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HTG Capital Partners is a Chicago, IL-based company in the Financial Services sector.
samschwartz is a New York, NY-based company in the Financial Services sector.
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.
IRN Payment Systems is a Westbury, NY-based company in the Financial Services sector.