Xcout IntelTerrestrial Energy competitors & alternatives
The 12 closest competitors and alternatives to Terrestrial Energy among regulated electric companies — ranked by similarity to what Terrestrial Energy actually does, not by market-cap band.
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About Terrestrial Energy
Terrestrial Energy is a U.S. nuclear technology company working on Generation IV nuclear technology. The nuclear plant is designed to produce cost-competitive, high-temperature thermal energy with zero emissions.
Terrestrial Energy at a glance
Terrestrial Energy is a regulated electric company headquartered in Charlotte, United States. It is publicly listed (IMSR) with a market capitalisation of $386.7M. Xcout tracks 29 named people at Terrestrial Energy, including Simon Irish (Chief Executive Officer & Director). Xcout recorded 1 job posting from Terrestrial Energy in the last 90 days.
Terrestrial Energy leadership
- Simon IrishChief Executive Officer & Director
- William SmithChief Operating Officer
- Brian ThrasherChief Financial Officer
- David LeBlancChief Technology Officer & Director
- Steve MillsapChief Compliance Officer, General Counsel & Secretary
- Pamela CowanExecutive Vice President of Engineering
23 more named people on record for Terrestrial Energy, with roles, board committees and tenure — see the full roster →
Hiring at Terrestrial Energy
Xcout recorded 1 job posting from Terrestrial Energy in the last 90 days, from a hiring record Xcout has kept since June 2026.
The weekly hiring trend, the roles and locations behind it — see Terrestrial Energy's hiring signals →
Top 12 Terrestrial Energy competitors
Ranked by semantic similarity — how close each company is to Terrestrial Energy by what it does, using Xcout's live company graph. Click any company for its full profile, or its competitor set.
Environmental Solutions
Carbonium Core is a U.S.-based advanced materials company headquartered in Tampa, Florida. It specializes in the production of ultra-pure, nuclear-grade graphite, which is intended for use in 4th-generation nuclear reactors.
Deep Tech
Apollo Atomics is a privately held nuclear company founded in 2025 and headquartered in Cambridge, Massachusetts. The company specializes in delivering high-power nuclear reactor solutions backed by expertise in reactor design and operations.
Nuclear Technology
SHINE Technologies develops fusion technology for multiple commercial applications, including producing medical isotopes like Molybdenum-99 and Lutetium-177, recycling nuclear waste, providing neutron testing for critical components, and advancing research toward clean fusion energy generation. The company serves medical, industrial, aerospace, defense, and energy sectors.
Carbon Capture
Cool Planet Technologies is a carbon capture company aiming to significantly reduce the cost of removing carbon dioxide from industrial flue gas emissions.
CleanTech
Polar Night Energy, founded in 2018 and based in Tampere, Finland, is an innovative energy storage company that designs and manufactures high-temperature thermal energy storage systems to help transition industrial sectors from fossil fuels to renewable energy.
Nuclear
Valar Atomic is a synthetic fuel and nuclear technology development company focused on alternative energy pathways, including synthetic fuel production and nuclear reactor components.
Carbon Capture
Global Thermostat is a carbon-removal company developing direct-air-capture systems that use solid sorbents to extract carbon dioxide from ambient air. It serves organizations seeking captured CO2 for permanent storage or utilization, including industrial and climate-focused customers.
Nuclear Fusion Technology
Cambridge Heavy Industries Inc. has developed a modular, benchtop-scale inertial confinement fusion system designed for tritium production to supply fuel for fusion reactors. The company serves the nuclear fusion sector by addressing the strained global supply chain of tritium.
Clean Technology
Epyr provides a thermal energy storage solution that converts renewable electricity into high-temperature heat for industrial applications. The company's plug-in system utilizes resistive heating to deliver zero-carbon, cost-competitive heat, helping industrial clients transition away from fossil fuels.
Mining
Generation Uranium Inc. is a mineral exploration company focused on acquiring and developing uranium properties, primarily operating the Yath Project in the Thelon Basin of Nunavut, Canada. The company serves investors seeking exposure to the nuclear energy sector by exploring and advancing high-grade uranium deposits to support the global clean energy transition.
Greentech
Exergy3 is a clean-tech spinout company headquartered in Edinburgh, United Kingdom, focused on providing solutions for decarbonising industry with cheaper and greener thermal energy.
CleanTech
Mazama Energy is a geothermal electric power generation company building the world's first superhot rock engineered geothermal system. Based in Central Oregon, United States, the company advances innovative clean energy solutions through projects like Athena and Ceres.
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