Andrea Reimann-Ciardelli, New Hampshire
Reimann-Ciardelli's wealth of $720 million is due to her stake in her family's Luxembourg-based firm, JAB. It owns stakes in dozens of other international brands, including Reckitt Benckiser and the beauty company Coty.
John Overdeck, New Jersey
Overdeck's $6.1 billion is thanks to the hedge fund industry. He is the co-founder of Two Sigma Investments, which manages $57 billion in assets. He also spent two years working for Amazon before starting his own firm.
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