New and recently funded Energy Startups
1
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
2
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.
3
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.
4
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.
5
Country: Canada | Funding: CA$13.1M
Nexus is is a uranium exploration company focused on meeting growing uranium demand driven by the nuclear energy renaissance. It operates an advancing a portfolio of uranium projects in the US and Canada. The Company’s US projects are potentially amenable to in-situ recovery (ISR) mining methods.
Nexus is is a uranium exploration company focused on meeting growing uranium demand driven by the nuclear energy renaissance. It operates an advancing a portfolio of uranium projects in the US and Canada. The Company’s US projects are potentially amenable to in-situ recovery (ISR) mining methods.
6
Country: Canada
Bruce Power is a nuclear power generator. The company generates almost 30 percent of Ontarios power. They have 8 active power units in operation with a total installed capacity of 6,384 MW and an annual generation capacity of 47,630 GWh of power. Bruce Power provides nuclear power to one in three homes, hospitals, schools and businesses in Ontario and medical isotopes across the globe to keep medical equipment sterilized and assist in fighting disease.
Bruce Power is a nuclear power generator. The company generates almost 30 percent of Ontarios power. They have 8 active power units in operation with a total installed capacity of 6,384 MW and an annual generation capacity of 47,630 GWh of power. Bruce Power provides nuclear power to one in three homes, hospitals, schools and businesses in Ontario and medical isotopes across the globe to keep medical equipment sterilized and assist in fighting disease.
7
Country: Canada
Nuclear Promise X is a nuclear consultant firm that helps nuclear organizations accelerate the path from strategy to delivery. By combining nuclear project expertise with practical AI platform and digital implementation, NPX helps organizations turn fragmented project information into actionable intelligence, strengthen execution discipline, and move complex nuclear initiatives forward with greater speed and confidence.
Nuclear Promise X is a nuclear consultant firm that helps nuclear organizations accelerate the path from strategy to delivery. By combining nuclear project expertise with practical AI platform and digital implementation, NPX helps organizations turn fragmented project information into actionable intelligence, strengthen execution discipline, and move complex nuclear initiatives forward with greater speed and confidence.
8
Country: Canada | Funding: $2.8M
Prodigy Clean Energy is advancing its Transportable Nuclear Power Plant technology as critical enabling infrastructure to deploy SMRs in remote regions. Prodigy’s TNPPs can package, transport and deploy any reactor, allowing end-users to customize facilities by gross power output and energy type. Multiple SMR modules can be packaged within the facility to reach target capacity ranging from ~5MWe to ~1GWe. After fabrication, outfitting, and transport to the deployment location, Prodigy TNPPs are secured to site-based infrastructure. The result is a completely self-sufficient nuclear generating facility rapidly commissioned and put into service.
Prodigy Clean Energy is advancing its Transportable Nuclear Power Plant technology as critical enabling infrastructure to deploy SMRs in remote regions. Prodigy’s TNPPs can package, transport and deploy any reactor, allowing end-users to customize facilities by gross power output and energy type. Multiple SMR modules can be packaged within the facility to reach target capacity ranging from ~5MWe to ~1GWe. After fabrication, outfitting, and transport to the deployment location, Prodigy TNPPs are secured to site-based infrastructure. The result is a completely self-sufficient nuclear generating facility rapidly commissioned and put into service.
9
Country: Canada
Stellarex is a fusion energy development firm that uses a simplified Stellarator and milestone‑driven demonstrators to validate systems integration, de‑risk scale‑up, and execute a staged technology roadmap from prototypes through demonstration devices to commercial fusion power plants. It's running two device programs - SXA (intermediate prototype) and SX0 (net‑energy demonstrator) - run in parallel from 2026 through 2032, anchored by the launch of the Centre for Fusion Energy.
Stellarex is a fusion energy development firm that uses a simplified Stellarator and milestone‑driven demonstrators to validate systems integration, de‑risk scale‑up, and execute a staged technology roadmap from prototypes through demonstration devices to commercial fusion power plants. It's running two device programs - SXA (intermediate prototype) and SX0 (net‑energy demonstrator) - run in parallel from 2026 through 2032, anchored by the launch of the Centre for Fusion Energy.
10
Country: USA | Funding: $596M
Antares designs and builds microfission reactors for strategic energy applications, including space missions, commercial and military energy resilience. Its R1 microreactor can produce from 100 kilowatts to 1 megawatt and uses TRISO fuel, which consists of uranium spheres coated with carbon and ceramics, embedded in graphite. It's designed to run safely and autonomously for 6+ years without refueling. The company performs high-precision machining of the nuclear graphite in-house, speeding design iterations. The optimized reactor design simplifies deployment with a minimal number of actuators. The control drums, made of graphite and boron carbide, have independent actuators, inspired by the designs of historical space reactors. Antares has a manufacturing facility in California and has already tested the first electrically heated demonstration unit (EDU).
Antares designs and builds microfission reactors for strategic energy applications, including space missions, commercial and military energy resilience. Its R1 microreactor can produce from 100 kilowatts to 1 megawatt and uses TRISO fuel, which consists of uranium spheres coated with carbon and ceramics, embedded in graphite. It's designed to run safely and autonomously for 6+ years without refueling. The company performs high-precision machining of the nuclear graphite in-house, speeding design iterations. The optimized reactor design simplifies deployment with a minimal number of actuators. The control drums, made of graphite and boron carbide, have independent actuators, inspired by the designs of historical space reactors. Antares has a manufacturing facility in California and has already tested the first electrically heated demonstration unit (EDU).
