1
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).
2
Country: USA | Funding: $518.8M
Radiant produces a portable nuclear microreactor Kaleidos that can replace diesel generators. It is a compact nuclear reactor (1 MW) working on meltdown-resistant TRISO fuel with all the necessary equipment to generate electricity for remote villages and facilities, as well as backup power for hospitals and data centers. It requires no on-site water consumption thanks to the use of fans for air cooling. Helium conducts heat away from the core and does not become radioactive, eliminating the impact of leaks. The reactor is assembled and fueled at the factory and delivered by truck or plane. Radiant has a contract to mass-produce microreactors for US military bases.
Radiant produces a portable nuclear microreactor Kaleidos that can replace diesel generators. It is a compact nuclear reactor (1 MW) working on meltdown-resistant TRISO fuel with all the necessary equipment to generate electricity for remote villages and facilities, as well as backup power for hospitals and data centers. It requires no on-site water consumption thanks to the use of fans for air cooling. Helium conducts heat away from the core and does not become radioactive, eliminating the impact of leaks. The reactor is assembled and fueled at the factory and delivered by truck or plane. Radiant has a contract to mass-produce microreactors for US military bases.
3
Country: USA | Funding: $484.7M
Mach is developing a suite of hydrogen-powered platforms and munitions for the military, including unmanned aerial vehicles and hydrogen generation systems.
Mach is developing a suite of hydrogen-powered platforms and munitions for the military, including unmanned aerial vehicles and hydrogen generation systems.
4
Country: Israel | Funding: $206.5M
StoreDot develops quick-charging battery to replace the lithium-ion components used on phones, electric cars, military drones and other un-wired devices.
StoreDot develops quick-charging battery to replace the lithium-ion components used on phones, electric cars, military drones and other un-wired devices.
5
Country: USA | Funding: $149.5M
NanoGraf is building batteries that operate at extreme temperatures and after they've been crushed or punctured. These batteries are used in Defense applications.
NanoGraf is building batteries that operate at extreme temperatures and after they've been crushed or punctured. These batteries are used in Defense applications.
6
Country: USA | Funding: $83.1M
Anthro Energy is a materials company that offers build batteries to enable radically new electronics. Anthro Energy's flexible, safe, and high-performance batteries are widely used for defense applications The startup is building Kentucky factory that is aimed to become a key node in the emerging U.S. battery supply chain. It will be set up to make a range of electrolytes, though Mackanic said he’d eventually like to see much of the output dedicated to Athro’s own polymer product, Proteus, which is designed to drop into an existing production line with minimal tweaks — a major reason why the startup can begin production using other companies’ formulations. Once customers validate Anthro’s own material, the startup can shift production accordingly.
Anthro Energy is a materials company that offers build batteries to enable radically new electronics. Anthro Energy's flexible, safe, and high-performance batteries are widely used for defense applications The startup is building Kentucky factory that is aimed to become a key node in the emerging U.S. battery supply chain. It will be set up to make a range of electrolytes, though Mackanic said he’d eventually like to see much of the output dedicated to Athro’s own polymer product, Proteus, which is designed to drop into an existing production line with minimal tweaks — a major reason why the startup can begin production using other companies’ formulations. Once customers validate Anthro’s own material, the startup can shift production accordingly.
7
Country: USA | Funding: $50M
Aetherflux is building a constellation of small LEO satellites to beam solar energy to Earth using infrared lasers. This approach differs from traditional space-based solar power (SBSP) concepts, which rely on massive geostationary platforms transmitting power via microwaves. The US Defense Department has allocated funding for the development of this technology to ensure the energy supply to remote military bases and contested areas. Additionally, the Aetherflux satellites will have an orbital computing node that utilizes continuous solar power and radiative cooling to enable high-performance data processing in space. The node uses optical inter-satellite links and advanced relay networks to ensure continuous availability, consistent with ground-based application servers.
Aetherflux is building a constellation of small LEO satellites to beam solar energy to Earth using infrared lasers. This approach differs from traditional space-based solar power (SBSP) concepts, which rely on massive geostationary platforms transmitting power via microwaves. The US Defense Department has allocated funding for the development of this technology to ensure the energy supply to remote military bases and contested areas. Additionally, the Aetherflux satellites will have an orbital computing node that utilizes continuous solar power and radiative cooling to enable high-performance data processing in space. The node uses optical inter-satellite links and advanced relay networks to ensure continuous availability, consistent with ground-based application servers.
8
Country: USA | Funding: $42M
Chariot develops mobile energy solutions for military use. They provide autonomous power supply for drones, sensors, communication and control systems. According to the company, its products are already used by units of the US Army and the Defense Innovation Unit (DIU), as well as commercial customers.
Chariot develops mobile energy solutions for military use. They provide autonomous power supply for drones, sensors, communication and control systems. According to the company, its products are already used by units of the US Army and the Defense Innovation Unit (DIU), as well as commercial customers.
9
Country: USA | Funding: $22M
Enexor BioEnergy developed a small-scale, renewable energy system that converts organic and biomass waste into clean electricity as well as hot and chilled water. This combined heating and power system has broad applications for commercial, industrial and institutional use.
Enexor BioEnergy developed a small-scale, renewable energy system that converts organic and biomass waste into clean electricity as well as hot and chilled water. This combined heating and power system has broad applications for commercial, industrial and institutional use.
See also:
Top 10 Defense Startups
Top 10 Defense Startups
10
Country: USA | Funding: $6.8M
General Atomics develops technology solutions for defense, energy, and transportation applications. The company develops nuclear and alternative energy solutions. They focus on the fundamental theoretical research needed for sustainable alternative technologies.
General Atomics develops technology solutions for defense, energy, and transportation applications. The company develops nuclear and alternative energy solutions. They focus on the fundamental theoretical research needed for sustainable alternative technologies.
11
Country: USA | Funding: $6.3M
Soteria Battery Innovation Group enables portable electric power without the risk of fires, no matter the circumstances.
Soteria Battery Innovation Group enables portable electric power without the risk of fires, no matter the circumstances.
12
Country: USA | Funding: $225K
Influit Energy specializes in nanotechnology, and develops rechargeable, safe, electric fuel for cars and military vehicles.
Influit Energy specializes in nanotechnology, and develops rechargeable, safe, electric fuel for cars and military vehicles.
13
Country: South Korea
Tacticalist develops military precision power bank for rugged outdoors
Tacticalist develops military precision power bank for rugged outdoors
14
Country: Canada
Integer Technologies supports U.S. national security customers by equipping them with innovative technology that provides a new capability. We do this by accelerating the development of scientific research into fielded systems that keep our country safe. Our core capabilities include: power & energy systems; unmanned systems, with an emphasis on maritime systems; digital engineering tools; and advanced composites manufacturing.
Integer Technologies supports U.S. national security customers by equipping them with innovative technology that provides a new capability. We do this by accelerating the development of scientific research into fielded systems that keep our country safe. Our core capabilities include: power & energy systems; unmanned systems, with an emphasis on maritime systems; digital engineering tools; and advanced composites manufacturing.
15
Country: Ukraine
The company specializes in manufacturing batteries with high energy density.
The company specializes in manufacturing batteries with high energy density.
