Andreas Schierenbeck

TK Elevator GmbH engages in the manufacture, sale, and distribution of passenger transportation systems. Its products include passenger and freight elevators, escalators, moving walks, passenger boarding bridges, as well as stair and platform lifts. It also provides maintenance, real-time troubleshooting, and remote monitoring services. The company was founded in 1865 and is headquartered in Essen, Germany.

Alliance to Save Energy provides power saving solutions. It operates as a coalition consisting largely of industrial, technological, and energy corporations. The company was founded by Charles H. Percy and Hubert Humphrey in 1977 and is headquartered in Washington, DC.

Siemens Schweiz AG manufactures and markets automation, safety and security systems. It provides products and services for climate control, building & energy management, fire safety, security, lighting and facility management. The company makes HVAC control and automation products, such as actuators, thermostats, sensors and valves. Other products include fire safety (detection and evacuation systems) and security access controls (alarms, badge management and video surveillance). It also provides facility management services. The company distributes its products primarily through independent contractors and wholesalers. The company was founded in 1916 and is headquartered in Zurich, Switzerland.