1. ARC Energy LLC
2. China National Nuclear Corporation
3. Fluor Corporation
4. GE Hitachi Nuclear Energy
5. Holtec International
6. IHI Corporation
7. Leadcold Reactors AB
8. Mitsubishi Power Ltd.
9. Moltex Energy Ltd.
10. NuScale Power
LLC.
11. OKBM Afrikantov
12. Rolls-Royce plc
13. SNC-Lavalin Group Inc.
14. Terrestrial Energy
15. The Westinghouse Electric Corporation