New and recently funded Energy Startups
1
Country: UK
Cambridge AtomWorks is focused on delivering a nuclear micro-reactor ODIN built in the UK. The startup intends to demonstrate the first nuclear micro-reactor operational prototype by 2030 and by the mid-2030s - become a trusted global supplier of clean, sustainable energy to off-grid customers. ODIN is a low-pressure, molten-salt-cooled, solid-fuel fission reactor integrated with power conversion and heat rejection systems, enabling substantial and compact, standalone electricity supply without external connections.
Cambridge AtomWorks is focused on delivering a nuclear micro-reactor ODIN built in the UK. The startup intends to demonstrate the first nuclear micro-reactor operational prototype by 2030 and by the mid-2030s - become a trusted global supplier of clean, sustainable energy to off-grid customers. ODIN is a low-pressure, molten-salt-cooled, solid-fuel fission reactor integrated with power conversion and heat rejection systems, enabling substantial and compact, standalone electricity supply without external connections.
2
Country: UK | Funding: $104.7M
CORE POWER is building ship-based nuclear energy systems for industrial and coastal applications. They are designed for deployment where consistent, high-density power is required. And company’s Propulsion systems will bring nuclear power to commercial vessels. Designed for long-duration operation and consistent performance across global routes.
CORE POWER is building ship-based nuclear energy systems for industrial and coastal applications. They are designed for deployment where consistent, high-density power is required. And company’s Propulsion systems will bring nuclear power to commercial vessels. Designed for long-duration operation and consistent performance across global routes.
3
Country: UK
Fermi Development is identifying, securing and developing the sites that will enable the UK's next generation of Small and Advanced Modular Reactors. The company combine proven development expertise with a disciplined, technology agnostic approach to create projects that are ready to progress, helping unlock investment, strengthen energy security and accelerate the deployment of reliable low carbon power.
Fermi Development is identifying, securing and developing the sites that will enable the UK's next generation of Small and Advanced Modular Reactors. The company combine proven development expertise with a disciplined, technology agnostic approach to create projects that are ready to progress, helping unlock investment, strengthen energy security and accelerate the deployment of reliable low carbon power.
4
Country: UK
Perpetual Atomics is a space nuclear power technology company providing radioisotope power systems, fuel energy innovation, and recycling.
Perpetual Atomics is a space nuclear power technology company providing radioisotope power systems, fuel energy innovation, and recycling.
5
Country: UK | Funding: $107M
First Light Fusion (FLF) develops Inertial confinement fusion reactor that can produce power. It's powered by FLARE, combining efficient compression with fast ignition to enable a simpler, more scalable path to fusion power.
First Light Fusion (FLF) develops Inertial confinement fusion reactor that can produce power. It's powered by FLARE, combining efficient compression with fast ignition to enable a simpler, more scalable path to fusion power.
6
Country: UK | Funding: £15M
Nuclear Turbines is a spinoff of BAE Systems that develops new nuclear reactor with high-temperature turbine (instead of steam turbine), which will lead to lower energy costs. The reactor directly heats compressed air before returning it to the turbine at high temperature to generate electricity, uses novel reactor materials and bypasses the need for graphite. The high-temperature gas turbine (normally found in jet engines and gas-fired power plants) converts extremely hot air directly into power with very little energy loss.
Nuclear Turbines is a spinoff of BAE Systems that develops new nuclear reactor with high-temperature turbine (instead of steam turbine), which will lead to lower energy costs. The reactor directly heats compressed air before returning it to the turbine at high temperature to generate electricity, uses novel reactor materials and bypasses the need for graphite. The high-temperature gas turbine (normally found in jet engines and gas-fired power plants) converts extremely hot air directly into power with very little energy loss.
7
Country: USA | Funding: $27M
TAR is a energy startup aiming to make data center power more efficient. It's building modular, scalable, behind-the-meter energy systems consisting of solar, batteries, wind energy and (for emergencies / long periods of unfavorable weather conditions) simple cycle gas turbines
TAR is a energy startup aiming to make data center power more efficient. It's building modular, scalable, behind-the-meter energy systems consisting of solar, batteries, wind energy and (for emergencies / long periods of unfavorable weather conditions) simple cycle gas turbines
8
Country: Canada | Funding: $66M
ARC is a clean energy technology company developing the ARC-100, an advanced small modular reactor offering safe, reliable, and economical power. Built on the EBR-II, which ran for over 30 years at Idaho National Laboratory, the ARC-100 is factory-fabricated and modular, delivering firm baseload power ideally matched for data center and industrial users. It's a liquid sodium fast reactor that theoreticlly enables a future closed fuel cycle with 99% fuel utilization. In any loss-of-power or loss-of-cooling scenario, the reactor shuts itself down through natural physics: thermal expansion of the fuel and coolant inserts negative reactivity, and natural convection of the sodium removes decay heat indefinitely. ARC is a U.S. Department of Energy Advanced Reactor Demonstration Program awardee advancing first U.S. deployment, with additional international deployment underway in Canada and Türkiye.
ARC is a clean energy technology company developing the ARC-100, an advanced small modular reactor offering safe, reliable, and economical power. Built on the EBR-II, which ran for over 30 years at Idaho National Laboratory, the ARC-100 is factory-fabricated and modular, delivering firm baseload power ideally matched for data center and industrial users. It's a liquid sodium fast reactor that theoreticlly enables a future closed fuel cycle with 99% fuel utilization. In any loss-of-power or loss-of-cooling scenario, the reactor shuts itself down through natural physics: thermal expansion of the fuel and coolant inserts negative reactivity, and natural convection of the sodium removes decay heat indefinitely. ARC is a U.S. Department of Energy Advanced Reactor Demonstration Program awardee advancing first U.S. deployment, with additional international deployment underway in Canada and Türkiye.
9
Country: Canada | Funding: $1.6B
NexGen Energy is uranium exploration and development company. Rook I, NexGen’s flagship project can produce up to 30 million pounds of uranium a year. Its state-of-the-art infrastructure designed with automation and safety at its core, supported by two vertical shafts that will transport people, materials and ore while providing fresh air to the underground workings.
NexGen Energy is uranium exploration and development company. Rook I, NexGen’s flagship project can produce up to 30 million pounds of uranium a year. Its state-of-the-art infrastructure designed with automation and safety at its core, supported by two vertical shafts that will transport people, materials and ore while providing fresh air to the underground workings.
10
Country: Canada | Funding: $256.1M
enCore Energy is a uranium developer and explorer focusing on advancing its portfolio of ISR and conventional assets.
enCore Energy is a uranium developer and explorer focusing on advancing its portfolio of ISR and conventional assets.
