Raised
Private and public equity. Never added to federal money.
Radiant Industries
Developer of the Kaleidos experiment conditionally selected for testing in the DOME facility.
Deployment stage3 / 8Development
Race position
Megawatts at their strongest documented state, as of 2026-08-06.
DesignKaleidos
Per unit1 MWe
LaneMicroreactor
ListingPrivate
About 3 MWt.
Contracted · 1 MWe
One gigawatt is 1000 × 1 MWe units. 1 MWe rest on an executed action, 0% of the way there.
Why this company is on the board: Signed delivery agreement with the Defense Innovation Unit and the Department of the Air Force. Source ↗
Funding
Three frames, never added together.
Awarded
Federal awards and cost share. A ceiling, not cash received.
No awarded money on record.
Borrowed
Debt, repayable. Never counted as a raise, federal or private.
No borrowed money on record.
Filed, not raised
A registration filed with the SEC. The filing itself raises nothing.
No filed, not raised money on record.
Cash on hand
A balance, not a raise. Reported by the company at a stated date.
No reported cash position on record.
Licensing
Applications, permits and authorizations, naming the authority in each case.
- 2026-02DOE approved the Kaleidos preliminary documented safety analysis for the DOME testPermit / authorization · Company-reportedSource ↗
Physical progress
Work at a site. Criticalities are proof the physics works, not electricity.
- 2026-07First TRISO fuel shipment received at the DOME facility, INL; criticality not confirmed as of 2026-08-05Fuel milestone · Company-reportedSource ↗
Program selections and agreements
Being chosen for a program, or signing one. Neither is a permit nor work at a site.
Nothing on record in this lane as of 2026-08-06.
Design proof outside the U.S.
Real progress on the same design abroad. Contributes 0 MWe to the U.S. race.
Nothing on record in this lane as of 2026-08-06.
Pipeline
Executed first. Announcements are labeled as announcements and never added to them.
Backed by an executed action
- 2025-081 MWe · ContractedDefense Innovation Unit and Department of the Air Force · delivery agreement signed 2025-08-14; base not yet assigned · Press-reportedSource ↗
Announced, non-binding
No announced pipeline on record as of 2026-08-06.
Company-stated targets
What the company says, printed beside what a regulator has documented. The site never averages a target into a prediction.
- Date not statedFactory-scale manufacturing and first customer deliveries beginning 2028Documented state today: Contracted · 1 MWe · Press-reportedTarget source ↗
TechnologyGas-cooled microreactor
Reactor classesGen IV · Microreactor
Tracked projects2
Highest deployment stage3 · Development
Primary sourceDOE DOME program ↗
Projects and next steps
2 trackedIdaho National Laboratory
Kaleidos · DOME test
CurrentDOE conditionally selected Kaleidos for an initial DOME test slot.
Next stepSatisfy readiness gates, complete authorization, install the experiment, and conduct testing.Idaho National LaboratoryKaleidos + RiPPer pilot
CurrentDOE identified both reactors and their INL site in its contractor variance package.
Next stepComplete DOE authorization and readiness gates for construction, fuel loading, and critical testing.