William J. Nissen - Sidley Austin LLP
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William J. Nissen

Listed in Best Lawyers since 2007
Phone: 312-853-7742

WILLIAM J. NISSEN is a partner of Sidley Austin LLP, in Chicago, Illinois, and has practiced with the firm since 1976. From 1982-1984 he was General Counsel of Heinold Commodities, Inc., a Chicago-based futures commission merchant. His law practice includes representing clients, including futures commission merchants and introducing brokers, institutional users of the futures markets, fund managers and exchange members in litigation and regulatory matters involving the futures and OTC derivatives markets. He has been named the Best Lawyers' 2013 Chicago, Derivatives and Futures law "Lawyer of the Year." Best Lawyers designates "Lawyers of the Year" in high-profile legal practice areas in large legal communities.

Northwestern UniversityBA 1969Harvard Law SchoolJ.D. 1976

Client Comments

"Bill is a great lawyer. Behind a fairly unassuming demeanor, he is simply brilliant and a pleasure to work with. His knowledge of the futures and derivatives markets is unmatched, as is the breadth of his expertise on the commercial side of the business. He is highly responsive, always helpful, has great instincts, and does terrific work both providing regulatory advice and providing representation in connection with regulatory inquiries and investigations. "

Office Location

One South Dearborn
Chicago, IL 60603
United States

Lawyer of the Year Awards

2013 Lawyer of the Year in Derivatives and Futures Law of the Chicago Metro Area
William J. Nissen has earned a Lawyer of the Year award for 2013!

Practice Areas

Derivatives and Futures Law

Other Information

Gender: Male