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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.
Mezzacappa Management is a New York, NY-based company in the Financial Services sector.
Clearstone Venture Partners is a Santa Monica, CA-based company in the Financial Services sector.
Manchester Companies is a Minneapolis, MN-based company in the Financial Services sector.
Field Street Capital is a New York, NY-based company in the Financial Services sector.