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Antares

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Military-grade microreactors offering resilient, autonomous energy solutions for remote and space applications

Los Angeles, United StatesFounded 2023Space
Valuation $1–2.5B Last recorded · 2026
Revenue $1–10M Latest reported FY
Headcount 100–500 Current team size
Total funding $500M–1B Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Antares and the history behind them.

About Antares

Antares Industries specializes in the development and deployment of advanced microreactors designed for both terrestrial and space applications. Their flagship product, the Antares R1, is a military-grade, rapidly deployable microreactor that provides continuous energy without the need for a sustaining supply chain for up to three years. The R1 reactor is engineered for transportability, resilience, and autonomy, fitting on standard military cargo platforms such as 463L pallets or CONEX containers. It features advanced shielding materials like tungsten, titanium carbide, and boron carbide to minimize exclusion zones and expedite deployment. The reactor employs sodium heat pipes for passive and redundant heat removal, ensuring high reliability without moving parts. Automated control systems and boron carbide shutdown rods, derived from space reactor technology, manage reactivity. The core utilizes HALEU TRISO fuel and a graphite moderator, encapsulating each fuel particle in silicon carbide for enhanced safety. The low-pressure closed nitrogen Brayton cycle further maximizes reliability and minimizes maintenance, making the R1 suitable for austere and remote environments. Antares Industries serves military and space agencies, offering a robust energy solution that operates autonomously with minimal specialized workforce requirements.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2023
Headquarters
Los Angeles, United States
Employees
110
Open positions
25
Dealroom signal
94.7/100
Sub-industry
Clean Energy
Sector
Space, Nuclear, Sustainable Development Goals, Nuclear Fission, Space Tech, Climate Tech, Space Utilities, Space Upstream, NIF defense security and resilience, NIF Energy Security and Climate Change
Technology
Hardware, Deep Tech
Business model
Manufacturing
Client focus
b2b

Funding history

4 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
LATE VCOther financing Dec 2025 $0 — Balerion Space Ventures ↗
DEBTDebt Dec 2025 $25M — Undisclosed ↗
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Financials

Revenue over time

Revenue, earnings and other financial measures where available. Years marked “E” are estimates.

YearRevenueGrowth
2026
2025
2024 —
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Growth signals

Antares website traffic

Latest recorded traffic for Antares is 22K monthly website visits, up 189.5% over the last three months. Antares's team grew 52.8% over the past year.

Latest monthly visits22K 3-month web change+189.5% 1-year team growth+52.8%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

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Showing 8 of the closest matchesCompare every metric →

Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

6 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A5 investors entered at this stage

Series B and later1 investor entered at this stage

  • Balerion Space Ventures
Team profiled 4 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 2 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
4 countries with
team presence
🇺🇸 United States95.8%
🇱🇰 Sri Lanka1.4%
🇨🇴 Colombia1.4%
🇩🇿 Algeria1.4%
4 countries shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Antares on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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