Realta Fusion is a Wisconsin-based fusion energy startup developing magnetic mirror fusion machines. In May 2026 the company formed a strategic partnership with Japan's Kyoto Fusioneering for plasma heating systems, neutron sources for materials qualification, and tritium systems. While primarily a fusion programme, Realta's neutron source applications have direct relevance to SMR materials testing and qualification — representing a growing intersection between fusion and advanced fission development.
Private investors, DOE