William Stone

William Stone (#1412)

Global Rank #1412

Country Rank #502

Country United States

William Stone is listed among the world billionaires tracked by Iconic Billionaires.

$ 3 B
Software
United States
M
71 Years

Snapshot

Quick Facts

Global Rank #1,412

Country Rank #502

Net Worth $3.0B

Previous Worth $3.0B

Worth Change +$0.0B

Country United States

Industry Software

Age 71 Years

Gender M

Worth As Of May 4, 2026

Residence East Lyme, Connecticut

Citizenship United States

World Billionaires List United States Billionaires Software

Profile Data

Personal Stats

Age 71

Source Of Wealth Software, Self Made

Self Made Score 8

Philanthropy Score 2

Residence East Lyme, Connecticut

Citizenship United States

Marital Status Married

Children 3

Education Bachelor of Arts/Science, Marquette University

Net Worth Change +$0.0B +0.0% from previous worth

Previous Net Worth $3.0B

Current Net Worth $3.0B

Worth as of May 4, 2026

About Me

Bill Stone started financial-software firm SS&C Technologies in 1986 with the $20,000 he had saved from his days as a KPMG executive. His product became popular among asset managers, bankers and insurers who wanted to electronically manage their books. He guided the firm to an IPO in 1996, but the dot-com crash nearly crippled the company in 2001. Stone refocused and added services such as data centers, then took the company private in 2005. In 2011, a resurgent SS&C went public again; Stone remains the firm's largest individual shareholder, with a 15% stake.

Achievements

Forbes List Highlights

A snapshot of the list placements and rankings connected to William Stone.

#1251

Billionaires (2026)

#382

Forbes 400 (2025)

Insights

Did You Know?

Between June 1999 and December 2001, SS&C went from 610 to 250 employees, as the markets crashed.

The Evansville, Indiana native was the captain of his high school football team.

Wealth Growth

Net Worth Growth Over Time

Tracking William Stone's net worth journey over the years, highlighting key growth phases and financial milestones.

Worth Trend Net Worth Growth

Period Change Worth Movement

Current Net Worth: $3.0B (May 4, 2026)