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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
$553.8M
Avg Funding
$22.2M
Cities
23

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Kobe, Japan
$644K
raised

TelaAxon develops artificial intelligence technology for sustainable operations, enhancing human-AI coexistence, safety, and wellness.

Jan 2025
Series A

Founder Contacts

30,000+ verified contacts

Monroe, United States
$9.0M
raised

Zorus is the movement of cyber security from on-premise to the Cloud.

Dec 2021
Series A

Founder Contacts

30,000+ verified contacts

Boston, United States
$31.0M
raised

Stop Shifting left, Shift Out!

Jan 2022
Series A

Founder Contacts

30,000+ verified contacts

Paris, France
$11.3M
raised

Yogosha is a french bug bounty platform.

Jan 2022
Series A

Founder Contacts

30,000+ verified contacts

Boston, United States
$130.0M
raised

7AI provides an AI-driven cybersecurity platform that utilizes AI agents to manage the full lifecycle of security operations.

Dec 2025
Series A

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Los Altos, United States
$55.0M
raised

CYGNVS is an IT services company that provides a cyber crisis response platform designed to help organizations.

Jan 2023
Series A

Founder Contacts

30,000+ verified contacts

Arlington, United States
$1.6M
raised

Nisos is a managed intelligence and investigations firm that provides active defense technology-enabled services and products.

Dec 2022
Series A

Founder Contacts

30,000+ verified contacts

Denver, United States
$21.0M
raised

Casa helps consumers and companies securely store cryptocurrencies and manage private keys.

Dec 2021
Series A

Founder Contacts

30,000+ verified contacts

Singapore, Singapore
$20.0M
raised

World's Leading Distributed Storage Provider

Dec 2021
Series A

Founder Contacts

30,000+ verified contacts

Fort Lauderdale, United States

Foundational Model (DID) LLM, Agentic Logo System, Human Energy Grid, Blockchain, NFT Custom Logo and Facial Recognition

Dec 2025
Series A

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Austin, United States

Veridise is a leader in blockchain security. The company offers Web3 security audits of ZKP, DeFi, Layer 1 & Layer 2s, dApps, and more.

Dec 2022
Series A

Founder Contacts

30,000+ verified contacts

Lehi, United States
$12.0M
raised

Paramify is a software platform that automates the creation, management, and maintenance of security compliance and risk documentation.

Dec 2025
Series A

Founder Contacts

30,000+ verified contacts

Austin, United States
$8.8M
raised

Verisoul provides an identity verification and prevention platform to help online businesses distinguish real users from fake accounts.

Dec 2025
Series A

Founder Contacts

30,000+ verified contacts

New York, United States
$35.0M
raised

Echo develops and provides container base images designed to eliminate known software vulnerabilities in cloud-native applications.

Dec 2025
Series A

Founder Contacts

30,000+ verified contacts

Richmond North, Australia
$33.2M
raised

IND Technology is a data security and quality improvement.

Dec 2025
Series A

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Chicago, United States
$9.5M
raised

UncommonX offers cybersecurity protection for organizations by combining threat and intelligence software with 24/7 industry experts.

Dec 2021
Series A

Founder Contacts

30,000+ verified contacts

Wilmington, United States
$25.0M
raised

Venice is a modern Privileged Access Management platform built for today’s reality.

Dec 2025
Series A

Founder Contacts

30,000+ verified contacts

Dublin, Ireland
$50.0M
raised

Argus Tactical Intelligence Platform: Unlimited data source integration, enterprise graph analysis, and flexible deployment.

Dec 2025
Series A

Founder Contacts

30,000+ verified contacts

San Francisco, United States
$3.0M
raised

Good2Go provides secure access and virtual queuing solutions

Dec 2024
Series A

Founder Contacts

30,000+ verified contacts

Cambridge, United Kingdom
$59.9M
raised

Nu Quantum focuses on developing quantum networking hardware and software to scale quantum computers for practical use.

Dec 2025
Series A

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Carlsbad, United States
$9.0M
raised

True I/O provides cloud-based enterprise hosting, server, and storage solutions.

Jan 2023
Series A

Founder Contacts

30,000+ verified contacts

Miami, United States
$10.0M
raised

SCYTHE is the adversary emulation validation and threat intelligence platform for the enterprise cybersecurity market.

Nov 2021
Series A

Founder Contacts

30,000+ verified contacts

San Jose, United States
$9.0M
raised

Portal26 offers a platform that renders data immune to ransomware, cyberattacks, extortion and any data related cyber event.

Nov 2025
Series A

Founder Contacts

30,000+ verified contacts

Menlo Park, United States

ActZero provides AI-driven managed detection and response for cybersecurity.

Jan 2022
Series A

Founder Contacts

30,000+ verified contacts

Berlin, Germany
$9.9M
raised

NetBird is a cybersecurity company that is building an open-source platform to simplify the deployment of Virtual Private Networks.

Jan 2026
Series A

Founder Contacts

30,000+ verified contacts

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393 Cyber Security Series A Startups (August 2026) — Page 14 | VCBacked