New nuclear energy companies are bringing an innovative era in power generation. This article features 10 top firms, each excelling in areas like fusion technologies, novel microreactor designs, and efficient radioactive waste management. These companies are innovating within their niches and also collaboratively driving the industry towards safer, more sustainable, and more efficient nuclear energy solutions on a global scale. Continue reading to gain comprehensive insights on:
- Profiles of 10 Pioneering New Nuclear Energy Companies
- How to Spot Innovative Nuclear Energy Companies Easily
Key Takeaways
Drawing insights from the Big Data & AI-powered StartUs Insights Discovery Platform that provides data on over 3.7+ million emerging companies globally, we explore the evolving landscape of the nuclear energy industry. This sector is marked by key trends and a substantial workforce, shaping its future. In January 2025, we last updated this report. Notice something that’s not right? Let’s fix it together. Here are some key insights at a glance:
- Nuclear Energy Trends: The industry is evolving with trends like radioactive waste management, pressurized water reactors, small nuclear power reactors, inertial confinement fusion, and light water reactors. Emphasizing efficiency and safety, these advancements reshape nuclear energy, reflecting a dynamic shift towards cleaner and more versatile solutions.
- Nuclear Energy Industry Stats: The industry comprises over 6.2K organizations, with a dip of 3.64% in the annual growth rate. However, it employs a massive workforce of approximately 1.1 million people and 2K new nuclear energy companies have emerged over the last 5 years.
- List of Top 10 Nuclear Power Companies to Watch:
- Radiant Nuclear – Portable Nuclear Microreactor
- NAAREA – Nuclear Microreactors
- Blossom Energy – Thermal Energy Decarbonization
- Curio LV – Closed Fuel Cycle–based Energy
- Deutelio – Poloidal Magnetic Configuration
- Boston Atomics – Modular Nuclear Reactor
- Electric Fusion Systems – Portable and Industrial Fusion Energy
- Type One Energy – Stellarator–based Fusion Reactor
- Ex-Fusion – Laser Fusion
- Aalo Atomics – Nuclear Reactors
Discover 10 out of 2K+ Emerging Nuclear Energy Companies
The nuclear power industry is experiencing a transformative surge of innovative applications and technologies. Here, we highlight 10 new nuclear power companies advancing the industry with compact nuclear microreactors, high-temperature gas reactors (HTGR), laser-based fusion, and much more. These advancements promise increased efficiency, accessibility, and tailored solutions for the nuclear power landscape.
Note on Signal Strength
One of the unique metrics we feature for each company is Signal Strength, a proprietary data point generated by our Discovery Platform. Signal Strength gauges the extent to which a company’s influence has permeated the global ecosystem of startups, scaleups, and emerging companies. This proprietary metric serves as a valuable guidepost for understanding a company’s standing in the broader market landscape.
1. Radiant Nuclear
- Founding Year: 2019
- Employee Range: 11-50
- Location: USA
- Signal Strength: Very Strong
- Funding: Secured a USD 100 million
Radiant Nuclear manufactures Kaleidos, a portable nuclear microreactor that replaces diesel generators. This compact reactor is ideal for remote villages, hospitals, data centers, and military installations.
Kaleidos operates without on-site water, using air cooling, and can provide both electricity and 1.9 MW of thermal power for heating or desalination. Its meltdown-proof TRISO fuel and air-cooled core ensure safety and ease regulatory approval.
2. NAAREA
- Founding Year: 2020
- Employee Range: 51-100
- Location: France
- Signal Strength: Very strong
NAAREA develops the XAMR, a fourth-generation molten salt-fast neutron microreactor. Utilizing long-lived nuclear waste, XAMR produces heat and electricity, offering a carbon-free, decentralized energy solution.
NAAREA thus supports sustainable development goals and benefits industries and remote areas with its compact, efficient energy generation.
3. Blossom Energy
- Founding Year: 2022
- Employee Range: 2-10
- Location: Japan
- Signal Strength: Very strong
- Funding: Secured approximately USD 3.05 million
Blossom Energy develops a high-temperature gas reactor (HTGR), a Generation IV nuclear SMR, focusing on safe, affordable, and reliable clean energy. Their HTGR technology ensures intrinsic safety, minimizing severe accident risks.
Blossom Energy supports sustainable development globally, producing tritium for fusion reactors and medical isotopes. This innovation benefits countries reliant on energy imports, contributing to decarbonization and energy security.
4. Curio LV
- Founding Year: 2021
- Employee Range: 11-50
- Location: USA
- Signal Strength: Very strong
- Funding: Secured USD 14 million in a seed funding round
Curio LV focuses on closing the nuclear fuel cycle with its NuCycle technology. This involves recycling transuranic isotopes from spent nuclear fuel, enabling the production of energy with a significantly reduced environmental footprint.
Curio LV’s technology benefits the global effort in decarbonization and supports the sustainable development of clean, abundant nuclear energy.
5. Deutelio
- Founding Year: 2022
- Employee Range: 2-10
- Location: Italy
- Signal Strength: Strong
Deutelio is developing nuclear fusion energy through magnetic confinement with the Polomac configuration. This technology exploits Deuterium, an abundant natural isotope, for clean and sustainable energy production.
Deutelio’s approach, focusing on high confinement efficiency and environmental safety, benefits global decarbonization efforts and meets increasing energy demands.
6. Boston Atomics
- Founding Year: 2020
- Employee Range: 2-10
- Location: USA
- Signal Strength: Very Strong
Boston Atomics makes the Modular, Integrated, Gas-cooled, High Temperature Reactor (MIGHTR), focusing on safe, low-cost nuclear technology for decarbonizing process heat and electricity.
MIGHTR offers a passively safe, TRISO-fueled, gas-cooled reactor. It benefits industries needing low-carbon, high-temperature process heat and power, with a design optimized for easy construction and cost efficiency.
7. Electric Fusion Systems
- Founding Year: 2020
- Employee Range: 2-10
- Location: USA
- Signal Strength: Very strong
Electric Fusion Systems generates fusion energy that uses a proton-lithium Rydberg matter fusion fuel. The technology, showcased in a portable device, provides clean, safe, and economically favorable fusion power generation.
The aneutronic fusion process provides a scalable solution for diverse applications, from automotive transportation to large-scale industrial and utility needs.
8. Type One Energy
- Founding Year: 2019
- Employee Range: 51-100
- Location: USA
- Signal Strength: Very Strong
Type One Energy develops stellarator fusion energy systems using additive manufacturing, computational physics, and high-field superconducting magnets.
Their FusionDirect program is creating a fusion pilot plant for grid-ready electricity generation. This technology benefits the clean energy sector, offering a sustainable and efficient power source.
9. Ex-Fusion
- Founding Year: 2021
- Employee Range: 2-10
- Location: Japan
- Signal Strength: Very strong
EX-Fusion is advancing laser-based nuclear fusion technology to provide safe, clean, and inexpensive energy. It is working on building a commercial nuclear fusion reactor powered by lasers.
EX-Fusion thus benefits global energy demands and climate change challenges, offering a sustainable power solution.
10. Aalo Atomics
- Founding Year: 2023
- Employee Range: 2-10
- Location: Canada
- Signal Strength: Very strong
Aalo Atomics manufactures 10-megawatt electric (MWe) small nuclear fission reactors that offer clean energy by making nuclear power cost-effective and safe. The company thus aids in achieving low-cost electricity for widespread deployment.
These emerging nuclear power generation companies with their innovations, spanning microreactors to fusion technologies, promise a future of enhanced efficiency, accessibility, and tailored solutions for nuclear energy.
Tips for Swiftly Identifying New Nuclear Power Companies
Utilizing a SaaS platform like the Discovery Platform for identifying new nuclear energy companies provides significant benefits compared to traditional scouting methods:
- Increased Efficiency: The Discovery Platform integrates advanced tools that optimize the scouting process, presenting a more efficient alternative to conventional research methods. This ensures a time-saving and resource-efficient identification of innovative players in the nuclear power sector.
- Access to Real-time Insights: Stay ahead of the curve with the latest information on nuclear power industry trends. The platform delivers near real-time updates on emerging companies, empowering you to make swift, well-informed decisions based on the most current data.
- Precise Scouting: Customize your search to target specific niches within the nuclear energy domain, such as compact nuclear microreactors or laser-based fusion technologies. The platform’s diverse filtering options enable precise scouting efforts, ensuring you discover the most relevant and pioneering companies in the field.
Ready to Explore All Nuclear Energy Companies?
We’ve explored the dynamic landscape of the nuclear energy industry, examining the latest trends and spotlighting exceptional companies driving innovation. To dive deeper, download our free Renewables Report or schedule a demo of the Discovery Platform for a customized exploration of these groundbreaking developments.
