Headquartered in Buffalo Grove, Ill., Siemens Building Technologies is one of the world s leading providers of building controls, fire safety, and energy, environmental and security solutions. Siemens Building Technologies is the North American affiliate of Zurich-based Siemens Building Technologies AG, the leading single-source provider of cost effective facility performance solutions for the comfort, life safety, security, energy efficiency and operation of some of the most technically advanced buildings in the world. In North America, Siemens Building Technologies employs more than 8,000 professionals and provides local service from over 400 locations. Siemens Building Technologies specializes in offering system and services for building and energy management. It provides fire safety and building automation systems to customers worldwide. The company also specializes in the development, manufacturing and distribution of components for heating, ventilating and air conditioning systems. Additionally, it provides security system and services for intrusion prevention, access control, video surveillance and danger management.