Thomas Siebel (born 1953) is the founder of Siebel Systems (in 1993; IPO 1996). He struggled through the technological downturn of the late 1990s, but regained his footing in the rebound. He spent $70 million in November 2003 to buy UpShot Corp. to run sales management software for client companies over the internet.

See also

• List of billionaires

External links

• Forbes.com: Forbes World's Richest People