- 3B-the Fibreglass Company
- Cytec Solvay Group
- Dow
- Hexcel Corporation
- Hyosung Corporation
- Kermel
- Kolon Industries Inc.
- Koninklijke Ten Cate BV
- Mitsubishi Chemical Carbon Fiber and Composites Inc.
- Owens Corning
- SGL Group
- Teijin Limited
- Toray Industries Inc.
- Yantai Tayho Advanced Materials Co. Ltd