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Series A Cyber Security Companies

Explore 142 cyber security startups that raised series a funding. Access verified founder contact information and fundraising data.

Total Companies
142
Total Funding
$304.7M
Avg Funding
$12.2M
Cities
21

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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

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

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
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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

Den Haag, The Netherlands
$7.0M
raised

Automated Compliance, Security & Due Diligence

Sep 2025
Series A

Founder Contacts

19,000+ 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

19,000+ 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

19,000+ verified contacts

London, United Kingdom
$4.7M
raised

DynaRisk provides cyber security tools for home users and businesses.

Jul 2025
Series A

Founder Contacts

19,000+ verified contacts

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19,000+ verified emails
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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

19,000+ verified contacts

Dallas, United States
$17.0M
raised

AI-powered data pipeline for security and telemetry data that automates, optimizes, and enriches enterprise-scale data for analytics and AI

Jun 2025
Series A

Founder Contacts

19,000+ 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

19,000+ 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

19,000+ verified contacts

Seattle, United States
$30.0M
raised

MIND is a cybersecurity company that offers a data security platform to automate data loss prevention and insider risk management programs.

Jun 2025
Series A

Founder Contacts

19,000+ verified contacts

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19,000+ verified emails
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Berlin, Germany
$13.7M
raised

Baobab is a cyber insurance company protecting organizations against cyber threats using technology, knowledge, and insurance.

Jun 2025
Series A

Founder Contacts

19,000+ 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

19,000+ verified contacts

Las Vegas, United States
$25.0M
raised

Trustifi is a software-as-a-service (SaaS) company offering a patented email encryption, tracking and patented email postmarking service.

Jun 2025
Series A

Founder Contacts

19,000+ verified contacts

Saint-mande, France
$4.9M
raised

Dastra is an information and technology service.

May 2025
Series A

Founder Contacts

19,000+ verified contacts

San Rafael, United States
$1.0M
raised

Bright Security is an AI -powered application security platform that integrates application security into SDLC.

May 2025
Series A

Founder Contacts

19,000+ verified contacts

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19,000+ verified emails
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Austin, United States
$9.0M
raised

Clarity Security is an IGA platform that eliminate the need for employees to become SMEs in every facet of a company's tech stack.

May 2025
Series A

Founder Contacts

19,000+ verified contacts

Ashburn, United States
$15.0M
raised

BreachRx is an intelligent incident response platform that generates tailored response plans and provides targeted guidance to stakeholders.

May 2025
Series A

Founder Contacts

19,000+ verified contacts

Reston, United States
$13.0M
raised

ClearVector is an identity-driven cloud security company providing organizations with tools to fight cyber attackers.

May 2025
Series A

Founder Contacts

19,000+ verified contacts

Oslo, Norway
$7.0M
raised

Pistachio is an AI cybersecurity awareness training platform that offers users preparation and response to cybersecurity threats.

Apr 2025
Series A

Founder Contacts

19,000+ verified contacts

Tel Aviv, Israel
$11.0M
raised

LayerX is a provider of a browser security platform that turns any browser into a secure and manageable workspace.

Apr 2025
Series A

Founder Contacts

19,000+ verified contacts

Showing 26 to 50 of 142 companies

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