Funding Database · Seed Stage
Seed-Stage Cybersecurity Startups — 2026 Funding Tracker
16 seed-stage cybersecurity companies tracked. $76.1M in aggregate seed funding. Updated weekly from public sources.
Companies
16
Total Raised
$76.1M
Avg Round
$4.8M
Top Growth
~350% YoY
Seed-Stage Funding Rounds — 2026
Sorted by reported growth rate (where available), then funding amount. Click company names for profiles where available.
| # | Company | Funding | Lead Investor | Founded | Focus | Growth | HQ |
|---|---|---|---|---|---|---|---|
| 1 | Vigilance Security Top Performer | $5M | Sequoia Scout | 2024 | AI-native threat detection | ~350% YoY | Tel Aviv, Israel |
| 2 | Prism Defense | $6.2M | Accel | 2024 | OT/ICS network monitoring | ~180% YoY | Austin, TX |
| 3 | Halo Cyber | $4.5M | CRV | 2025 | SaaS posture management | N/A | San Francisco, CA |
| 4 | NeuralShield | $7M | Greylock Partners | 2024 | AI model security & red-teaming | ~140% YoY | New York, NY |
| 5 | VaultEdge | $3.8M | YL Ventures | 2025 | Secrets management for DevOps | N/A | Tel Aviv, Israel |
| 6 | CipherTrace Labs | $5.5M | Bessemer Venture Partners | 2024 | Blockchain forensics | ~120% YoY | Denver, CO |
| 7 | Stratoshield | $4M | Team8 | 2024 | Cloud workload protection | ~90% YoY | Herzliya, Israel |
| 8 | ArkDefend | $6M | Lightspeed Venture Partners | 2025 | API security | N/A | Seattle, WA |
| 9 | ThreatCanvas | $3.2M | Costanoa Ventures | 2025 | Attack surface visualization | N/A | Boston, MA |
| 10 | Endgrid Security | $5M | Cyberstarts | 2024 | Email & messaging security | ~160% YoY | London, UK |
| 11 | RunSafe Security | $4.8M | Alsop Louie Partners | 2023 | Firmware & embedded security | ~110% YoY | McLean, VA |
| 12 | Observa AI | $3.5M | First Round Capital | 2025 | SOC automation | N/A | San Francisco, CA |
| 13 | RedStorm Cyber | $4.2M | Paladin Capital Group | 2024 | Penetration-testing-as-a-service | ~95% YoY | Washington, DC |
| 14 | SpecterOps Labs | $5.8M | Insight Partners | 2024 | Identity threat detection | ~130% YoY | Chicago, IL |
| 15 | Canopy Secure | $3M | Plug and Play Ventures | 2025 | IoT device security | N/A | Sunnyvale, CA |
| 16 | Meridian Cyber | $4.6M | Menlo Ventures | 2024 | Supply-chain risk scoring | ~100% YoY | Portland, OR |
Growth figures are self-reported or estimated from public data. “~” indicates approximate values. Last updated May 2026.
Standout: Vigilance Security
Vigilance Security
Founded in 2024 by Dan Lasker and Naor Haziz, both alumni of an elite Israeli intelligence unit and recognized Black Hat conference speakers. Vigilance is building an AI-native threat-detection platform that combines real-time behavioral analytics with autonomous response capabilities.
With ARR approaching $3M and growth exceeding 350% year-over-year, Vigilance is the fastest-growing seed-stage cybersecurity company in our 2026 tracker. The company has signed 8 enterprise customers, including multiple Fortune 500 organizations, within its first year of commercial operations.
$5M
Seed · Sequoia Scout
~350%+
Year-over-year
~18
Employees
8
Enterprise logos
Seed Funding by Focus Area
Distribution of seed-stage cybersecurity funding across categories in 2026.
AI / ML Security
3
Vigilance Security, NeuralShield, Observa AI
Cloud & SaaS Security
3
Halo Cyber, Stratoshield, ArkDefend
Network & OT Security
2
Prism Defense, Endgrid Security
DevOps & Supply Chain
2
VaultEdge, Meridian Cyber
Identity & Access
2
SpecterOps Labs, RedStorm Cyber
Specialized
4
CipherTrace Labs, RunSafe Security, ThreatCanvas, Canopy Secure
Last updated: May 19, 2026
Frequently Asked Questions
Disclaimer
Data presented on this page is sourced from public filings, press releases, and company-reported metrics. Growth rates prefixed with “~” are approximate and may not reflect audited financials. This information is provided for research and educational purposes only and does not constitute investment advice. Verify all data independently before making investment decisions.