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10. (Tie) San Jose, Calif.

San Jose, Calif.

RIAs in 2011: 5
AUM in 2011: $128 million

RIAs in 2010: 1
AUM in 2010: $130 million

One of the fastest growing major cities in America and the 10th largest in the nation, San Jose is the capital of Silicon Valley, where millionaires are minted on a regular basis. Cisco Systems, among others, is headquartered there. The city’s housing market was one of the hottest during the boom and is currently among the most pricey.

Photo: Bernd Geh | Photographer's Choice | Getty Images