Top 26 Nuclear Energy startups

Dec 27, 2024 | By Alexander Gillet

Nuclear energy startups are developing new technologies and advanced reactor designs, such as small modular reactors (SMRs), molten salt reactors (MSRs), to enhance safety, efficiency and waste management in the nuclear power industry.
1
Country: USA | Funding: $900M
Pacific Fusion focuses on renewable energy generation, emphasizing affordable fusion power inspired by nature.
2
Country: USA | Funding: $758.6M
TerraPower focuses on developing a sustainable and economic nuclear energy system while reducing proliferation risks.
3
Country: France | Funding: €500M
Orano is focusing its attention on the recovery of nuclear materials and the management of nuclear waste to generate safe, low-carbon electricity. With significant expertise in the nuclear fuel cycle, they offer customers tailor-made solutions for every stage of nuclear power generation, from mining, conversion, enrichment, recycling, logistics, and engineering to decommissioning and dismantling.
4
Country: UK | Funding: $526.8M
Newcleo is developing the latest generation of nuclear reactors providing a path to combatting both climate change and existing nuclear waste. It is working on so-called Small Modular Reactors (SMRs) and wants to use so-called MOX technology to make it possible to recycle spent uranium from conventional nuclear power plants.
5
Country: USA | Funding: $469.6M
NuScale Power has developed a small modular reactor (SMR) to supply energy for electrical generation and other heat process applications.
6
Country: USA | Funding: $306M
Oklo is building an always on, container-sized, truly carbon-free and emission-free nuclear generator.
7
Country: USA | Funding: $285.2M
X-energy is a nuclear reactor & fuel design engineering company.
8
Country: USA | Funding: $64M
Last Energy is creating a new system for the development and delivery of small modular nuclear power plants.
9
Country: USA | Funding: $16.3K
Kairos Power develops an advanced reactor technology that leverages TRI-Structural ISOtropic (TRISO) fuel in pebble form in combination with a low-pressure fluoride salt coolant.
10
Country: USA | Funding: $45M
Blue Energy is a nuclear power plant company that provides reliable, clean, and abundant electricity.
11
Country: Switzerland | Funding: CHF35.1M
Transmutex develops technology designed to reduce the stockpile of nuclear waste-based energy.
12
Country: Denmark | Funding: $33.6M
Copenhagen Atomics is a manufacturer of thorium reactors.
13
Country: USA | Funding: $33.3M
Aalo makes small, factory-manufactured nuclear reactors that can fit in your garage, and power anything from a datacenter to a large city.
14
Country: Denmark | Funding: $28.5M
Seaborg develops the Compact Molten Salt Reactor - a smal modular reactor based on molten fluoride salt.
15
Country: USA | Funding: $26.6M
Phoenix designs and manufactures the highest-yielding neutron generators and commercializes nuclear technologies for practical applications.
16
Country: Netherlands | Funding: €12.5M
Thorizon aims to develop a new generation of nuclear power plants - molten salt reactors.
17
Country: Sweden | Funding: SEK80M
Blykalla is developing and building small modular reactors to deliver the next generation of clean energy. We take leading research to industrialization through our Swedish Advanced Lead Reactor (SEALER).
18
Country: USA | Funding: $6.9M
Blue Wave AI Labs is using predictive analytics to operate nuclear reactors across the United States and to help them operate as safely and efficiently as possible
19
Country: USA | Funding: $5.5M
Transatomic Power is a nuclear reactor design company offering a waste-annihilating molten salt reactor.
20
Country: Canada | Funding: $5M
Madison Metals is committed to innovation and sustainability, forging the future of uranium production while meeting global climate action initiative standards.
Editor: Alexander Gillet
Alexander Gillet is a senior editor for EnergyStartups. He has a deep background in energy sector and startups. Alexander graduated from Emlyon Business School, a leading French business school specialized in entrepreneurship. He has helped several non-profit organizations dedicated to promoting environmental education and sustainability and has written over 250 articles on energy technology for various websites. In his free time, Alexander enjoys yoga, camping and exploring the Blue Ridge Mountains. You can contact Alexander at alexgillet(at)energystartups(dot)com