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10. (Tie) Stamford, Conn.

Stamford, Conn.

RIAs in 2011: 5
AUM in 2011: $5.04 billion

RIAs in 2010: 4
AUM in 2010: $1.52 billion

This city of about 123,000 is less than an hour from New York City and thus something of a financial satellite. It is also home to many corporations. Connecticut is the unofficial capital of the hedge fund industry and has one of the highest per-capita incomes in the U.S.

Photo: Wikipedia