Fast-Growing Companies Call These 10 Cities Home

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Boston, 186 companies

With students contributing an estimated $4.8 billion to the city each year, Boston--and its start-up programs at MIT and Harvard, among others--is a veritable thought incubator. Technology, and consumer service companies such as NextWorth Solutions and DealerRater have a large presence in the city. Mayor Thomas Menino has introduced initiatives for small businesses like Boston Buying Power, which saves small companies over $2 million on energy costs. Boston is also home to a VC firms Greylock Partners and Highland Capital.