATION | Director/Board Member | - |
Committee On Capital Markets Regulation
 Committee On Capital Markets Regulation The Committee On Capital Markets Regulation is a company based in Cambridge, MA. | Corporate Officer/Principal | - |
New York Foundation for Senior Citizens | Director/Board Member | - |
ThoughtWorks, Inc.
 ThoughtWorks, Inc. Information Technology ServicesTechnology Services Operates as a technology consulting company specializes in AI based software engineering, data modernization and digital transformation | Director/Board Member | 06/12/2017 |
The American Institute of Certified Public Accountants
 The American Institute of Certified Public Accountants Miscellaneous Commercial ServicesCommercial Services Association of accountants | Corporate Officer/Principal | - |
Chief Executives For Corporate Purpose, Inc.
 Chief Executives For Corporate Purpose, Inc. Miscellaneous Commercial ServicesCommercial Services Operates as an international forum of business leaders | Corporate Officer/Principal | - |
The Catholic University of America
 The Catholic University of America Other Consumer ServicesConsumer Services Functions as a College/University | Director/Board Member | - |
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Former positions of William Parrett
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Training of William Parrett
Experiences
Positions held
Connections
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 31 |
|---|---|
Cerner Corp.
 Cerner Corp. Develops healthcare information technology systems | |
Eastman Kodak Co.
 Eastman Kodak Co. Manufactures and markets digital printing products, industrial films & chemicals | |
Oracle Corp.
 Oracle Corp. Provides cloud based enterprise applications and infrastructure technologies & license, hardware and IT services | |
iGATE Corp.
 iGATE Corp. Information Technology ServicesTechnology Services Provides outsourced information technology and IT-enabled operations solutions and services | Technology Services |
UBS AG
 UBS AG Investment ManagersFinance Provides financial advice and wealth management services | Finance |
ThoughtWorks, Inc.
ThoughtWorks, Inc. Information Technology ServicesTechnology Services Operates as a technology consulting company specializes in AI based software engineering, data modernization and digital transformation | Technology Services |
UBS Group AG
 UBS Group AG Provides private wealth management, advisory, investment and corporate banking & asset management services | |
Blackstone Corporate Private Equity
 Blackstone Corporate Private Equity Investment ManagersFinance Blackstone Corporate invests in middle market companies located across the globe. The firm targets companies operating across a broad range of sectors and industries. It provides financing for buyout and growth stage capital requirements. | Finance |
Kodak India Pvt Ltd.
 Kodak India Pvt Ltd. Electronics/AppliancesConsumer Durables Distributes and process color films, cameras, printers and solutions | Consumer Durables |
Deloitte & Touche LLP
 Deloitte & Touche LLP Miscellaneous Commercial ServicesCommercial Services Provides auditing, financial advisory and tax consulting services | Commercial Services |
Deloitte LLP (New York)
 Deloitte LLP (New York) Miscellaneous Commercial ServicesCommercial Services Provides audit, consulting, tax and financial advisory services | Commercial Services |
The American Institute of Certified Public Accountants
The American Institute of Certified Public Accountants Miscellaneous Commercial ServicesCommercial Services Association of accountants | Commercial Services |
The Catholic University of America
The Catholic University of America Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
St. Francis College
 St. Francis College Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Thermo Fisher Scientific, Inc.
 Thermo Fisher Scientific, Inc. Medical SpecialtiesHealth Technology Develops, manufactures and markets analytical and environment monitoring instruments | Health Technology |
United States Council for International Business
 United States Council for International Business Investment Trusts/Mutual FundsMiscellaneous The United States Council for International Business (Uscibb), also known as the United States National Committee to the International Chamber of Commerce (Icc), is a premier pro-trade, pro-market liberalization organization founded in 1945. It serves as a contact point for the ICC's dispute resolution services and promotes ICC dispute resolution as an efficient means of settling disputes. USCIB advocates for international regulatory regimes that recognize the role of business in building a prosperous economy and provides trade-related products and services to help businesses save time, money, and gain the necessary knowledge to compete effectively. Through its international affiliations, USCIB works to support corporate views on key international policy issues. The company is based in New York, NY. | Miscellaneous |
The Carnegie Hall Society, Inc.
 The Carnegie Hall Society, Inc. Movies/EntertainmentConsumer Services Promotes musical performances | Consumer Services |
Chief Executives For Corporate Purpose, Inc.
Chief Executives For Corporate Purpose, Inc. Miscellaneous Commercial ServicesCommercial Services Operates as an international forum of business leaders | Commercial Services |
United Way Worldwide
 United Way Worldwide Investment Trusts/Mutual FundsMiscellaneous Operates charitable fundraising organization for health, education and financial stability of communities | Miscellaneous |
International Chamber of Commerce (France)
 International Chamber of Commerce (France) Miscellaneous Commercial ServicesCommercial Services Chamber of Commerce | Commercial Services |
Blackstone, Inc.
 Blackstone, Inc. Investment ManagersFinance Provides investment and fund management services | Finance |
Blackstone Group Management LLC
 Blackstone Group Management LLC Investment ManagersFinance Provides investment advisory services | Finance |
New York Foundation for Senior Citizens | |
US National Financial Services Industry Group | |
Global Financial Services Industry Group
 Global Financial Services Industry Group Provides financial planning services | |
Deloitte Touche Tohmatsu Ltd.
 Deloitte Touche Tohmatsu Ltd. Provides auditing, consulting, financial and risk advisory & tax services | |
Committee On Capital Markets Regulation
Committee On Capital Markets Regulation The Committee On Capital Markets Regulation is a company based in Cambridge, MA. | |
United Way of America Membership Committee | |
UBS Americas Holding LLC
 UBS Americas Holding LLC Operates as a bank holding company whose subsidiaries provides banking services | |
Conduent, Inc.
 Conduent, Inc. Provides business process outsourcing services | |
Thoughtworks Holding, Inc.
 Thoughtworks Holding, Inc. Provides technology consulting services |
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