John D'Elia

Greenwood Industries, Inc. sells and installs a range of architectural sheet metal and roofing products to clients that range from homeowners to the federal government. It offers shingles, slate, cedar, clay tile, and metal roofing systems, as well as flat roof materials. The firm serves private institutions and national corporations, churches and synagogues, public agencies such as public schools, universities, municipalities, and transportation authorities. The company was founded by David S. Klein in 1992 and is headquartered in Worcester, MA.