David Duffield
Cofounder, Workday
$12.36B
$140.4M (1.1%)
as of 12/05/25
About David Duffield
David Duffield cofounded not just one, but two successful enterprise software companies after age 40: PeopleSoft and Workday.
He resigned as chairman of Workday in 2021; he cofounded the HR and finance software firm in 2005 and took it public in 2012.
Duffield cofounded PeopleSoft at age 47 in 1987 and sold it to Oracle for $10.7 billion in cash in 2005.
He founded his sixth enterprise software company, Ridgeline, in 2017, and is chairman of the cloud software firm for investment managers.
He has spent more than $900 million supporting animal welfare, education and other causes, mostly via his family foundation and Maddie's Fund.
Personal stats
Citizenship
United States of AmericaSource of wealth
Business softwareResidence
Incline Village, NevadaMarital status
MarriedBirth date
09/21/40 (age 85)Number of children
10Education
Bachelor of Engineering, Cornell University; Master of Business Administration, Samuel Curtis Johnson Graduate School of ManagementSelf-made
self-madeDavid Duffield’s fortune is worth
206K
troy ounces of gold
190K
median U.S. household
124K
median U.S. income
0.247%
U.S. credit card volume
0.049%
GDP of the United States
0.036%
United States debt
Net worth history
Annual ranking
Related people
Did you know?
Duffield says he plans to leave the bulk of his fortune to Maddie's Fund--named after his beloved schnauzer--and other charitable causes, not to his 10 children.
Net worth over time
Real-time ranking
Financial assets
NASDAQ | WDAY-US
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