Los Alamos, New Mexico

Chain Reactions
Start Here.

We design, simulate, build, and test first-of-a-kind micro- and space-reactors, for Earth and beyond.

The engineering brains behind the nation's reactors.
Heritage Across
10+
Reactor Designs in Portfolio
3
Mission Classes, One Platform
25+
First-of-a-Kind Designs
15+
Active R&D Programs
CRISP
Integrated 4D Platform
How We Build Reactors

One Company. The Whole Reactor Stack.

You can't build a reactor without all three: simulation, materials, and hardware. We own the entire stack in-house, from first concept to full-power test.

01 · Software

Simulation & Design

CRISP, our in-house platform: coupled multiphysics, criticality safety, and AI-accelerated design search across every reactor type.

02 · Materials

Materials & Fuels

Advanced materials, fuels, and moderators engineered in-house to make the core lighter, tougher, and transport-ready.

03 · Hardware

Fabrication & Test

Precision machining, brazing & welding, and high-temperature, ultra-high-vacuum testing, to full-power.

Compact space reactor
The Bridge · Dual-Use Core

One Core. Earth or Orbit.

A single launch-safe core: silent power for a remote or forward operating site today, a lunar outpost tomorrow. The dual-use core at the heart of our portfolio.

See the Portfolio

Reactor Portfolio

One Platform.
Every Mission.

Ten-plus designs built from one shared foundation of materials, fuels, and modules, with more than twenty-five in house. The same compact core that powers a forward base can power a lunar outpost.

View All Reactors

Reactor core with control drums sweeping back and forth
Signature Platform

CRISP: Model a Reactor End-to-End

Couples 30+ physics from material data to accident, launch, and transport in one automated pass. Real, benchmarked solvers and convergence-checked results, not slideware.

Explore the Platform

Proven · National Programs

The Brains Behind the Nation's Reactors

We don't just propose reactors. Our team authors first-of-a-kind designs and takes new-physics hardware to full power, across the agencies that lead American nuclear.

Constructed FOAK reactor software and hardware
DOE · NASA · DoW
Authored space power & propulsion designs
NASA · DOE
Critical experiments & criticality-safety milestones
DOE · DoW · NASA
Multiphysics platform behind national reactors
DOE · NASA

Let's Build the Reactors That Power Earth and Space.

Reactor design, multiphysics simulation, materials research, or specialized fabrication, terrestrial or space.