Thomas Siebel: Email & Phone Number

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Chief Executive Officer and Chairman at C3 AI|Redwood City, California, United States

Position:

Chief Executive Officer and Chairman at C3 AI

Location:

Redwood City, California, United States

View Thomas Siebel's Email

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Last updated: 2026-05-28

Updated: 2026-05-28

Found email addresses for Thomas Siebel:

Business emails:

t***********l@c3iot.com,

t*****l@c3.ai,

t*****l@c3energy.com

Personal emails:

r**********l@gmail.com,

d******l@yahoo.com,

s*********y@address.com

Found phone for Thomas Siebel:

+1-***-***-2141

A different Thomas Siebel?

Work Experience 42 years

Chief Executive Officer and Chairman at C3 AI

May 2026 - Current

Chairman at First Virtual Group

Jan 1996 - Current

Executive Chairman at C3 AI

Sep 2025 - May 2026

Chairman and Chief Executive Officer at C3 AI

Jul 2011 - Sep 2025

Chairman and Chief Executive Officer at Oracle

Jul 1993 - Jan 2006

Chief Executive Officer at Gain Technology

Jan 1990 - Dec 1992

Senior Vice President at Oracle

Jan 1984 - Jan 1990

Thomas Siebel started working in 1984, then the employee has changed 4 companies and 5 jobs. On average, Thomas Siebel works for one company for 9 years 7 months.

Their professional focus is Acquisition Integration, Agile Methodologies, and Analytics across 3 core areas.

Education

Masters of Science, MBA, Ph.D (Honorary) in Engineering at University of Illinois at Urbana-Champaign

Bachelor of Arts at University of Illinois at Urbana-Champaign

Thomas Siebel Namesakes

Name

Company

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Thomas Siebel

C3 AI

Chief Executive Officer and Chairman

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