Get in touchCompact molten salt reactors that run for years without refueling. Choose where you’d use one.
For the Army, Marine Corps and the autonomous systems they will field.
For remote mines, island and Arctic communities, disaster relief and medical isotopes.
Compact molten salt reactors for forward operations. NOMAD powers the command post at the edge. The same reactor goes into the vehicle next.
Store power but do not make it. Every one needs recharging during the fight.
Tie every unit to a fuel supply chain, and both the convoy and the generator become targets.
Power installations that stay behind when the force moves.
MARCHITTO builds compact molten salt fission reactors that deploy forward and run for years without fuel.
A relocatable forward power unit. It moves with the force, then powers a command post, drone teams and sensors on site. 800 kW class design target, up to 8 years between refueling, and it replaces diesel generators and the convoys that feed them.
The same reactor inside an autonomous ground vehicle. Power and range for the systems that fight at the edge, built for an Autonomous Warfare Command. Later platforms follow on land and at sea.
Janus powers the base. We power what leaves it.
In August 2026 the Army selected five vendors for up to $2.2B to own and operate microreactors on bases. The buyer and the authorization path now exist.
On September 30, 2026, the Department of War launched a path to an Autonomous Warfare Command by October 2027. Every platform it fields will need power and range.
Of the 75 small reactor designs in the IAEA’s 2026 catalogue, none is built to go inside a vehicle, and the smallest molten-salt-fueled design is 24 MW electric.
In November 2025, China reported the world’s first thorium-to-uranium-233 conversion inside an operating molten salt reactor. The United States invented this technology at Oak Ridge.
MARCHITTO builds compact molten salt fission reactors, a reactor type first proven at Oak Ridge National Laboratory from 1965 to 1969, engineered to move with the force.
Fuel is dissolved in molten salt at near-atmospheric pressure.
Heat moves out of the fuel loop. The fuel never leaves the capsule.
A compact supercritical CO2 cycle turns heat into electricity.
Handles peak loads and backup, so the reactor runs steady.
Outside threats such as jamming, lost signal or power loss never shut it down. Only a danger inside the reactor does, and every stage works with no power, no signal and no person.
A frozen salt plug melts if the reactor overheats or loses cooling, and the fuel drains by gravity into a tank where the reaction cannot continue.
Near-atmospheric pressure means nothing pushes radioactive material out. Cesium, strontium and iodine are largely retained in the salt, and a spill freezes solid at about 460°C.
An armored shell around the reactor. Design target: the NRC’s accident tests for shipping casks, including a 9-meter drop, a puncture, an 800°C fire for 30 minutes, and submersion.
Patent pending. TRITON safety architecture, US provisional 64/159,470.
The Navy proved its first submarine reactor on land in Idaho before it went to sea. We follow the same path.
Core size, shielding, salt choice and motion tests, all independently reviewed.
Worth on its own: owned IP and a verified design basis.
Build NOMAD and bring it to criticality. Civilian licensing and isotopes begin.
Worth on its own: our first product, powering a command post.
Integrate the proven reactor into APEX and demonstrate it with the Army or Marine Corps.
Worth on its own: a path to a program of record.
Every phase creates value on its own.
Reactor physics, naval and defense engineering, and a founder who built the program before a dollar of outside capital.
Founded MARCHITTO to finish the reactor America invented at Oak Ridge, and to put it where forces and remote communities need power most. Built the company before raising a dollar: two provisional patents filed, three technical white papers written, and a science team assembled with more than 50 years of combined reactor physics and defense experience. Leads strategy, capital and government partnerships. Third-generation defense family; his grandfather, Michael J. Marchitto, earned three Black Hawk rotor safety patents at Sikorsky.
PhD in Nuclear Engineering and Reactor Physics, Technical University of Munich. 14 years in fission and fusion reactor physics. Former Manager of Reactor Physics at AMPERA Inc. and Senior Reactor Physicist at Deep Fission Inc. Expert in MCNP, Serpent and OpenMC.
PhD in Nuclear Engineering (UNM). 40 years in nuclear and defense technology. Led electromagnetic pump design at GE Vernova Hitachi for TerraPower’s Natrium reactor. Defense consulting for Sandia, DARPA and DOE. Author of 39 books. 20-year US Navy veteran.
Operations, contractors, partners and Phase 1 program management. Joining at our seed close.
Names are announced only after agreements are signed.
We are moving our headquarters to the Washington, DC area, close to the defense, policy and national laboratory communities we work with.
Our CEO and Chief Science Architect joined researchers and developers at Oak Ridge National Laboratory’s annual Molten Salt Reactor Workshop.
Filed at the USPTO: the TRITON safety architecture, and compact reactor miniaturization and vehicle integration.
Milestones in your inbox. A few emails a year.
Every message reaches our founder directly.
Accredited investors, get in touch.
joey@marchittoinc.com
Washington, DC area
Compact molten salt reactors that run for years without refueling. Proven first by defense, then licensed to the remote places that run on diesel today.
Remote sites run on fuel that arrives by truck, barge or plane. It is expensive, it pollutes, and it fails exactly when it is needed most.
The national average power price, paid by many remote Alaska communities that run on diesel.
Fuel moves by road, water or air, and every delivery is a cost and a point of failure.
When storms or floods close roads and ports, fuel stops and the power goes with it.
The same reactor defense proves, licensed for the places that need steady power the most.
Steady power for sites far from any grid, without the fuel convoys.
Years of power from one unit, in places where every gallon of diesel is shipped in.
Power that arrives and stays when the grid and the fuel supply are down.
Mo-99 forms in the circulating fuel and can in principle be recovered while the reactor runs. Fixed sites only.
Of US Mo-99 is imported.
Of the world’s Mo-99 supply is used in the US.
US imaging procedures a day rely on it.
Defense funds the hardest engineering. Licensing carries the same reactor to everyone else.
Built and tested under a military program, with independent review at every phase.
Partners pay an upfront fee plus royalties to build and operate it.
Partners license each civilian site with the NRC. Licensing opens once the reactor reaches criticality.
Passed the Senate 88 to 2 and the House 393 to 13 in July 2024, then signed into law to speed up advanced reactors.
The US uses nearly half the world’s Mo-99 and imports all of it. A domestic source is a national priority.
Plentiful and found in the US. Our reactor is designed to turn it into new fuel over time.
In 2025, China became the first to run the thorium fuel cycle in a molten salt reactor, a technology America invented at Oak Ridge.
A reactor type first proven at Oak Ridge National Laboratory from 1965 to 1969. Fuel dissolved in salt, near-atmospheric pressure, and a clear path from HALEU to thorium.
Fuel is dissolved in molten salt at near-atmospheric pressure.
Heat moves out of the fuel loop. The fuel never leaves the capsule.
A compact supercritical CO2 cycle turns heat into electricity.
Handles peak loads and backup, so the reactor runs steady.
A proven fuel keeps the first core simple. Phase 2, about 2029 to 2031.
Thorium starts making new fuel. Phase 3, about 2031 to 2034.
Thorium is plentiful and found in the US. Each generation needs less scarce HALEU. After 2034.
Dates are estimates. In every generation, the fuel stays below weapons-usable levels.
Outside threats such as jamming, lost signal or power loss never shut it down. Only a danger inside the reactor does, and every stage works with no power, no signal and no person.
A frozen salt plug melts if the reactor overheats or loses cooling, and the fuel drains by gravity into a tank where the reaction cannot continue.
Near-atmospheric pressure means nothing pushes radioactive material out. Cesium, strontium and iodine are largely retained in the salt, and a spill freezes solid at about 460°C.
An armored shell around the reactor. Design target: the NRC’s accident tests for shipping casks, including a 9-meter drop, a puncture, an 800°C fire for 30 minutes, and submersion.
Patent pending. TRITON safety architecture, US provisional 64/159,470.
Defense funds the hardest engineering. Commercial licensing opens once the reactor reaches criticality in Phase 2.
Core size, shielding, salt choice and motion tests, all independently reviewed.
Worth on its own: owned IP and a verified design basis.
Build NOMAD and bring it to criticality. Civilian licensing and isotopes begin.
Worth on its own: our first product, powering a command post.
Integrate the proven reactor into APEX and demonstrate it with the Army or Marine Corps.
Worth on its own: a path to a program of record.
Every phase creates value on its own.
Reactor physics, naval and defense engineering, and a founder who built the program before a dollar of outside capital.
Founded MARCHITTO to finish the reactor America invented at Oak Ridge, and to put it where forces and remote communities need power most. Built the company before raising a dollar: two provisional patents filed, three technical white papers written, and a science team assembled with more than 50 years of combined reactor physics and defense experience. Leads strategy, capital and government partnerships. Third-generation defense family; his grandfather, Michael J. Marchitto, earned three Black Hawk rotor safety patents at Sikorsky.
PhD in Nuclear Engineering and Reactor Physics, Technical University of Munich. 14 years in fission and fusion reactor physics. Former Manager of Reactor Physics at AMPERA Inc. and Senior Reactor Physicist at Deep Fission Inc. Expert in MCNP, Serpent and OpenMC.
PhD in Nuclear Engineering (UNM). 40 years in nuclear and defense technology. Led electromagnetic pump design at GE Vernova Hitachi for TerraPower’s Natrium reactor. Defense consulting for Sandia, DARPA and DOE. Author of 39 books. 20-year US Navy veteran.
Operations, contractors, partners and Phase 1 program management. Joining at our seed close.
Names are announced only after agreements are signed.
We are moving our headquarters to the Washington, DC area, close to the defense, policy and national laboratory communities we work with.
Our CEO and Chief Science Architect joined researchers and developers at Oak Ridge National Laboratory’s annual Molten Salt Reactor Workshop.
Filed at the USPTO: the TRITON safety architecture, and compact reactor miniaturization and vehicle integration.
Milestones in your inbox. A few emails a year.
Every message reaches our founder directly.
Accredited investors, get in touch.
joey@marchittoinc.com
Washington, DC area
