9. Richard Fairbank Net worth: $1.1 billion  Wealth: banking, Self Made

8. Michael Saylor Net worth: $1.1 billion Wealth: cryptocurrency, Self Made

7. George Pedersen Net worth: $1.3 billion  Wealth: defense contractor, Self Made

6. Steve Case Net worth: $1.4 billion  Wealth: AOL, Self Made

5. Winifred J. Marquart Net worth: $3.4 billion  Wealth: cleaning products

4. William Conway Jr Net worth: $3.6 billion  Wealth: private equity, Self Made

3. Daniel D'Aniello Net worth: $4.1 billion  Wealth: private equity, Self Made

2. Pamela Mars Net worth: $8.2 billion  Wealth: candy, pet food

1. Jacqueline Mars Net worth: $32.8 billion  Wealth: candy, pet food