# Nucleon Security

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/nucleon-security

- Industry: IT Security/Cybersecurity
- Headquarters: Paris, France
- Website: www.nucleon-security.com/
- Total disclosed funding: $3.5M
- Latest round: Seed (Sep 9, 2025)
- Investors on record: 5

## About

Nucleon Security, Inc. is a France-based cybersecurity firm specializing in advanced solutions that safeguard organizations against evolving cyber threats.Founded in 2019 and headquartered in Paris, France, Nucleon Security, Inc. focuses on providing comprehensive cybersecurity solutions. The company successfully raised EUR 3 million in Seed funding led by Newfund Management in September 2025, with contributions from 212 Founders, Axian Group, CDG Capital Private Equity, LoftyInc Capital Management, and Orange Ventures. The firm has completed one deal to date.Nucleon Security offers a suite of advanced cybersecurity solutions designed to protect organizations from evolving threats. Their core products include Nucleon EDR, a zero-trust powered endpoint detection and response solution that dynamically adjusts its protection layers based on data sensitivity; CyclonShield MDR, which combines EDR technology with human expertise for enhanced continuous monitoring and threat detection; and Nucleon Malprob, an AI-driven malware detection platform that improves detection rates. Their solutions cater to clients across various industries, including IT services, retail, media, and banking, specifically targeting businesses with revenues between USD 50 mn to USD 3 bn across North America and Europe.Nucleon Security operates on a subscription-based revenue model, allowing clients to access their advanced cybersecurity solutions through ongoing agreements. Contracts provide flexibility for tailored solutions according to client needs, with key products like Nucleon EDR, CyclonShield MDR, and Nucleon Malprob forming the basis of these offerings. The pricing structures reflect the sophistication of the services, fostering long-term partnerships and ensuring continued support and updates to combat emerging threats.Following their most recent deal on September 9, 2025, where Nucleon Security raised EUR 3 million in Seed funding, the company plans to utilize this capital to scale its AI technology across its product range, support commercial growth in new markets, and enhance research and development efforts. Specific targeted expansions into new geographic regions will be outlined as the company progresses with these initiatives.

## Funding rounds

- Seed, Sep 9, 2025, $3.5M — Newfund, Orange Ventures, LoftyInc Capital Management, AXIAN Investment, 212 Founders

## Investors

- Newfund (https://capitalatlas.ai/funds/newfund) — Seed
- Orange Ventures — Seed
- LoftyInc Capital Management (https://capitalatlas.ai/funds/loftyinc-capital-management) — Seed
- AXIAN Investment (https://capitalatlas.ai/funds/axian-investment) — Seed
- 212 Founders — Seed