9. Virginia: Forrest Mars, Jr.
The grandson of Frank C. Mars, the founder of Mars, Forrest Mars, Jr. has a net worth of about $25.9 billion. Forrest Mars, Jr. along with his siblings, Jacqueline and John, own Mars, which is one of the largest candy maker firms in the world with sales worth $33 billion. Mars Inc. makes all the goodies in its manufacturing plants in the States, which it sells in the Unites States. The privately held firm has also said that it will put another $100 million, in addition to $330 million, towards its Topeka, Kans. chocolate factory, the first new chocolate manufacturing plant in 35 years, which was launched last year.