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Antares Industries develops the R1 modular nuclear microreactor for remote and space-based power, holding contracts with Space Force, DIU, and NASA.
ACTIVENuclear fission company developing compact microreactors for defense and space applications. Its R1 microreactor is designed to produce 100 kW to 1 MW of electricity, and it has contracts with the U.S. Air Force, U.S. Space Force, NASA and the Defense Innovation Unit.
Nuclear fission company developing compact microreactors for defense and space applications. Its R1 microreactor is designed to produce 100 kW to 1 MW of electricity, and it has contracts with the U.S. Air Force, U.S. Space Force, NASA and the Defense Innovation Unit.
Not ranked: Only 44% of applicable weight is backed by data; 50% is needed to rank.
2 of 6 inputs measured · Insufficient data · 44% of applicable weight backed by data
Not measured: Headcount, Market value, Reported revenue
Not measured: Open-role change (90 days)
A pillar score averages the company’s percentiles among the tracked companies with a value: relative standing, not a grade. Inputs measured 2026-10-13 (UTC) · methodology v6. Every input, its value and percentile · How it is computed
The Space Score ranks companies relative to each other on public data we hold. It describes; it does not rate, forecast or recommend. It is not a credit rating and not investment advice. Full disclaimer
Sources: Founded, Headquarters
For information only, not investment advice. SpaceNexus is not a registered investment adviser, broker or dealer, and nothing here is a recommendation to buy, sell or hold any security. Data may be delayed, estimated or incomplete; check the source before acting. Full disclaimer
4 private rounds on record. Debt, grants, state capital, owner funding and acquisitions are listed under Funding history by class and not added in.
Checking for a discussion…
Compiled Oct 13, 2026 from 4 public records. Every figure links the record it comes from.
Sourced rounds on record
4 rounds, $479.0M disclosed
Every round has a disclosed amount
Published rounds with a source link only, on the same rules as the funding tracker. Each round links the source that states its figure; amounts in other currencies are converted to dollars at the rate shown on the funding tracker.
Recorded as lead of Series B (Dec 2, 2025)
TechCrunch, Dec 2, 2025
APA
SpaceNexus. (2026, October 13). Antares Industries: Company dossier [Data set]. Retrieved October 13, 2026, from https://spacenexus.us/company-profiles/antares-industries
Chicago
SpaceNexus. "Antares Industries: Company dossier." Data as of October 13, 2026. Accessed October 13, 2026. https://spacenexus.us/company-profiles/antares-industries.
BibTeX
@misc{spacenexus_antaresindustries_2026,
author = {{SpaceNexus}},
title = {{Antares Industries}: Company dossier},
year = {2026},
month = oct,
howpublished = {\url{https://spacenexus.us/company-profiles/antares-industries}},
url = {https://spacenexus.us/company-profiles/antares-industries},
urldate = {2026-10-13},
note = {Data as of 2026-10-13; each fact links its primary source}
}