Antares valuation, funding and investors
Antares works in modular nuclear microreactor design, based in Torrance, United States. Founded in 2023, it has about 147 employees.
- Last round
- Series C · $470M · Jul 2026
- Valuation at last round
- $2.34B · implied
- Headcount
- 147 · growing
- Grade
- B
- Founded
- 2023
Antares valuation today
VCMC values Antares at $2.5B today, with a range of $1.7B to $4.5B and a grade of B. The valuation starts from its last funding round, a Series C round in Jul 2026.
Valuation by date (50 rows)
Each point is what the model would have shown on that date, using only what was known then; before its first round, a company is valued as a startup because it later raised.
| Date | Valuation | Range | Predicted in 1 yr | Phase | Headcount | Trend | Grade | Winding-down probability |
|---|---|---|---|---|---|---|---|---|
| 1 Jan 2023 | $22.1M | $8.05M – $60.7M | $24.1M (+9%) | before first round | – | unknown | D | 0% |
| 1 Feb 2023 | $22.3M | $8.11M – $61.2M | $24.3M (+9%) | before first round | – | unknown | D | 0% |
| 1 Mar 2023 | $22.4M | $8.16M – $61.6M | $24.5M (+9%) | before first round | – | unknown | D | 0% |
| 1 Apr 2023 | $22.6M | $8.22M – $62.0M | $24.7M (+9%) | before first round | – | unknown | D | 0% |
| 1 May 2023 | $22.8M | $8.28M – $62.5M | $24.8M (+9%) | before first round | – | unknown | D | 0% |
| 1 Jun 2023 | $22.9M | $8.35M – $63.0M | $25.0M (+9%) | before first round | – | unknown | D | 0% |
| 1 Jul 2023 | $23.1M | $8.41M – $63.4M | $25.2M (+9%) | before first round | – | unknown | D | 0% |
| 1 Aug 2023 | $23.3M | $8.47M – $63.9M | $25.2M (+8%) | before first round | – | unknown | D | 0% |
| 1 Sep 2023 | $23.4M | $8.53M – $64.4M | $25.2M (+8%) | before first round | – | unknown | D | 0% |
| 1 Oct 2023 | $23.6M | $8.59M – $64.8M | $25.2M (+7%) | before first round | – | unknown | D | 0% |
| 1 Nov 2023 | $53.4M | $35.0M – $162M | $107M (+100%) | after a round | – | unknown | C | 0% |
| 1 Dec 2023 | $56.6M | $35.0M – $162M | $107M (+89%) | after a round | – | unknown | C | 0% |
| 1 Jan 2024 | $60.0M | $35.0M – $162M | $107M (+78%) | after a round | – | unknown | C | 0% |
| 1 Feb 2024 | $63.6M | $35.0M – $162M | $107M (+68%) | after a round | – | unknown | C | 0% |
| 1 Mar 2024 | $67.2M | $35.0M – $162M | $107M (+59%) | after a round | 10 | unknown | C | 0% |
| 1 Apr 2024 | $71.3M | $35.0M – $162M | $107M (+50%) | after a round | 10 | unknown | C | 0% |
| 1 May 2024 | $75.5M | $35.0M – $162M | $107M (+41%) | after a round | 10 | unknown | C | 0% |
| 1 Jun 2024 | $80.1M | $35.0M – $162M | $107M (+33%) | after a round | 10 | unknown | C | 0% |
| 1 Jul 2024 | $84.7M | $35.0M – $162M | $107M (+26%) | after a round | 10 | unknown | C | 0% |
| 1 Aug 2024 | $101M | $40.8M – $189M | $124M (+23%) | after a round | 20 | growing | C | 0% |
| 1 Sep 2024 | $108M | $40.8M – $189M | $124M (+15%) | after a round | 20 | growing | C | 0% |
| 1 Oct 2024 | $116M | $40.8M – $189M | $124M (+7%) | after a round | 20 | growing | C | 0% |
| 31 Oct 2024 | $151M | $106M – $386M | $272M (+80%) | after a round | 20 | growing | C | 0% |
| 1 Nov 2024 | $152M | $106M – $386M | $272M (+79%) | after a round | 34 | growing | C | 0% |
| 1 Dec 2024 | $159M | $106M – $386M | $272M (+71%) | after a round | 34 | growing | C | 0% |
| 1 Jan 2025 | $167M | $106M – $386M | $272M (+63%) | after a round | 34 | growing | C | 0% |
| 1 Feb 2025 | $176M | $106M – $386M | $272M (+55%) | after a round | 34 | growing | C | 0% |
| 1 Mar 2025 | $184M | $106M – $386M | $272M (+48%) | after a round | 34 | growing | C | 0% |
| 1 Apr 2025 | $193M | $106M – $386M | $272M (+41%) | after a round | 34 | growing | C | 0% |
| 1 May 2025 | $203M | $106M – $386M | $272M (+34%) | after a round | 34 | growing | C | 0% |
| 1 Jun 2025 | $213M | $106M – $386M | $272M (+28%) | after a round | 34 | growing | C | 0% |
| 1 Jul 2025 | $224M | $106M – $386M | $272M (+22%) | after a round | 34 | growing | C | 0% |
| 1 Aug 2025 | $254M | $118M – $427M | $301M (+19%) | after a round | 54 | growing | C | 0% |
| 1 Sep 2025 | $269M | $118M – $427M | $301M (+12%) | after a round | 54 | growing | C | 0% |
| 1 Oct 2025 | $285M | $118M – $427M | $301M (+6%) | after a round | 54 | growing | C | 0% |
| 1 Nov 2025 | $317M | $124M – $450M | $317M (0%) | after a round | 68 | growing | C | 0% |
| 1 Dec 2025 | $317M | $126M – $450M | $317M (0%) | after a round | 68 | growing | C | 0% |
| 3 Dec 2025 | $537M | $378M – $1.1B | $804M (+50%) | after a round | 68 | growing | B | 0% |
| 1 Jan 2026 | $554M | $378M – $1.1B | $804M (+45%) | after a round | 68 | growing | B | 0% |
| 1 Feb 2026 | $574M | $378M – $1.1B | $804M (+40%) | after a round | 68 | growing | B | 0% |
| 1 Mar 2026 | $592M | $378M – $1.1B | $804M (+36%) | after a round | 68 | growing | B | 0% |
| 1 Apr 2026 | $629M | $409M – $1.2B | $870M (+38%) | after a round | 97 | growing | B | 0% |
| 1 May 2026 | $659M | $416M – $1.3B | $885M (+34%) | after a round | 105 | growing | B | 0% |
| 1 Jun 2026 | $687M | $416M – $1.3B | $885M (+29%) | after a round | 105 | growing | B | 0% |
| 1 Jul 2026 | $716M | $416M – $1.3B | $885M (+24%) | after a round | 105 | growing | B | 0% |
| 28 Jul 2026 | $2.3B | $1.6B – $4.3B | $3.0B (+30%) | after a round | 124 | growing | B | 0% |
| 1 Aug 2026 | $2.3B | $1.6B – $4.3B | $3.0B (+30%) | after a round | 124 | growing | B | 0% |
| 1 Sep 2026 | $2.4B | $1.6B – $4.3B | $3.0B (+27%) | after a round | 124 | growing | B | 0% |
| 1 Oct 2026 | $2.5B | $1.7B – $4.5B | $3.2B (+28%) | after a round | 147 | growing | B | 0% |
| 24 Oct 2026 | $2.5B | $1.7B – $4.5B | $3.2B (+25%) | after a round | 147 | growing | B | 0% |
Key facts about Antares
- Founded
- 2023
- Headquarters
- Torrance, United States
- Employees
- about 147 +116% in a year
- Total raised
- $604M
- Funding rounds
- 4
- Last round
- Series C Jul 2026
Antares was founded in 2023 by Jordan Bramble and Julia DeWahl.
Antares funding history
Antares has 4 funding rounds on record, from Oct 2023 to Jul 2026, $604M in total. None disclosed a valuation.
Series C 27 Jul 2026
Led by Paradigm, Caffeinated; with Point72 Ventures, Shine Capital, Industrious Ventures.
Sources: finsmes.com, finance.yahoo.com, nucnet.org and 3 more
$470M
Series B 2 Dec 2025
Led by Shine Capital; with Alt Capital, Caffeinated, 53 Stations, Industrious Ventures.
Sources: antaresindustries.com, businesswire.com
$96M
Series A 30 Oct 2024
Led by Alt Cap, Caffeinated; with Rogue, Uncommon Capital, Shrug, Banter Capital, BoxGroup, Shine Capital.
Sources: antaresindustries.com, maginative.com
$30M
Seed 31 Oct 2023
With Caffeinated, Humba Ventures, Pathbreaker Ventures, Rogue VC, Shrug Capital, Uncommon Capital, Susa Ventures. Individuals: angels.
Sources: antaresindustries.com, ventureatlas.org, growthstudio.crowell.com
$8.0M
Antares investors
18 investors have backed Antares; Caffeinated, Shine Capital and Alt Cap and 1 more led at least one round.
- Caffeinated lead, 4 rounds
- Alt Cap lead
- Paradigm lead
- Uncommon Capital 2 rounds
- Alt Capital
- Banter Capital
- BoxGroup
- Humba Ventures
- Pathbreaker Ventures
- Point72 Ventures
- Rogue
- Rogue VC
- Shrug
- Shrug Capital
What Antares does
Antares works in electronical components manufacturing, with 15 recorded offerings and customers in defense, space and underwater.
Antares Nuclear, Inc. is a U.S. company engaged in the design, manufacturing, and deployment of factory-produced, deployable fission microreactors for strategic energy applications in Earth, space, and underwater environments. The company develops modular power systems for mission-critical systems, with a focus on defense-critical assets and strategic energy sectors. Antares also operates a vertically integrated research and development facility and is involved in the fabrication of nuclear-grade graphite and the development of control systems and thermal management solutions. The company is certified for nuclear safety design and has received approval for a reactor in the U.S.
Description from Veridion's company data.
Products and services
- Modular Nuclear Microreactor Design
- Modular Nuclear Microreactor Manufacturing
- Modular Nuclear Microreactor Deployment
- Advanced Reactor Technology Development
- Nuclear Reactor Safety Certification
- Nuclear Fuel Fabrication
- Nuclear Reactor Thermal Management Solutions
- Nuclear Reactor Control Systems Engineering
- Precision Nuclear-Grade Graphite Machining
- Deployable Power System Manufacturing
- Strategic Energy Solutions for Mission-Critical Systems
- Space and Underwater Power Solutions
- Defense-Critical Energy System Solutions
- Advanced Reactor Demonstration and Validation
- Nuclear Reactor Research and Development
Markets
- Defense
- Space
- Underwater
Technology
- Fission Microreactor Technology
- Graphite Machining for Nuclear-Grade Precision
- Sodium Heat Pipes for Thermal Management
- Nitrogen Brayton Cycle for Power Generation
- TRISO Coated Particle Fuel for Reactivity Control
- Integrated Shielding and Transport Cradles for Reactor Safety
Supply chain
- Vertically Integrated Supply Chain
Business model
- Business-to-Business
- Manufacturing
- Enterprise
Industry codes (NAICS)
- 332410 Power Boiler and Heat Exchanger Manufacturing 75% match
- 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 25% match
Questions about Antares
What is Antares worth?
Valuation $2.5B (range $1.7B to $4.5B), as of 24 Oct 2026.
Has Antares raised money?
Antares has 4 funding rounds on record, from Oct 2023 to Jul 2026, $604M in total. None disclosed a valuation.
Who has invested in Antares?
Caffeinated, Shine Capital, Alt Cap, Paradigm, Industrious Ventures and Uncommon Capital, and 12 more. Lead investors include Caffeinated, Shine Capital, Alt Cap and Paradigm.
How many people work at Antares?
About 147, up 116% over the last year. Headcount grew from 10 in Mar 2024 to 147 in Sep 2026.
What does Antares do?
Antares works in electronical components manufacturing, with 15 recorded offerings and customers in defense, space and underwater. Its main offerings are modular nuclear microreactor design, modular nuclear microreactor manufacturing and modular nuclear microreactor deployment.
When was Antares founded, and where is it based?
Antares was founded in 2023 and is based in Torrance, United States. It has about 147 employees, up 116% over the last year.