Carl S. Turza

Sigma-Aldrich Corp. operates as a life science and technology material company. It develops, manufactures, purchases and distributes a broad range of biochemical and organic chemicals. Its services include basic research, product and process development, manufacturing and production, regulatory compliance, and facility operations. was founded in May 1975 and is headquartered in St. Louis, MO.

Part of Guitar Center, Inc., Dennis Bamber, Inc. is a company that offers a wide selection of instruments and accessories for the music industry. The company is based in South Bend, IN. The company provides instruments for classrooms, kids, and special interests, as well as stands, furniture, and more. Dennis Bamber was acquired by Guitar Center, Inc. on February 09, 2007 for $24.70 million.

The Woodwind & Brasswind was founded in 1978 by a music instructor looking to supplement his teaching income by selling musical instruments and accessories at fair prices. More than 30 years later, they are still committed to offering the right product at the right price, backed by their expert advice and customer service. It is headquartered in South Bend, IN.