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Pre-Seed Cyber Security Companies

Explore 273 cyber security startups that raised pre-seed funding. Access verified founder contact information and fundraising data.

Total Companies
273
Total Funding
$29.2M
Avg Funding
$1.2M
Cities
18

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New York, United States
$500K
raised

Guild is an AI-native defense contractor automating aerospace manufacturing and supply-chain execution.

Sep 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$500K
raised

Decawork AI provides software for IT teams to deploy, govern, and maintain internal AI agents.

Sep 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

George Town, Cayman Islands
$500K
raised

Caution provides a verifiable confidential compute platform that delivers cryptographic proof for secure and trusted workload execution.

Sep 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Leusden, The Netherlands
$585K
raised

Passguard is a Software Development firm offering Data Security from infostealers on dark web data.

Sep 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

Montréal, Canada
$1.5M
raised

Inscora provides automated cyber risk assessment and sales enablement tools for cyber insurance brokers.

Aug 2024
Pre-Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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London, United Kingdom
$891K
raised

Seedata.io detect attackers by luring them to disclose their presence, turning their own techniques against them.

Aug 2021
Pre-Seed

Founder Contacts

41,000+ verified contacts

Boston, United States
$300K
raised

SecLogic is a CNAPP solution provider.

Aug 2021
Pre-Seed

Founder Contacts

41,000+ verified contacts

London, United Kingdom
$500K
raised

Aglide offers seamless access management and single sign-on for all apps, eliminating the need for SAML support.

Aug 2023
Pre-Seed

Founder Contacts

41,000+ verified contacts

Berkeley, United States
$6.0M
raised

Wireless Communication, Free Space Optics,

Aug 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Berlin, Germany
$2.6M
raised

KAZIMI is a cybersecurity startup that helps app developers protect and verify their first-party data.

Aug 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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London, United Kingdom
$1.2M
raised

Verascient connects your tools, builds a context graph, and surfaces it to agents.

Aug 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Warsaw, Poland
$250K
raised

Alpha Q - Algoritmus is a technology company building next-generation AI decision systems.

Aug 2021
Pre-Seed

Founder Contacts

41,000+ verified contacts

Worthing, United Kingdom
$266K
raised

Invisible monitoring, blocking, and reporting for AI chatbots and human support. Deploy with confidence.

Aug 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$500K
raised

Fix is a Computer and Network Security firm offering Mission control for AWS security.

Aug 2021
Pre-Seed

Founder Contacts

41,000+ verified contacts

Saginaw, United States
$1.4M
raised

Swept AI is a software company that provides AI applications tool, compliance infrastructure and security services.

Aug 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Los Altos, United States
$400K
raised

AppSecAI is transforming application security through AI-powered automation

Aug 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$1.5M
raised

CatchProbe is the world's leading technology company that developed the world's first AI-Driven SaaS-based centralized intelligence product.

Aug 2022
Pre-Seed

Founder Contacts

41,000+ verified contacts

New York, United States
$1.1M
raised

An Operating System For The Physical World

Aug 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

Tartu, Estonia
$1.2M
raised

Spaceit develops an end-to-end infrastructure for satellite operations

Aug 2021
Pre-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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Bilbao, Spain
$117K
raised

Plexicus is the AI-native ASPM and Vibe Coding Security platform built for the era of AI-assisted development.

Jul 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

Los Angeles, United States
$2.5M
raised

Lodestar Space develops satellite technology, provides space mission planning, and offers data solutions for aerospace applications.

Jul 2024
Pre-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

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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273 Cyber Security Pre-Seed Startups (October 2026) — Page 2 | VCBacked