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BillionaireTracker

Thomas Siebel vs Bob Parsons: who is richer?

Thomas Siebel is richer, with a net worth of $4.57 billion versus Bob Parsons' $4.56 billion — a gap of $8.82 million, or 1.00 times as much (as of November 7, 2026).

Thomas Siebel

Source of wealth: Business software

$4.57B

Made since you opened this page: $0.00

Bob Parsons

Source of wealth: Web hosting

$4.56B

Made since you opened this page: $0.00

Side-by-side

Thomas SiebelBob Parsons
Net worth$4.57B$4.56B
World rank#935#937
Makes per second$9.25$13.04
Makes per day$799,573$1.13M
Today+$7.94M$0
Source of wealthBusiness softwareWeb hosting
Age7375
CountryUnited StatesUnited States

Net worth by year

YearThomas SiebelBob Parsons
2026$3.9B$4.1B
2025$4.1B$3.9B
2024$3.9B$3.6B
2023$3.5B$3.4B
2022$3.5B$3.4B
2021$4.9B$2.2B
2020$3.6B$2.7B
2019$2.9B$2.5B
2018$2.9B$2.7B
2017$2.5B$2.5B
2016$2.2B$2B
2015$2.3B$1.8B

Frequently asked questions

Who is richer, Thomas Siebel or Bob Parsons?

Thomas Siebel is richer, worth $4.57 billion compared with Bob Parsons' $4.56 billion. The difference is $8.82 million.

Who makes more per second, Thomas Siebel or Bob Parsons?

Bob Parsons makes more: about $13.04 per second versus $9.25. Per day that's $1.13M vs $799,573.

How many times richer is Thomas Siebel than Bob Parsons?

Thomas Siebel has about 1.00 times Bob Parsons' net worth.