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Series A Security Companies

Explore 209 security startups that raised series a funding. Access verified founder contact information and fundraising data.

Total Companies
209
Total Funding
$444.8M
Avg Funding
$17.8M
Cities
20

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Munich, Germany
$12.0M
raised

Secfix is an end-to-end security compliance platform that helps organizations manage and meet regulatory and cybersecurity standards.

Feb 2026
Series A

Founder Contacts

19,000+ verified contacts

South San Francisco, United States
$34.0M
raised

Chariot Defense is creating the advanced hardware and software framework to solve it.

Feb 2026
Series A

Founder Contacts

19,000+ verified contacts

New York, United States
$25.0M
raised

Astelia is an AI-native exposure management tool that allows enterprises to concentrate on vulnerabilities that are actually exploitable.

Feb 2026
Series A

Founder Contacts

19,000+ verified contacts

Ann Arbor, United States
$6.0M
raised

Circadian Risk provides physical security risk assessment software to reduce risk to people and critical assets.

Feb 2026
Series A

Founder Contacts

19,000+ verified contacts

San Francisco, United States
$42.0M
raised

Cogent Security utilizes AI agents to manage vulnerabilities by connecting scanners and prioritizing fixes.

Feb 2026
Series A

Founder Contacts

19,000+ verified contacts

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19,000+ verified emails
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San Diego, United States
$20.0M
raised

Seasats designs and manufactures small uncrewed surface vehicles (sUSVs) designed for monitoring, data collection, and defense applications.

Feb 2026
Series A

Founder Contacts

19,000+ verified contacts

Tel Aviv, Israel
$19.0M
raised

Backslash Security provides security solutions for managing application and AI-driven development risks.

Feb 2026
Series A

Founder Contacts

19,000+ verified contacts

Jackson, United States
$48.0M
raised

Frontline protects homes and businesses from wildfires using tracking software, satellite connectivity, and onsite sprinkler systems.

Oct 2025
Series A

Founder Contacts

19,000+ verified contacts

Madrid, Spain
$11.6M
raised

AcoruAI is a cybersecurity company that develops an AI-driven platform that focuses on proactive fraud and scam prevention.

Oct 2025
Series A

Founder Contacts

19,000+ verified contacts

Coeur D'alene, United States
$15.4M
raised

Full stack data analytics platform

Oct 2025
Series A

Founder Contacts

19,000+ verified contacts

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19,000+ verified emails
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Boston, United States
$28.0M
raised

OneLayer offers a security and asset management platform focused on private LTE and 5G networks.

Oct 2025
Series A

Founder Contacts

19,000+ verified contacts

Havant, United Kingdom
$6.7M
raised

Managed Security Service Provider (MSSP), SaaS, Cyber Security

Oct 2025
Series A

Founder Contacts

19,000+ verified contacts

San Francisco, United States
$20.0M
raised

Glide Identity provides SIM-based cryptographic authentication and verification systems using telecom network APIs.

Oct 2025
Series A

Founder Contacts

19,000+ verified contacts

Sheffield, United Kingdom
$10.0M
raised

Sitehop develops cutting-edge networking and cyber-security solutions.

Oct 2025
Series A

Founder Contacts

19,000+ verified contacts

San Francisco, United States
$8.5M
raised

Arcjet is a security platform that adds bot detection, rate limiting, and attack protection to applications with minimal code.

Oct 2025
Series A

Founder Contacts

19,000+ verified contacts

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19,000+ verified emails
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Amsterdam, The Netherlands
$33.0M
raised

Oneleet offers a cybersecurity platform for automated security and compliance.

Oct 2025
Series A

Founder Contacts

19,000+ verified contacts

Victoria, Brazil
$3.8M
raised

Exato is a quick, affordable, and thorough background check platform that can be used by corporations, startups, and micro-entrepreneurs.

Oct 2025
Series A

Founder Contacts

19,000+ verified contacts

San Francisco, United States
$17.5M
raised

Mondoo is an exposure management platform that identifies, prioritizes, and addresses vulnerabilities and misconfigurations.

Sep 2025
Series A

Founder Contacts

19,000+ verified contacts

Palo Alto, United States
$18.0M
raised

Autonomous AI agents for Security Risk and Compliance

Sep 2025
Series A

Founder Contacts

19,000+ 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

19,000+ verified contacts

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19,000+ verified emails
Unlimited exports
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Bilbao, Spain
$2.3M
raised

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

Sep 2025
Series A

Founder Contacts

19,000+ 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

19,000+ verified contacts

Mechelen, Belgium
$10.0M
raised

Infrastructure as Code Management on Steroids.

Sep 2025
Series A

Founder Contacts

19,000+ verified contacts

Den Haag, The Netherlands
$7.0M
raised

Automated Compliance, Security & Due Diligence

Sep 2025
Series A

Founder Contacts

19,000+ 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

19,000+ verified contacts

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