Harmon, formerly known as Harmon Glass, is one of the leading glass and glazing service contractors in the United States. The company offers a range of maintenance, installation and renovation services. It serves clients in the retail, medical, education, airport and hospitality markets, as well as government agencies. The company has been in operation since 1949. Harmon offers a variety of storefronts and aluminum, glass and revolving doors. It also provides glass tabletops, shelves and handrails. Harmon is a part of Apogee Enterprises, which is a publicly held, international corporation. Apogee Enterprises designs and develops a selection of glass products and systems for clients in the architectural and picture framing industries.