Thomas Siebel Net Worth (Updated 2025).
Thomas Siebel, a name that has become synonymous with enterprise software, began his career in the early 1980s. After graduating from the University of Illinois at Urbana-Champaign with a degree in Computer Science, Siebel started his professional journey at Oracle Corporation, where he spent over a decade, rising to become the Senior Vice President of Marketing. It was here that he honed his skills in software development and marketing, laying the foundation for his future endeavors.
In 1993, Siebel took a leap of faith and founded Siebel Systems, a company that would revolutionize the way businesses interacted with their customers. The company, headquartered in San Mateo, California, specialized in customer relationship management (CRM) software. Siebel’s innovative approach to CRM, coupled with his business acumen, quickly propelled him and his company into the limelight. By the late 1990s, Siebel Systems was a publicly traded company, and Siebel himself was a household name in the tech industry.
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Thomas Siebel’s Current Net Worth (2025)
As of 2025, Thomas Siebel’s estimated net worth is $1.2 billion, according to Forbes. This significant figure reflects his successful career in the tech industry and his entrepreneurial ventures.
Career
Thomas Siebel is a prominent figure in the tech industry, known for founding C3.ai, a leading enterprise AI software provider, in 2009. Prior to this, he served as the CEO of Siebel Systems, a CRM software company he founded in 1993. Siebel Systems was later acquired by Oracle in 2006 for $5.85 billion.
Other Ventures
In addition to C3.ai, Siebel has invested in various other ventures, including SpaceX and the Siebel Scholars program, which provides graduate students in science and engineering with significant financial support.
Assets
Siebel’s assets include a significant stake in C3.ai, as well as real estate holdings in California. He has also been a generous philanthropist, donating to various causes, including education and climate change initiatives.
Annual Income
As the CEO of C3.ai, Siebel’s annual income is substantial. While the exact figure is not publicly disclosed, it’s estimated to be in the tens of millions of dollars, given the company’s success and his significant stake in it.
Frequently Asked Questions about Thomas Siebel
**Frequently Asked Questions: Thomas Siebel Net Worth**
1. What is Thomas Siebel’s net worth?
Thomas Siebel’s net worth is estimated to be around $1.5 billion.
2. How did Thomas Siebel make his fortune?
Thomas Siebel made his fortune as the founder and CEO of C3 AI, a software company that specializes in artificial intelligence. He also previously served as the CEO of Siebel Systems, which he founded in 1993.
3. What is C3 AI?
C3 AI is an enterprise AI software provider for accelerating digital transformation. It was founded by Thomas Siebel in 2009.
4. What happened to Siebel Systems?
Siebel Systems was acquired by Oracle Corporation in 2006 for $5.85 billion.
5. What is Thomas Siebel’s background?
Thomas Siebel graduated from the University of Illinois at Urbana-Champaign with a degree in computer science. He also holds an MBA from Harvard Business School.
6. Is Thomas Siebel married?
Yes, Thomas Siebel is married. He has been married to his wife, Diane, since 1983.
7. Does Thomas Siebel have any children?
Yes, Thomas Siebel has five children with his wife, Diane.
8. What is Thomas Siebel’s philanthropic work like?
Thomas Siebel is known for his philanthropic work. He has donated millions to various causes, including education, healthcare, and environmental conservation. He is also a signatory of The Giving Pledge, committing to donate the majority of his wealth to charitable causes.
9. What are Thomas Siebel’s political leanings?
Thomas Siebel is a registered Democrat and has contributed to Democratic political campaigns.
10. What is Thomas Siebel’s height?
Thomas Siebel is 6 feet 2 inches tall.
