Edgar Coolidge

CalStar Products, Inc. develops and manufactures building products. It offers products that are designed to reduce the energy and carbon dioxide footprint of its clients projects and incorporate recycled materials. The company was founded by Marc U. Porat in 2006 and is headquartered in Racine, WI.

Founded in 1982, William Blair Capital Partners LLC is a private equity firm located in Chicago. The firm is a subsidiary of William Blair & Co. LLC

Kmart Holding Corp. provides mass merchandising services. It serves through its Kmart and Kmart Supercenter retail outlets in Puerto Rico, United States, Virgin Islands & Guam and through its online shopping website. The company was founded in 1899 and is headquartered in Hoffman Estates, IL.

Rush System for Health provides general health care services. It serves through the integration of patient care, education, and research and community partnerships. The company was founded in 1995 and is headquartered in Chicago, IL.

William Blair & Co. LLC (William Blair) is a SEC-registered broker/dealer firm headquartered in Chicago, Illinois. The firm was founded by William McCormick Blair in 1935 and is a subsidiary of WBC Holdings LP. Until 1941, they were known as Blair, Bonner & Co. William Blair provides broking services to individual, institutional and issuing clients.