John M. Naples

Trex Medical Corp designs, manufactures, and markets mammography equipment. The company is headquartered in Waltham, MA.

Advanced Instruments, Inc. designs, manufactures and markets laboratory test equipment and related consumables for use in clinical, food and dairy, microbiology, pharmaceutical and biotech markets. The company was founded in 1955 and is headquartered in Norwood, MA.

Arthur Andersen LLP used to provide accounting services. It was also into consulting services for clients that operate businesses throughout the United States and around the world. Arthur Andersen was founded in 1913 and was headquartered in Chicago, IL.

Part of Thermo Fisher Scientific, Inc., XRE Corp is a company that makes analytical and environmental monitoring instruments. The company is based in Waltham, MA. XRE was acquired by Trex Medical Systems Corp., part of Thermo Fisher Scientific, Inc. from November 29, 2000 on May 30, 1996 for $17 million.

PLC Medical Systems, Inc. provides medical devices. It offers technologies for cardiac and vascular markets. The company was founded on August 23, 1982 and is headquartered in Milford, MA.