- Endress+Hauser AG
- Hach Company Inc.
- ABB Ltd.
- Schneider Electric SE (Foxboro)
- Emerson Electric Co.
- Honeywell International Inc.
- KOBOLD Messring GmbH
- Georg Fischer Piping Systems Ltd.
- Yokogawa Electric Corporation
- Xylem Inc.
- Thermo Fisher Scientific Inc.
- Halma Plc.
- Mettler-Toledo International Inc.