- GE-Hitachi Nuclear Energy Inc.
- Westinghouse Electric Company LLC (Toshiba)
- KEPCO Engineering & Construction
- SKODA JS a.s.
- China National Nuclear Corporation
- Bilfinger SE
- Larsen & Toubro Limited
- Doosan Heavy Industries & Construction Co. Ltd.
- Mitsubishi Heavy Industries Ltd
- Dongfang Electric Corporation Limited
- Shanghai Electric Group Company Limited
- Rosatom