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Series A Cyber Security Companies

Explore 402 cyber security startups that raised series a funding. Access verified founder contact information and fundraising data.

Total Companies
402
Total Funding
$344.1M
Avg Funding
$13.8M
Cities
16

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Palo Alto, United States
$18.0M
raised

Autonomous AI agents for Security Risk and Compliance

Sep 2025
Series A

Founder Contacts

41,000+ verified contacts

New York, United States
$7.0M
raised

Cloudburst Technologies provides realtime monitoring solutions and cyber threat intelligence tools.

Sep 2025
Series A

Founder Contacts

41,000+ verified contacts

Sunnyvale, United States

The AIRamp Agentic SaaS platform is the future of secure AI computing and it's based upon Tensor's patented pattern-of-life analysis (PoLA).

Sep 2025
Series A

Founder Contacts

41,000+ verified contacts

Bilbao, Spain
$2.3M
raised

Nymiz provides a definitive solution to ensure compliance with the GDPR regulations.

Sep 2025
Series A

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$23.0M
raised

Console is the AI platform for IT, built to help teams automate support and shift from doing the work to managing the system that does it.

Sep 2025
Series A

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Irvine, United States
$440K
raised

CloudScale engages in the field of cloud migration, transformation, application development, data intelligence and security.

Sep 2025
Series A

Founder Contacts

41,000+ verified contacts

Mechelen, Belgium
$10.0M
raised

Infrastructure as Code Management on Steroids.

Sep 2025
Series A

Founder Contacts

41,000+ verified contacts

Den Haag, The Netherlands
$7.0M
raised

Automated Compliance, Security & Due Diligence

Sep 2025
Series A

Founder Contacts

41,000+ verified contacts

Seattle, United States
$17.0M
raised

Vouched develops patent-pending visual ID verification for regulated and sensitive industries.

Sep 2025
Series A

Founder Contacts

41,000+ verified contacts

Washington, United States
$10.0M
raised

Tidal Cyber maps adversary behavior to a security stack using a threat-led defense platform.

Sep 2025
Series A

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Medellín, Colombia
$18.0M
raised

Somos Internet is a network and telecommunications startup that provides latest generation internet with a fast, secure, stable connection.

Aug 2025
Series A

Founder Contacts

41,000+ verified contacts

Palo Alto, United States
$5.0M
raised

HydroX AI is an AI-based security platform that provides one-stop solution for risk control and protecting sensitive data of large models.

Aug 2025
Series A

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$125K
raised

Tekver AI is a premium AI-powered platform that automatically reviews, verifies, and secures software systems.

Aug 2025
Series A

Founder Contacts

41,000+ verified contacts

Palo Alto, United States
$40.0M
raised

Lumana is a AI-powered video surveillance and safety technology that provides unparalleled visibility in any area.

Jul 2025
Series A

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$10.0M
raised

Reach Security is the defensive posture management company helping organizations deliver.

Jul 2025
Series A

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Wilmington, United States
$13.0M
raised

Seal Security provides security operations.

Jul 2025
Series A

Founder Contacts

41,000+ verified contacts

London, United Kingdom
$4.7M
raised

DynaRisk provides cyber security tools for home users and businesses.

Jul 2025
Series A

Founder Contacts

41,000+ verified contacts

Dallas, United States
$30.0M
raised

iCOUNTER has developed an intelligence capability that is solely focused on thwarting specific attacks.

Jul 2025
Series A

Founder Contacts

41,000+ verified contacts

New York, United States
$13.5M
raised

Zip Security delivers an AI-driven cybersecurity and compliance platform for security and IT automation for small and mid-sized enterprises.

Jul 2025
Series A

Founder Contacts

41,000+ verified contacts

New York, United States
$10.0M
raised

Qunnect is a spin-off venture company enabling the quantum internet for quantum repeater operation.

Jun 2025
Series A

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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London, United Kingdom
$25.0M
raised

Maze a platform that uses AI agents to investigate and resolve cloud security vulnerabilities.

Jun 2025
Series A

Founder Contacts

41,000+ verified contacts

Rockville, United States
$40.0M
raised

Quantum Space provides data buy services, deploys spacecraft, and performs space logistics for partners.

Jun 2025
Series A

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$16.0M
raised

Infisical is an open-source secrets manager that secures and syncs app configs and credentials across teams with end-to-end encryption.

Jun 2025
Series A

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$12.0M
raised

Impart Security is a complete API security platform designed to enable security and development teams to protect their APIs.

Jun 2025
Series A

Founder Contacts

41,000+ verified contacts

Brooklyn, United States
$12.0M
raised

Compyl is a provider of automated security and compliance solutions for business acceleration and security activities.

Jun 2025
Series A

Founder Contacts

41,000+ verified contacts

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402 Cyber Security Series A Startups (October 2026) — Page 6 | VCBacked