- Hexagon Composites ASA
- Worthington Enterprises Inc.
- City Machine & Welding Inc.
- Luxfer Gas Cylinders
- Koyuncu Gas and Gas Equipment
- Gaznet O?
- EKC
- Quantum Fuel Systems LLC.
- Faber Industrie SPA
- Beijing Tianhai Industry Co. Ltd.
- FIBA Technologies Inc.
- Pico Flow Controls Group (PFC Group)
- NPROXX
- Rheinmetall AG
- CIMC Enric Holdings Limited