The entry level to Virginia Business 'Virginia 100' 2009 list was a cool $27 million. On top of the list are three descendants of the Mars family (M&M candies.. anyone). No surprise there, they own the largest privately-held company in the U.S. if not in the world. The estimated networth for "each" sibling is at $9 billion, who according to Forbes list of billionaires, down some $3 billion and change from the year before. Hmm, wonder why?