Frank S. Ptak

Union Tank Car Co. provides railroad tank and covered hopper cars to companies for the shipment of their products on lease basis. It includes corn syrup, plastic pellets and resins, liquefied petroleum gas, various kinds of oils and acids, fertilizers, asphalt and sulfur. The company was founded September 23, 1980 and is headquartered in Chicago, IL.

GGP, Inc. is a holding company. It operates, manages, develops, and acquires retail and other rental properties in regional malls. Its portfolio of regional malls represents a collection of retail properties that are targeted to a range of market sizes and consumer tastes. The company was founded by Matthew Bucksbaum and Martin Bucksbaum in 1954 and is headquartered in Chicago, IL.

Part of Illinois Tool Works Inc., I.T.W., Inc. is an American company that manufactures industrial machinery. The company is based in IL.

Madison Capital Partners Corp. (Madison Capital Partners) is an Independent Private Equity firm founded in 1994 by Larry W. Gies. The firm is headquartered in Chicago.

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

Junior Achievement of Chicago engages in the provision of educational services. Its programs are funded by businesses and individuals and are designed to be taught in the classroom by business, parent, and community volunteers. The company was founded in 1940 and is headquartered in Chicago, IL.