11. Stephen Bisciotti (Net Worth: $3.9 billion)
The face of Stephen Bisciotti is familiar among NFL fans. He has been the owner of Baltimore Ravens since he bought the NFL team twelve years ago. But not many people know how he struggled to get to where he is today, where he has made himself worth $3.9 billion.
As his father passed away when he was just a little kid, Stephen’s mom had to raise him along with his two siblings alone. He worked hard to finally get admitted to the Salisbury State University where he got Bachelor degree of Arts/Science.
Then, together with his cousin, he built a high-tech temp agency. It was a small business he ran from a basement office. But they managed to generate $1.5 million of sales revenue on their first year of business.
Years later, that business grew into Allegis Group. Today, it is one of the largest private staffing firms in the world with 15,000 internal employees and over 120,000 contracted workers all around the world.