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Series A Cyber Security Companies

Explore 393 cyber security startups that raised series a funding. Access verified founder contact information and fundraising data.

Total Companies
393
Total Funding
$841.6M
Avg Funding
$33.7M
Cities
17

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New York, United States
$20.0M
raised

Baselayer automates B2B risk assessment and eliminates fraud for over 1,900 Financial & Government Institutions.

Jul 2026
Series A

Founder Contacts

30,000+ verified contacts

Sunnyvale, United States
$13.0M
raised

Discern Security helps organizations assess, prioritize, and remediate cybersecurity risks across enterprise environments.

Jul 2026
Series A

Founder Contacts

30,000+ verified contacts

Goleta, United States
$60.0M
raised

ChipAgents revolutionizes chip design and verification with Agentic AI, boosting RTL productivity 10x for smarter, faster innovation.

Jul 2026
Series A

Founder Contacts

30,000+ verified contacts

Dallas, United States
$20.0M
raised

SolCyber offers a curated stack of enterprise-strength security tools and streamlined, accessible, and affordable services.

Jul 2021
Series A

Founder Contacts

30,000+ verified contacts

Aveiro, Portugal
$11.5M
raised

Distributed cybersecurity ecosystem

Jul 2022
Series A

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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San Francisco, United States
$20.0M
raised

Lakera is a real-time GenAI security company that utilizes AI to protect enterprises from LLM vulnerabilities.

Jul 2024
Series A

Founder Contacts

30,000+ verified contacts

New York, United States
$36.0M
raised

Aegis AI is an email security platform that leverages AI agents to analyze emails like human analysts.

Jul 2026
Series A

Founder Contacts

30,000+ verified contacts

San Francisco, United States
$25.0M
raised

Abstract Security provides data management solutions for security and compliance analytics.

Jul 2026
Series A

Founder Contacts

30,000+ verified contacts

Washington, United States
$160.0M
raised

Cathedral is an AI-powered military cybersecurity startup building offensive and defensive capabilities for national security operations.

Jul 2026
Series A

Founder Contacts

30,000+ verified contacts

Boston, United States
$75.0M
raised

Neo Security is a cybersecurity company that develops an AI security platform for enterprises adopting agentic AI and AI-enabled software.

Jul 2026
Series A

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Chicago, United States
$25.0M
raised

Empirical Security develops data-driven models to prioritize, analyze, and summarize cybersecurity vulnerabilities.

Jul 2026
Series A

Founder Contacts

30,000+ verified contacts

Miami, United States
$90.0M
raised

Halborn is a cybersecurity company protecting blockchain organizations from cyber attacks.

Jul 2022
Series A

Founder Contacts

30,000+ verified contacts

San Francisco, United States
$13.0M
raised

Autonomous security testing for web apps, APIs, infrastructure, and AI systems.

Jul 2026
Series A

Founder Contacts

30,000+ verified contacts

San Francisco, United States
$45.0M
raised

Sable is a reliable partner that offers strict compliance, safe data processing, and no training on your data.

Jul 2026
Series A

Founder Contacts

30,000+ 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

30,000+ verified contacts

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30,000+ verified emails
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Warsaw, Poland
$6.7M
raised

Know Your Users™ to reject only fraudsters

Jul 2021
Series A

Founder Contacts

30,000+ verified contacts

Brussels, Belgium
$3.7M
raised

Kaspard is a non-intrusive system that in case of fall or too long bed exits provides real-time information to nurses in institutions.

Jul 2021
Series A

Founder Contacts

30,000+ verified contacts

Atlanta, United States
$21.0M
raised

SecurEnds is an information security company that helps to reduce security risk and costs by automating IGA.

Jul 2021
Series A

Founder Contacts

30,000+ verified contacts

Berlin, Germany
$17.1M
raised

Project Q connects sensors, unmanned systems, command applications, and other operational technologies through an open-core platform.

Jul 2026
Series A

Founder Contacts

30,000+ verified contacts

London, United Kingdom
$50.0M
raised

Valarian develops infrastructure and software for managing sensitive data, communications, and AI workloads in secure environments.

Jul 2026
Series A

Founder Contacts

30,000+ verified contacts

Ready to Reach These Founders?

Get verified contact info for decision-makers at 393 funded startups

30,000+ verified emails
Unlimited exports
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Berlin, Germany
$5.0M
raised

Sentryc provides brand protection, piracy protection, copyright protection, and plagiarism protection.

Jul 2022
Series A

Founder Contacts

30,000+ verified contacts

Austin, United States
$10.0M
raised

ThreatWarrior delivers network detection and response to stop cyber threats across on-premises, cloud, and hybrid environments.

Jul 2021
Series A

Founder Contacts

30,000+ verified contacts

Romainville, France
$57.6M
raised

Alta Ares is a data integration surveillance service provider that utilizes drone imaging.

Jun 2026
Series A

Founder Contacts

30,000+ verified contacts

Austin, United States
$7.0M
raised

HackNotice is a threat intelligence company specializing in data breaches as well as leaked credentials and identities.

Jun 2022
Series A

Founder Contacts

30,000+ verified contacts

London, United Kingdom
$20.0M
raised

SaaS, Mobile App, Payments; Global Network Management System

Jun 2025
Series A

Founder Contacts

30,000+ verified contacts

Showing 26 to 50 of 393 companies

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393 Cyber Security Series A Startups (August 2026) — Page 2 | VCBacked