Antares Nuclear

Intelligence Summary: Antares Nuclear

Node Identity: Antares Nuclear (also "Antares Industries") is a microreactor company founded in 2023 by Jordan Bramble and Julia DeWahl, headquartered in Los Angeles, California (offices in Torrance, Redondo Beach, Idaho Falls, Aiken). The company has raised $470M+ (Series C: $370M equity + $100M debt) to build factory-produced fission microreactors. With approximately 100 employees and a 322,000 sq-ft vertically integrated R&D/manufacturing facility ("Antares Prime" in Torrance), Antares has strategically diversified from civilian nuclear power into defense directed energy weapons via an AFRL SBIR Phase II contract for a "Space-Based Neutral Particle Beam System."

Strategic Relevance: Antares Nuclear represents the most credible path to operational space-based Neutral Particle Beam (NPB) weapons since the 1989 SDI BEAR experiment. The AFRL SBIR Phase II contract (FA8649-25-P0444, $1.23M) specifies a compact, continuous-wave, low-power (<20 kW) NPB system for space operations that will "apply non-kinetic, surface-level effects to degrade or disable adversary spacecraft without generating debris" and "incapacitate adversary electronics by ionization or localized heating." The system is designed to be compatible with rideshare-class vehicles — meaning it is small enough to fly on a secondary payload. Antares' R1 microreactor (200 kW-1 MW) is explicitly designed to power "defensive directed energy systems" in space, creating an integrated power+weapon package for orbital deployment.

Technical Focus / Capabilities: The Antares R1 microreactor uses TRISO/ISO fuel particles in a graphite core with sodium heat pipes and a closed nitrogen Brayton cycle, providing 200 kW-1 MW electric with a 6+ year refueling interval. The NPB system leverages Antares' nuclear expertise: the R1 microreactor can power the particle accelerator, and the compact form factor enables rideshare deployment. Eos Atomics (Aerofuse, Inc.) was subcontracted to develop the NPB hardware prototype under a December 2024 agreement, building a work center inside Antares' Torrance facility before Antares terminated the agreement in May 2026. The NPB technology base is directly inherited from SDI/BEAR — Michael Toole, former SDIO Particle Beam Program Manager, authored "The Guardian: A Space-Based Neutral Particle Beam" (2024) advocating NPB revival for Golden Dome.

Network Linkage: Antares connects to: AFRL (SBIR Phase II funder for NPB system), Eos Atomics/Aerofuse (subcontracted NPB hardware developer, terminated May 2026), DIU/NAPP (Ryan Weed's program established the fusion-for-defense precedent), Golden Dome (2028 DE demonstration timeline), the SDI/BEAR lineage (1989 NPB space experiment predecessor), Digibeam (parallel particle beam vendor), and the broader space-based directed energy weapons ecosystem. The R1 microreactor + NPB combination creates an integrated power-and-weapon system for orbital deployment.

Batches 5-10 Update (2026-08-18): The Congressional Lineage Resolved

The "Antares" budget line identified (R184/R187): The FY26 congressional restoration of Air Force PE 0603605F ("Advanced Weapons Technology", AFRL) — +$12.4M at conference level, absent from both chamber reports — was publicly announced by Rep. James Clyburn (SC-06, 2026-01-22) as "Antares – Special Purpose Power Generation for Novel Effectors – Savannah River Site." The FY27 HAC-D markup (H.Rept. 119-715) proposes a +$22.3M continuation, now anonymized in report language.

The executing channel (R187/R194): SRNL–Antares CRADA signed 2024-09-03 covering "resilient power to critical U.S. infrastructure and special purpose applications"; Antares joined SRNL's DOE-EM-funded Advanced Manufacturing Collaborative (Aiken, opened 2025-08-07) and opened an Aiken office 2026-04-24. OPACITY TRACE: USAspending shows zero DAF-funded obligations to the SRS M&O and zero awards mentioning "special purpose power generation" — the money moves via the CRADA/task-order channel, invisible to obligation screens (CRADA-in-M&O / $0-OTA / Economy-Act / R-1 anonymization mechanisms).

Defense expansion confirmed: NEPADSO award FA945326CX009 ($4.2M, 2026-01-30, AFRL RVK Kirtland); ANPI (DAF/DIU "Advanced Nuclear Power for Installations") paired Antares with Joint Base San Antonio (2026-04-22).

Civilian milestone: Mark-0 microreactor first criticality at INL, 2026-06-04 — first private non-LWR criticality in 40+ years (DOE Reactor Pilot Program).