Renata C. Chorzempa

Wildman, Harrold, Allen & Dixon LLP provides legal services. The firm serves national and international-based businesses, government entities and individuals in a wide range of practice areas. It specializes in litigation and litigation related counseling but also provides expertise in intellectual property, labor, real estate and government affairs. The company was founded in 1967 by Max Wildman, Bernard Harrold, Thomas D. Allen, and Stewart S. Dixon and is headquartered in Chicago, IL.

American Medical Association engages in promoting the art and science of medicine and the betterment of public health. It offers services to physicians, residents, medical students, and patients. The company was founded by Nathan Smith Davis in 1847 and is headquartered in Chicago, IL.

The Chamberlain Group, Inc. specializes in door operators, access control products and gate operator. Its products include garage door openers, smartphone control products, auto and garage tools and door accessories. Its brands include Liftmaster, Chamberlain, MyQ, Tend, and Merlin. The company was founded on May 9, 1986 and is headquartered in Oak Brook, IL.

Sachnoff & Weaver Ltd. provided legal services. The company was headquartered in Chicago, IL.