Daniel P. Barry

Tollgrade Communications, Inc. designs, engineers, markets and supports network test systems. Its broadband products and solutions enable communication service providers to manage their networks efficiently in an age of continually evolving technology, and ongoing pressure to reduce costs. The company was founded in 1986 and is headquartered in Cranberry Township, PA.

Part of STERIS Plc (Ireland), AMSCO International, Inc. makes infection control and decontamination products. The company is based in Pittsburgh, PA. AMSCO International was acquired by STERIS Corp. on May 13, 1996 for $619.50 million.