Judy Faulkner

Founder and CEO, Epic Systems

Rank on list: 74

Net worth: $5.5 billion

Source of wealth: Health, IT

Citizenship: U.S.

Faulkner founded America’s leading medical-record software provider, Epic, in a Wisconsin basement in 1979. Epic supports over 250 million patients’ medical records and is used by top medical centers such as Johns Hopkins and Mayo Clinic. A computer programmer, Faulkner signed the Giving Pledge in 2015 and has agreed to eventually gift 99% of her stake in Epic to a private charitable foundation.