- Robert Bosch GmbH
- ABB Limited
- Honeywell International Corporation
- Eaton Corporation
- Delphi Automotive PLC
- Figaro Engineering Inc.
- Advanced Micro Instruments Inc.
- Yokogawa Electric Corporation
- City Technology Limited
- General Electric Company
- Hamilton Company
- Sensore Electronic GmbH
- Aeroqual Limited
- AlphaSense Inc.
- Control Instruments Corporation
- Fujikura Limited
- Membrapor AG
- Mettler-Toledo International Inc.
- Francisco Albero S.A.U.
- Maxtec
LLC