- Airgas Inc.
- Air Liquide
- Air Products and Chemicals Inc.
- AMCS Corporation
- Asia Technical Gas Co Pte Ltd
- BASF SE
- Bhuruka Gases Limited
- Buzwair Group
- Chart Industries
- Ellenbarrie industrial Gases
- EPC Group (Cryotech)
- Gulf Cryo
- Matheson Tri-Gas Inc.
- Messer Group GmbH
- Praxair Technology Inc.
- SOL SpA
- Taiyo Nippon Sanso Corporation
- The Linde Group