Antares Nuclear, Inc.
- Sector
- Defense
- Headquarters
- Torrance, CA
- Founded
- 2023
- Latest Form D
- $60M, Aug 2026
- Total capital
- $153M
- Federal grants
- $5.9M
- 7 awards · 2023–2026
- 3.5× sector median 2 awards
- Private capital raised
- $147M
- 4 Form D · last Aug 2026
- 2 months since last filing
- Federal contracts
- None on recordNo federal contract awards found.
- Granted patents
- None on recordNo USPTO grants. Applications publish after 18 months.
Capital timeline
Latest events
- Federal grantNASA · Phase II · Nasa's 2025 SBIR Phase II$1.2M
- Private capital raisedForm D · SEC · 4th filing$60M
- Federal grantNASA · Phase I · SBIR I High Temperature Radiator Coating$148K
- Private capital raisedForm D · SEC · 3rd filing$51M
- Federal grantDefense · Phase II · Space-based Neutral Particle Beam System$1.2M
- Private capital raisedForm D · SEC · 2nd filing$27.5M
- Federal grantDefense · Phase II · Nuclear Systems For High Power Space Applications$1.2M
- Private capital raisedForm D · SEC · 1st filing$8.1M
Show 3 earlier federal awards
- Federal grantDefense · Phase II · Rapidly Deployable Microreactor For Department Of Air Force Use-cases$1.2M
- Federal grantDefense · Phase II · Under The Effort, The Contractor Shall Conduct Research And Development Activities In Support Of Required Deliverables Noted Under The Work Plan, Incorporated As Attachment 01, Under Section J Of This Contract.$719K
- Federal grantDefense · Phase I · Rapidly Deployable Microreactors For Daf Use-cases$75K
Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.
Standing in Defense · 1442 companies
Line = median- Federal contractsBelow median
Cumulative measures favor older companies. Rankings describe position today, not outcome. Below the median, ranks show as a band rather than a number.
Founders and team
From SEC Form D filings- Alexander HartzDirectorNamed in SEC Form D filings
- Jack AltmanDirectorNamed in SEC Form D filings
- Jordan BrambleExecutive Officer, Director, PromoterNamed in SEC Form D filings
- Julia DeWahlExecutive Officer, Director, PromoterNamed in SEC Form D filings
What it has protected
No granted patents are on record.
USPTO usually publishes applications 18 months after filing, so recent applications may not be visible yet. Patents assigned under a different entity name won’t match.
Checked: USPTO granted patents and published applications · Oct 23, 2026
Related companies, and why
- Twin Prime AI, Inc.Similar federal contract value in Defense · null in contracts
- LONGPATH TECHNOLOGIES, INC.Similar federal contract value in Defense · null in contracts
- Instant Connect Holdings CorpSimilar federal contract value in Defense · null in contracts
- Auv LLCSimilar federal contract value in Defense · null in contracts
- Alakai Defense Systems, Inc.Similar federal contract value in Defense · null in contracts
- Atomos Nuclear & Space CorpSimilar federal contract value in Defense · null in contracts
Regulatory activity · Defense
- Danger Zone; Waters of Carr Creek and Whitehall Bay in the Vicinity of the Naval Support Activity AnnapolisEngineers Corps
- Federal Acquisition Regulation; Federal Acquisition Circular 2026-01; IntroductionNational Aeronautics and Space Administration
- Federal Acquisition Regulation: Trade Agreements ThresholdsNational Aeronautics and Space Administration
- Federal Acquisition Regulation; Federal Acquisition Circular 2026-01; Small Entity Compliance GuideNational Aeronautics and Space Administration
- Federal Acquisition Regulation; Federal Acquisition Circular 2025-06; Small Entity Compliance GuideNational Aeronautics and Space Administration
- Federal Acquisition Regulation; Federal Acquisition Circular 2025-06; IntroductionNational Aeronautics and Space Administration
Rules are matched to sector, not to company. Recent activity in a sector is context rather than a signal about this business — until rules are matched to what a company actually builds, the section is shown as context and nothing more.
Sources
Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.
How to read this page
Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.
Data freshness
SEC Form D filings through . SBIR and STTR awards through .