Nucleon Security
PrivateLast Round
Seed
Sep 9, 2025
Total Funding Raised
$3.5M
Company Overview
Nucleon Security operates in Cybersecurity and is based in Paris. Its latest recorded funding round was a Seed round in September 2025.
Nucleon Security is a cybersecurity company that provides an AI-powered endpoint detection and response (EDR) platform built on Zero Trust principles.
Sector
Cybersecurity
Verticals
Endpoint Security, Zero Trust, Threat Intelligence, Incident Response
Business Model
B2B
Customer Profile
Subscription SaaS, Services & Consulting
AI Layer
Application
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Nucleon Security Comparables
Compare Nucleon Security with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| HarfangLab | 88% | |
| TEHTRIS | 81% | |
| WithSecure Corporation | 73% |
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Nucleon Security Funding Rounds
Historical fundraising activity
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Key People
Founding team and executive leadership
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Nucleon Security Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| LoftyInc Capital Management | Seed |
| Orange Ventures | Seed |
| Axian Group | Seed |
| CDG Invest | Seed |
| Newfund Capital | Seed |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jun 4, 2026
Grew 31% QoQ, from 29 to 38 employees.
- Feb 2, 2026
Grew 33% QoQ from 21 to 28 employees.
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Nucleon Security Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
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Frequently Asked Questions
Common questions about Nucleon Security's valuation, stock price, and market status.
Is Nucleon Security a public or private company?
Nucleon Security is a private company.
What is the current stock price of Nucleon Security?
Nucleon Security is a private company, so its shares have no public market price. Caplight tracks Nucleon Security's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Nucleon Security worth (valuation)?
Valuation information for Nucleon Security is not publicly available.
Can I buy Nucleon Security stock?
Nucleon Security shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Nucleon Security's last funding round?
Nucleon Security's most recent funding round was Seed on September 9, 2025.
Who are the main investors in Nucleon Security?
Key investors in Nucleon Security include Newfund Capital.
Will Nucleon Security IPO soon?
No public IPO plans have been announced for Nucleon Security.
How can I track Nucleon Security secondary market activity?
Caplight tracks bids, offers, and trades in Nucleon Security's shares on secondary markets.