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Seed Cyber Security Companies

Explore 1,154 cyber security startups that raised seed funding. Access verified founder contact information and fundraising data.

Total Companies
1,154
Total Funding
$141.5M
Avg Funding
$5.7M
Cities
19

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Milan, Italy
$3.4M
raised

Beelzebub develops AI-native cybersecurity software for threat detection, deception, and automated security operations.

Jul 2026
Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$20.0M
raised

Way imposes your iam tools on apps and identities that they cannot access.

Jul 2026
Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$4.1M
raised

StrongestLayer is an AI-based cybersecurity platform mainly for email security and human risk mitigation.

Jul 2026
Seed

Founder Contacts

41,000+ verified contacts

Bydgoszcz, Poland
$850K
raised

Polish AI-first Intelligence & Cybersecurity platform. Sovereign, modular, air-gap native. NIS2/AI Act compliant.

Jul 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

London, United Kingdom
$2.6M
raised

Ossprey Security is a British cybersecurity company that detects malicious open-source packages using AI-powered behavioural analysis.

Jul 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Leeds, United Kingdom
$3.6M
raised

Xentra is a company that provides a full range of digital security solutions .

Jul 2026
Seed

Founder Contacts

41,000+ verified contacts

Singapore, Singapore
$3.9M
raised

PQCee develops post-quantum cryptography solutions to help organizations secure digital systems against future quantum computing threats.

Jul 2026
Seed

Founder Contacts

41,000+ verified contacts

Vienna, United States
$3.0M
raised

Argos Identity is an identity verification service provider. Identify Anyone Anywhere Anytime.

Jul 2026
Seed

Founder Contacts

41,000+ verified contacts

Tokyo, Japan
$308K
raised

ZeamiCyberSecurity develops enterprise cybersecurity SaaS centered on the Zeami Intelligence security intelligence platform.

Jul 2026
Seed

Founder Contacts

41,000+ verified contacts

Madrid, Spain
$1.1M
raised

8Layers is an artificial intelligence platform that offers cloud identity threat detection to organizations

Jul 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Menlo Park, United States
$35.0M
raised

Arkenstone Defense is a compliance and operations software platform for defense contractors.

Jul 2026
Seed

Founder Contacts

41,000+ verified contacts

Kyiv, Ukraine
$572K
raised

Trinity Robotics is a manufacturer of unmanned ground vehicles for logistics and evacuation.

Jul 2026
Seed

Founder Contacts

41,000+ verified contacts

Los Angeles, United States
$330K
raised

ORBES is building the maintenance backbone for space.

Jul 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Baltimore, United States
$3.6M
raised

Vigilant Sec is a cybersecurity company that offers a software for managing threats and risks for cloud and computer infrastructure.

Jul 2026
Seed

Founder Contacts

41,000+ verified contacts

Amsterdam, The Netherlands
$3.3M
raised

Dawnguard is an AI-native cloud security platform that builds security into cloud architecture, helping teams validate their infrastructure.

Jul 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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San Jose, United States
$2.0M
raised

defense, security

Jun 2026
Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$14.0M
raised

Helicon Industries is a developer of advanced composite manufacturing systems for aerospace, defense, and marine applications.

Jun 2026
Seed

Founder Contacts

41,000+ verified contacts

New York, United States
$3.2M
raised

QuickSecure is a safety and operations company that offers a platform to monitor and mitigate security risks at K-12 schools.

Jun 2026
Seed

Founder Contacts

41,000+ verified contacts

Lund, Sweden
$534K
raised

Waveium develops an API-based cloud platform for instant wireless design simulations and validation.

Jun 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Izmir, Turkey

Syntonym is a generative AI privacy tech startup specializing in pioneering synthetic face generation technology.

Jun 2026
Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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San Francisco, United States

Tolmo is an AI security platform that secures every layer of cloud applications, from code to cloud

Jun 2026
Seed

Founder Contacts

41,000+ verified contacts

New York, United States
$6.0M
raised

Tenet Security is a cybersecurity company focused on securing autonomous AI agents.

Jun 2026
Seed

Founder Contacts

41,000+ verified contacts

Barcelona, Spain
$19.9M
raised

NeuralTrust offers cybersecurity solutions designed to protect AI Agents and applications from attacks, hallucinations, and data leakages.

Jun 2026
Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$10.0M
raised

Magnitude is an autonomous AI workforce platform that offers third-party cyber risk management services.

Jun 2026
Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Silmaril secures enterprise generative AI tools by deploying automated, real-time firewalls to stop complex prompt injection attacks.

Jun 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

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1,154 Cyber Security Seed Startups (November 2026) — Page 3 | VCBacked