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Series C Cyber Security Companies

Explore 102 cyber security startups that raised series c funding. Access verified founder contact information and fundraising data.

Total Companies
102
Total Funding
$3.5B
Avg Funding
$139.3M
Cities
21

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Berlin, Germany
$114.5M
raised

Noxtua, Europe’s sovereign Legal AI.

Sep 2026
Series C

Founder Contacts

41,000+ verified contacts

Huntington Beach, United States
$600.0M
raised

Mach Industries is a defense manufacturing company that develops unmanned systems and defense infrastructure.

Sep 2026
Series C

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$300.0M
raised

Upwind Security provides unified cloud and application security, using real-time visibility to identify threats and protect data integrity.

Sep 2026
Series C

Founder Contacts

41,000+ verified contacts

Torrance, United States
$800.0M
raised

Castelion is a defense tech company that develops and manufactures modern weapons systems for the U.S. military.

Aug 2026
Series C

Founder Contacts

41,000+ verified contacts

New York, United States
$60.0M
raised

Oligo Security provides runtime security software that detects, prioritizes, and blocks threats across applications, cloud, and AI.

Aug 2026
Series C

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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New York, United States
$115.0M
raised

Zenity provides an AI security and governance platform that monitors, manages, and protects AI agents, applications, and automations

Aug 2026
Series C

Founder Contacts

41,000+ verified contacts

Richmond, United Kingdom
$50.0M
raised

Inforcer offers multi-tenant policy management with Microsoft 365, Azure, MEM, Intune, and Defender.

Jul 2026
Series C

Founder Contacts

41,000+ verified contacts

The Hague, The Netherlands
$68.6M
raised

Eye Security is a cybersecurity and InsurTech firm that provides cybersecurity measures for SMEs.

Jun 2026
Series C

Founder Contacts

41,000+ verified contacts

Austin, United States
$400.0M
raised

NinjaOne serves as an IT platform for endpoint management that enhances productivity, minimizes risks, and lowers overall IT expenses.

Jun 2026
Series C

Founder Contacts

41,000+ verified contacts

Stanford, United States
$60.0M
raised

Socket is a developer-first security platform that protects your most critical apps from software supply chain attacks.

May 2026
Series C

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Seattle, United States
$35.0M
raised

XBOW develops autonomous security testing software that identifies and validates vulnerabilities in web applications and digital systems.

May 2026
Series C

Founder Contacts

41,000+ verified contacts

Belfast, United Kingdom
$72.0M
raised

Cloudsmith is an artifact management platform designed to control, secure, and distribute software packages and containers effectively.

Apr 2026
Series C

Founder Contacts

41,000+ verified contacts

Arlington, United States
$100.0M
raised

Cape develops privacy-enabling technology that allows users to reclaim their privacy and security on electronic devices.

Mar 2026
Series C

Founder Contacts

41,000+ verified contacts

Portland, United States
$25.0M
raised

Eclypsium offers a platform for supply chain security for IT infrastructure.

Mar 2026
Series C

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$100.0M
raised

WorkOS is a unified platform with modern APIs and SDKs for enterprise-ready features.

Mar 2026
Series C

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Mountain View, United States
$75.0M
raised

UpGuard is a cybersecurity platform that focuses on managing cyber risks across vendor supply chains, attack surfaces, and human workforces.

Feb 2026
Series C

Founder Contacts

41,000+ verified contacts

Sarasota, United States
$20.0M
raised

Nucleus Security provides a platform for managing and prioritizing security and exposure data.

Feb 2026
Series C

Founder Contacts

41,000+ verified contacts

Paris, France
$50.0M
raised

GitGuardian specializes in Non-Human Identity security, detecting secrets in code and enhancing productivity in development environments.

Feb 2026
Series C

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$75.0M
raised

Agentic AI for Audit and Advisory.

Feb 2026
Series C

Founder Contacts

41,000+ verified contacts

Paris, France
$23.3M
raised

Stoïk is a cyber insurtech company that help businesses manage their exposure to cyber risks.

Jan 2026
Series C

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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São Paulo, Brazil

One Platform. Endless possibilities.

Dec 2025
Series C

Founder Contacts

41,000+ verified contacts

San Jose, United States
$100.0M
raised

Axiado is a security processor company redefining hardware root of trust with hardware-based security technologies, including per-system AI.

Dec 2025
Series C

Founder Contacts

41,000+ verified contacts

Covina, United States
$70.0M
raised

Doppel is an AI-native security platform that helps organizations defend against social engineering risks and digital impersonation.

Nov 2025
Series C

Founder Contacts

41,000+ verified contacts

Singapore, Singapore
$20.0M
raised

Asia's leading cloud and AI company empowering businesses to accelerate digital transformation through cloud technology and machine learning

Nov 2025
Series C

Founder Contacts

41,000+ verified contacts

Washington, United States
$150.0M
raised

Sublime Security develops an email security platform to write and run custom detection and response rules to block phishing attacks.

Oct 2025
Series C

Founder Contacts

41,000+ verified contacts

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