ABB is a Swiss-Swedish multinational corporation headquartered in Zurich, Switzerland, operating mainly in robotics, power, heavy electrical equipment and automation technology areas.
Siemens AG is a German multinational conglomerate company headquartered in Munich and the largest industrial manufacturing company in Europe with branch offices abroad.
Rockwell Automation, Inc., is an American provider of industrial automation and information technology. Brands include Allen-Bradley and Rockwell Software.
Schneider Electric SE is a French multinational corporation headquartered in Rueil-Malmaison, France. It is also based at the World Trade Center of Grenoble.
