Small and medium enterprises may not dominate headlines in the fusion world, but they are increasingly essential to its progress. From supplying critical components to accelerating innovation cycles, SMEs are shaping the global fusion ecosystem in ways large institutions alone cannot. Explore how SMEs are strengthening the fusion supply chain and why their role matters.

Fusion’s future is being built on factory floors, not in physics labs. Across the U.S., U.K., and Asia, companies like GE Vernova, ABB, Hitachi Energy, and Kawasaki are constructing the industrial systems—magnets, cryogenics, and tritium facilities—that will define the trillion-dollar race to commercial fusion.