Terrestrial Energy

Charlotte, North Carolina, USA (listed) / Toronto, Canada (founded)
Active
MSR

Company overview

Founded
2013
Total funding
$292M+ (Nasdaq IMSR listing Oct 2025) + $94M prior private funding
Technology
MSR — Molten Salt Reactor

About

Terrestrial Energy develops small modular nuclear plants for dispatchable, carbon-free industrial heat and electricity. Its Generation IV Integral Molten Salt Reactor uses molten-fluoride salt as coolant and fuel, standard-assay low-enriched uranium, and a sealed, replaceable reactor core unit. On 12 May 2026, the company announced that the U.S. Nuclear Regulatory Commission issued a Safety Evaluation Report approving its IMSR Postulated Initiating Events Topical Report, a further foundational element of the reactor's licensing basis.

Key investors

HCM II Acquisition Corp. (SPAC), $50M PIPE institutional investors

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