STEPHEN BISCIOTTI

$4.5 BILLION  SELF-MADE SCORE: * SOURCE: STAFFING, BALTIMORE RAVENS AGE: 59 RESIDENCE: MILLERSVILLE, MD

PHILANTHROPY SCORE:

Bisciotti worked in the staffing industry for a year right out of college before starting Allegis Group, then called Aerotek, in 1983 with his cousin Jim Davis (No. 85). What started in a basement has evolved into the largest staffing firm in the United States, with 19,000 employees and $13.4 billion in revenue in 2018. Bisciotti also owns the NFL’s Baltimore Ravens, worth $2.75 billion.