- Air Liquide
- Air Products and Chemicals Inc.
- Exxon Mobil Corporation
- Gazprom
- Global Gases
- Gulf Cryo
- Iwatani Corporation
- Linde Plc
- Matheson Tri-Gas Inc.
- Messer Group GmbH
- NexAir LLC
- PGNIG SA
- Qatargas Operating Company Limited
- Renergen
- Weil Group