In operation for more than 25 years, Norshield Security Products offers attack protection systems. The company provides steel and aluminum blast-, bullet- and attack-resistant doors, windows and guard enclosures. It offers fencing and vehicle barrier systems to protect against vehicle intrusion at secure facilities. Norshield Security Products also provides detailed specifications and engineering drawings. The company offers services for architects and contractors, as well as historic structures, existing buildings and new construction projects. It is a part of CompuDyne Corporation, which was founded in 1952 and is one of the leading manufacturers and integrators of physical and electronic security products and services in the United States. CompuDyne Corporation employs over 900 people.