JANICE MCNAIR

$4 BILLION  SELF-MADE SCORE: @ SOURCE: ENERGY, SPORTS AGE: 83 RESIDENCE: HOUSTON

PHILANTHROPY SCORE:

The South Carolina native owns the Houston Texans. Her husband, and college sweetheart whom she married junior year, Bob McNair (d. 2018) initially built a fortune through Cogen Technologies, the power generation company he founded in the early ’80s and sold to Enron for $1.5 billion in 1999.