Companies / org-antares
Antares Nuclear
Developer of the Mark-0 test reactor. DOE reported a zero-power fueled criticality demonstration at INL on 4 Jun 2026.
- Roles
- Reactor developer, Vendor
- Organization type
- vendor
- Country
- United States
- Aliases
- —
- Listing status
- Unknown
- Exchange / ticker
- —
- Ownership / control
- unknown
Listing and control were not re-verified from a securities filing in this pass. - Website
- —
- Confidence
- medium
- Last verified
- 2026-10-01
Linked designs
- Antares Mark-0 — Other · Microreactor
Tracked deployment projects
- Antares Mark-0 at Idaho National Laboratory — Commissioning · United States
Ownership & relationships
- No dated parent/JV relationships recorded beyond ownership notes.
Milestones
- None recorded in this release.
Unresolved information
- None noted.
Sources
- DOE: first advanced reactor criticality, Antares Mark-0 (government_primary, accessed 2026-10-01)
- DOE EM note on four Reactor Pilot criticality reviews (government_primary, accessed 2026-10-01)