Honeywell, Yokogawa, Emerson Electric, ABB, Bosch, Omron, Fuji Electric, Hitachi, HIMA, Delta Electronics, Invensys, Siemens, Metso, Allen Bradley, ABB, General Electric, Mitsubishi, Rockwell, B&R, Panasonic, Toshiba, Phoenix Contacts, Fatek, Eaton etc.