?- Smiths Detection Inc.
- General Electric Co.
- Honeywell International Inc.
- MSA Safety Incorporated
- Pepperl+Fuchs Group
- AirTest Technologies Inc.
- Siemens AG
- ABB Ltd
- Halma plc.
- Delphi Automotive PLC.
- Alpha MOS
- Yokogawa Electric Corporation.
- Denso Corporation