ThyssenKrupp AG (Germany)
Otis Elevator Company (U.S.)
Schindler Group (Switzerland)
KONE Corporation (Finland)
Johnson Controls Inc. (U.S.)
Motion Control Engineering (U.S.)
Mitsubishi Electric (Japan)
Hyundai Elevator (South Korea)
Hitachi (Japan)
Fujitec (Japan) and Hyundai Elevator Co. Ltd (Iran)