Antares Nuclear key facts
as of Oct 2026- Manufacturer of a transportable microreactor intended to provide reliable power in remote or austere environments.
- Antares Nuclear is valued at approximately $279.9M as of Oct 2026, set at its Series B, Dec 2025; nothing has traded since, per PrivateMarketView’s mark.
- It has raised $604.1M across 4 recorded rounds; the latest was Series C ($470.0M) in Jul 2026.
- Notable investors include BoxGroup, Caffeinated Capital, Point72 Ventures, Shrug Capital, Republic Capital — 31 tracked in total.
- 1 investment vehicle was formed to buy Antares Nuclear shares in the last 12 months, reporting $105K sold to 1 investors, per SEC Form D filings.
- Antares Nuclear has filed 3 Form Ds with the SEC since 2023, most recently Sep 2025 ($51.0M sold to 31 investors).
- Status: Privately Held (backing).
Valued at $279.9M at its Series B, Dec 2025. Nothing has traded since.
- ·Post-money valuations for 3 rounds
- ·The complete investor list: 31 names
- ·Watch Antares Nuclear: the Monday email on marks, rounds and moves
Antares Nuclear funding rounds
4 roundsVehicles formed to buy Antares Nuclear shares
secondary demand · SEC Form D filingsIn the last 12 months, 1 investment vehicle were formed to buy Antares Nuclear shares, reporting $105K sold to 1 investors. Most recent filing Dec 2025.
Membership and data by Private Market View
Antares Nuclear leadership
- Jordan BrambleCo-Founder, Chief Executive Officer & Board Member
- Julia DeWahlCo-Founder, President & Board Member
- Alex RomaniolisChief Financial Officer
Who backs Antares Nuclear
31+Antares Nuclear valuation
Antares Nuclear was valued at $280 million at its Series B in Dec 2025. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.
Recent activity
In the last 90 days, Antares Nuclear's record added 1 funding round.
How much has Antares Nuclear raised?
Antares Nuclear has raised $604 million across 4 recorded rounds since 2023. The largest was a $96 million Series B in Dec 2025; the most recent was a $470 million Series C in Jul 2026. 3 of the rounds disclosed a post-money valuation.
Antares Nuclear has filed 3 Form Ds with the SEC since 2023, most recently in Sep 2025 ($51 million sold to 31 investors).
Institutional holders and vehicles
In the last 12 months, 1 investment vehicle was formed to buy Antares Nuclear shares, reporting $104,504 sold to 1 investor, per SEC Form D filings (most recent Dec 2025).
Antares Nuclear investors
31 investors are on record for Antares Nuclear, including BoxGroup, Caffeinated Capital, Point72 Ventures and Shrug Capital. By type, the record holds 10 venture capital firms. The Series C in Jul 2026 drew 5 investors.
Who runs Antares Nuclear
5 people are listed on the Antares Nuclear team: 3 executives and 2 board members, including Jordan Bramble (Co-Founder) and Julia DeWahl (Co-Founder). 4 of them have a verified direct contact on file.
About Antares Nuclear
Manufacturer of a transportable microreactor intended to provide reliable power in remote or austere environments. The company designs and builds microreactors for critical infrastructure, defense, and space applications, enabling clients to deploy resilient energy systems with minimal maintenance.
- Sector
- Business Products and Services (B2B)
- HQ
- Redondo Beach, CA, United States
- Founded
- 2023
- Employees
- 128
- Website
- antaresindustries.com/
- Ownership
- Privately Held (backing)
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