Astral Systems
PrivateLast Round
Series A
Jun 23, 2026
Est. Valuation
$83.2M
Total Funding Raised
$35.87M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
Astral Systems operates in Energy & Sustainability and is based in Bristol. Its latest recorded funding round was a Series A round in June 2026.
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
Energy & Sustainability
Verticals
Biotech Equipment, Medical Imaging, Renewable Energy, Pharma Supply Chain
Business Model
B2B
Customer Profile
Hardware Sales, Government Contracts, Services & Consulting, Data as a Service
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Astral Systems Comparables
Compare Astral Systems with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| StandardX | 78% | |
| Nusano | 77% | |
| Ionetix | 76% |
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Astral Systems Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A | Jun 23, 2026 | ||||
| Seed | Feb 6, 2025 |
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Key People
Founding team and executive leadership
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Astral Systems Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Playfair Capital | Series A, Seed |
| Blast.club | Series A |
| Cambridge Angels | Seed |
| Daphni | Series A |
| Speedinvest | Series A, Seed |
| Silicon Roundabout Ventures | Seed |
| Avonmore Developments | Seed |
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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.
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Astral Systems Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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Frequently Asked Questions
Common questions about Astral Systems's valuation, stock price, and market status.
Is Astral Systems a public or private company?
Astral Systems is a private company.
What is the current stock price of Astral Systems?
Astral Systems is a private company, so its shares have no public market price. Caplight tracks Astral Systems's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Astral Systems worth (valuation)?
Astral Systems's valuation is estimated at $83.2M based on funding round data.
Can I buy Astral Systems stock?
Astral Systems shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Astral Systems's last funding round?
Astral Systems's most recent funding round was Series A on June 23, 2026.
Who are the main investors in Astral Systems?
Key investors in Astral Systems include Playfair Capital, Speedinvest, Mercia Asset Management, Mercia Ventures.
Will Astral Systems IPO soon?
No public IPO plans have been announced for Astral Systems.
How can I track Astral Systems secondary market activity?
Caplight tracks bids, offers, and trades in Astral Systems's shares on secondary markets.