BillionaireNet
Stone
William Stone
Rank #1034
UNITED STATESTechnologySoftware

William Stone

Net Worth
$3.865B
+0.86% (24h)
William (Bill) Charles Stone, born in 1955, is a prominent figure in the technology sector, best known as the founder, chairman, and CEO of SS&C Technologies (NASDAQ: SSNC). With a current net worth of $3.8 billion, Stone's wealth stems from his pioneering work in financial software and services. His career began at KPMG before he founded SS&C Technologies in 1986, transforming a startup into a global leader. Stone is known for his strategic vision and has guided SS&C through significant milestones, including two public offerings, and continues to lead the company as of December 2025. Beyond his business acumen, Stone is also recognized for his commitment to philanthropy, particularly in his hometown of Evansville, Indiana.

The Full Dossier

Early Life

William “Bill” Stone was born and raised in Evansville, Indiana. He graduated from Reitz Memorial High School and later attended Marquette University in Milwaukee, Wisconsin, where he earned a Bachelor of Business Administration in 1977. His early life in Evansville instilled in him a strong work ethic and a passion for entrepreneurship.

Rise to Success

Stone began his career at KPMG, a financial services consultancy and accounting firm, where he eventually became a director. In 1986, at the age of 30, he founded SS&C Technologies in Hartford, Connecticut, with approximately $20,000 saved from his previous employment. The company started with just four employees, quickly growing to 17 the following year. SS&C went public in 1996, with Stone navigating the initial public offering (IPO). He took the company private in 2005, then public again in 2010. Today, SS&C Technologies has a global presence.

Key Business Strategies

Key to Stone's success has been the strategic growth of SS&C through both organic expansion and acquisitions. The company provides software and services to the financial services and healthcare industries. Under Stone's leadership, SS&C has achieved significant growth. He has been credited with consistently delivering strong financial results.

Philanthropy

Stone and his wife, Mary, have been actively involved in philanthropy, particularly in Evansville. In 2018, they donated $15 million to the Stone Family Center for Health Sciences. In December 2021, they gifted $34.2 million to establish the Mary O'Daniel Stone and Bill Stone Center for Child and Adolescent Psychiatry at the IU School of Medicine-Evansville.

Career Timeline

2019

Evansville Regional Business Hall of Fame

Inducted into the Evansville Regional Business Hall of Fame.

2010

SS&C re-listed

Took SS&C public a second time.

2005

SS&C went private

Took SS&C Technologies private.

1996

SS&C IPO

Guided SS&C through its initial public offering.

1986

Founded SS&C Technologies

Founded SS&C Technologies, a software and services provider for the financial services industry.

1977

Began career at KPMG

Started career at KPMG, a financial services consultancy and accounting firm.

Philanthropic Impact

Healthcare$15M

Stone Family Center for Health Sciences

Donation towards a multi-institutional initiative in downtown Evansville.

Mental Health$34.2M

Mary O'Daniel Stone and Bill Stone Center for Child and Adolescent Psychiatry

Gifted to establish the center at IU School of Medicine-Evansville.

EducationUndisclosed

NJ Stone Baseball Field

Funded the baseball field at his alma mater, Evansville Memorial High School.

Wealth Trajectory