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Astral Systems

Astral Systems

Private
BristolHealthcare & Life Scienceshttps://www.astralsystems.com/

Last Round

Series A

Jun 23, 2026

Est. Valuation

$83.2M

Total Funding Raised

$35.87M

Momentum

Top 1%

of companies Caplight tracks

Company Overview

Astral Systems is a nuclear energy company that develops and commercializes compact, multi-state fusion (MSF) reactors for on-demand neutron production with applications in medical isotope production, research, and energy.

Sector

Healthcare & Life Sciences

Verticals

Biotech Equipment, Pharma Supply Chain

Business Model

B2B

Customer Profile

Hardware Sales, Government Contracts, Services & Consulting, Data as a Service

AI Layer

Non-AI

Keywords

multi-state fusioncompact fusion reactormedical isotope productionnuclear medicineneutron sourcedecentralized isotope productionradiopharmaceuticalssmall fusion reactorpharma supply chainfusion technologyneutron irradiationbenchtop fusionfusion reactor testbeddeep techfusion energy

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Caplight Momentum Score

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Astral Systems Comparables

Compare Astral Systems with similar companies based on industry and business-model similarity.

Astral Systems comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Nusano
77%
Ionetix
76%
SHINE Technologies
74%

Astral Systems Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series AJun 23, 2026
SeedFeb 6, 2025

Key People

Founding team and executive leadership

Talmon Firestone

Chief Executive Officer, Co-Founder

Founding Team

Tom Wallace-Smith

Chief Technology Officer

Executive Team

Astral Systems Investors

Notable investors and investment history

Astral Systems investors
InvestorRounds
Playfair CapitalSeries A, Seed
Blast.clubSeries A
Cambridge AngelsSeed
DaphniSeries A
SpeedinvestSeries A, Seed
Silicon Roundabout VenturesSeed
Avonmore DevelopmentsSeed

Market signals

Structured signals derived from secondary market and firmographic data.

  • Aug 1, 2026

    Grew 62% QoQ, from 29 to 47 employees.

  • Jul 26, 2026

    Monthly visitors grew 69% MoM, reaching 4.2K.

Astral Systems Filings

SEC and related filings with document metadata.

Data table
TypedDateAmount OfferedAmount SoldFillingPagesDownload
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Astral Systems Filings

SEC and related filings with document metadata.

Frequently Asked Questions

Common questions about Astral Systems's valuation, stock price, and market status.

Firmographic Details

HeadquartersBristol
Employee Range47
Year Founded2021
Last FundingJun 23, 2026

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