- ABB Ltd.
- Honeywell International Corporation
- Siemens AG
- Schneider Electric
- Mitsubishi Motors Corporation
- Rockwell Automation
- Emerson Electric Company
- Metso (Valmet Oyj)
- Omron Corporation
- Novatech Llc (Weir Group)
- Azbil Corporation
- Toshiba International
- Yokogawa Electric Co.