reactor design and manufacturing

Antares Nuclear, Inc. designs and manufactures modular, transportable fission microreactors for strategic energy applications on Earth, in space, and underwater. Its reactors provide 100kWe to 1MWe for 6+ years and use TRISO coated particle fuel in a prismatic graphite core, sodium heat pipes, and a recuperated N2 closed Brayton cycle. The company completed its Conceptual Design Review and received an approved Nuclear Safety Design Agreement in 2025, and conducted its first reactor demonstration at Idaho National Laboratory in 2026.

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design, build, and test of automated control systemshardware-in-the-loop digital twinsheat pipe and thermal management developmentprecision machining of nuclear-grade graphite

CompRex, LLC designs and manufactures custom compact heat exchangers and heat exchanger reactors for extremely high temperature and/or high pressure conditions, including diffusion bonded compact heat exchangers, high temperature filters, and diffusion bonding services. The company also offers wastewater treatment with PFAS removal via supercritical water oxidation, catalyst evaluation, and custom diffusion bonded 3D structures.

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catalyst evaluationcompact heat exchanger design and manufacturingdiffusion bondingjoining dissimilar metalsmicro-channel/3D channel designR&Dvacuum brazing