Billionaire Profile
William Chisholm
Global Rank
#1315

Image: Photo by Ryder. Engraving by Samuel Sartain | Public domain | via Wikimedia Commons

William Chisholm

CEO, Private equity
UNITED STATES
Real-Time Net Worth
$3.179B
Estimated based on Private equity stock value as of March 6, 2026
0% (24h)
Age
57
Source
Private equity
Industry
Finance & Investments
Citizenship
UNITED STATES

Biography

William F. Chisholm Jr. is an American businessman and private equity executive. He is the managing partner and chief investment officer of STG Partners, a Silicon Valley-based private equity firm specializing in technology investments. Chisholm gained prominence in March 2025 when he led the investment group that acquired the Boston Celtics for a record-breaking $6.1 billion, the highest price ever paid for a North American sports franchise. Chisholm, a Massachusetts native, co-founded Symphony Technology Group (STG) in 2002 with Romesh Wadhwani. Before founding STG, Chisholm worked at Bain & Company and PaineWebber. He is a graduate of Dartmouth College and the Wharton School.

Fact Checked
Verified by Editorial Team
Live Data
Updated 3/6/2026

Wealth Over Time

In-Depth Profile

Early Life

William F. Chisholm Jr. was raised in Georgetown, Massachusetts. He attended Brooks School, where he participated in basketball, lacrosse, and soccer. He led the soccer team to its first New England Prep championship and won The Boston Globe's All-Scholastic award for soccer. He graduated from Brooks in 1987. He then attended Dartmouth College, where he played for the soccer team. He graduated from Dartmouth in 1991 and later received an MBA from The Wharton School at the University of Pennsylvania in 1996.

Rise to Success

After graduating from Dartmouth, Chisholm began his career at PaineWebber in New York. From 1996 to 2000, he worked as a management consultant at Bain & Company. In 2002, Chisholm co-founded Symphony Technology Group (STG), a private equity firm focused on technology investments. As of 2023, STG has raised nearly $10 billion across its private equity investment funds and completed more than 100 investments. Chisholm serves as the managing partner and chief investment officer at STG, where he leads the firm's investment activities.

Key Business Strategies

STG's strategy involves acquiring and improving middle-market software companies, often avoiding excessive debt. The firm focuses on operational improvements and sells companies for significant multiples of their original purchase price. Chisholm's leadership has been pivotal in STG's growth, guiding the firm through numerous successful investments and acquisitions.

Philanthropy

Information regarding William Chisholm’s specific philanthropy amounts is unavailable through search results.

Career Milestones

1991

Graduated from Dartmouth College

Received a Bachelor of Arts degree.

1996

Graduated from The Wharton School

Received a Master of Business Administration (MBA).

2000

Partner at The Valent Group

Partner at early-stage venture firm

2002

Co-founded Symphony Technology Group (STG)

Co-founded Symphony Technology Group, a private equity firm focused on technology investments.

2025

Acquired Boston Celtics

Led the investment group to acquire the Boston Celtics for a record $6.1 billion.

Philanthropy & Social Impact

Philanthropy

Information Not Found

Undisclosed

Philanthropic data unavailable in current search results.