Drake H. Erbe

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

Robert W. Baird & Co., Inc. operates as a wealth management, capital markets, private equity and asset management firm. It offers equity research, corporate restructuring, mergers and acquisitions, public financing and fixed income services. The firm serves individual, corporate, institutional and municipal clients. The company was founded by Robert Wilson Baird in 1919 and is headquartered in Milwaukee, WI.

Katten Muchin Rosenman LLP provides legal services. The firm specializes in corporate, financial services, litigation, real estate, commercial finance, intellectual property, trusts and estates, antitrust, bankruptcy, international trade, employee benefits and executive compensation, employment, environmental, public finance and tax. The company was founded in 1974 and is headquartered in Chicago, IL.

Filtration Group Corp. engages in manufacture of air purification and filtration products. It offers GeoPleat, Filtrair, and HEPA filters which are used in hospitals, electronics, nuclear, pharmaceuticals, laboratories, aerospace, food processing, optics, and industrial applications. The company was founded by George C. Nolen in 1942 and is headquartered in Austin, TX.

Money Mailer LLC provides direct mail advertising services for businesses and operates as a local marketing consultant. Its product line includes mail, online, social media, and mobile. The company was founded in 1979 and is headquartered in Cypress, CA.

Merrill Lynch Capital Corp. provides various financing services. The company is headquartered in New York, NY.

Heller Financial, Inc. provided mercantile financing. It was acquired by GE Capital Corp. The company was located in Chicago, IL

Northwestern University is a private institution founded in 1851 to serve the Northwest Territory, an area that now includes the states of Ohio, Indiana, Illinois, Michigan, Wisconsin and parts of Minnesota. Northwestern has three campuses

Concentric, Inc. engages in the development of simulation software for marketing strategy. The company was founded by Greg Silverman and is headquartered in Cambridge, MA.

Clear Edge Filtration, Inc. provides industrial filtration products. It offers comprehensive industrial process filtration solutions meeting industry standards for clean, fresh, breathable air. The firm's products are specifically designed to enable the successful convergence of industry and environment. The company was founded in 1960 and is headquartered in Tulsa, OK.