#1078

Thomas Siebel

United States 73 years old Self-Made

Overview

Source of Wealth: Business software
Industry: Technology
Residence: Woodside, California
Education: University of Illinois, Urbana-Champaign (Bachelor of Arts/Science)
University of Illinois, Urbana-Champaign (Master of Business Administration)
University of Illinois, Urbana-Champaign (Master of Science)
Marital Status: Married
Children: 4

Assets

C3.ai

6,167,000 shares @ -

-

AI-US
C3.ai

7,035,712 shares @ -

-

AI-US
C3.ai

319,000 shares @ -

-

AI-US
C3.ai

0 shares @ -

-

AI-US
C3.ai

377,000 shares @ -

-

AI-US
C3.ai

3,000,000 shares @ -

-

AI-US
C3.ai

30,000 shares @ -

-

AI-US
C3.ai

3,000,000 shares @ -

-

AI-US
C3.ai

5,428,000 shares @ -

-

AI-US

Biography

Tom Siebel built software firm Siebel Systems and sold it to Oracle in 2006 for $5.8 billion in cash and stock.

A former salesman at Oracle, he left in 1990 to launch Siebel Systems.

In 2009, he created C3.ai, an enterprise AI firm he took public in 2020 at a near $10 billion valuation.

C3.ai started as a clean energy firm. It was briefly named C3IoT in 2016 to chase the internet of things market.

He has given more than $150 million to his alma mater, U. of Illinois Urbana-Champaign, including a 2024 gift to build the Siebel School of Computing and Data Science.

About

Siebel was attacked by an elephant on a 2009 safari trip in Serengeti; he barely escaped death and underwent 19 reconstructive surgeries.

Siebel owns a 90,000-acre ranch in Wolf Creek, Montana where he raises over 1,000 cattle and produces 500,000 pounds of beef annually.