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Group One Trading, L.P. (www.group1.com) is one of the largest proprietary options trading firms in the country, with a presence on the exchange floors in San Francisco, Chicago, New York and Philadelphia.
Fort Dearborn Partners is a Chicago, IL-based company in the Financial Services sector.
Pappajohn Capital Resources is a Des Moines, IA-based company in the Financial Services sector.
Clearstone Venture Partners is a Santa Monica, CA-based company in the Financial Services sector.
Platform Partners was founded in 2006 with the goal of creating a leading regional investment company whose objective and investment style was differentiated from most private equity firms.