Terrence Duffy

Chicago Mercantile Exchange Inc. operated a stock exchange. The company was founded on November 13, 2000 and was headquartered in Chicago, IL.

The New York Mercantile Exchange, Inc. provides markets for the trading and clearing of crude and heating oil, gasoline, natural gas, and electricity. The company is headquartered in New York, NY.

Mayo Clinic provided medical care. The firm offered healthy living program, mayo clinic membership and health letter, medical products, population health and wellness programs, health plan administration, medical laboratory services and continuing education for medical professionals. The company was founded by William J. Mayo in 1919 and was headquartered in Rochester, MN.

World Business Chicago provides economic data and statistical assistance services. The company was founded in 1999 and is headquartered in Chicago, IL.

The Executives Club of Chicago operates as a premier membership organization and business forum. The non-profit company is based in Chicago, IL.

The Economic Club of Chicago engages in fostering connections among leaders to encourage dialogue on important economic and social issues. It also cultivates the next generation of civic leadership. The company was founded by Lucius Teter in 1927 and is headquartered in Chicago, IL.

The Chicago Council on Global Affairs is a non-profit organization provides insight and solutions to global issues. It offers independent research, surveys, and platform for the public. The company was founded on February 20, 1922 and is headquartered in Chicago, IL.