Latest Cybersecurity Startup Funding Rounds
Security companies raising capital to protect identities, applications, infrastructure and data.
- Rounds
- 261 Jan 1 – Oct 24, 2026
- Disclosed funding
- $10.6B 228 disclosed amounts
- Median round
- $18M Of disclosed amounts
| Company | Amount | Round | Sector | Country | Investors | Announced |
|---|---|---|---|---|---|---|
| O Optalysys develops photonic computing technology for AI processing. | £23M | Series A+Series A | Cybersecurity, Hardware | United Kingdom | Investors | |
| C Provides cyber-physical systems protection platform | $150M | Series FSeries C+ | Cybersecurity | United States | Investors | |
| C Provides AI-powered cybersecurity training for K-12 schools | Undisclosed | Strategic GrowthUndisclosed | Cybersecurity | United States | Investors | |
| F Brings agentic AI to security remediation for IT security teams | $10M | Seed | Cybersecurity | United States | Investors | |
| A AiStrikeCompany profile AiStrike helps enterprise and government security teams investigate threats, improve detections and reduce exposure across connected systems. AiStrike helps enterprise and government security teams investigate threats, improve detections and reduce exposure across connected systems. | $7M | Seed | Cybersecurity | United States | Investors | |
| S Stoïk combines cyber insurance with active cyber-risk prevention. | €20M | Series CSeries C+ | Cybersecurity, Fintech | France | Investors | |
| DS Develops AI-native platform to secure AI-generated code for enterprises | $4M | Seed | Cybersecurity | Australia | Investors | |
| DA Provides AI SOC analysts for cybersecurity operations | $37M | Series B | Cybersecurity | United States | Investors | |
| C CloudSEKCompany profile Predictive Cyber Threat Intelligence firm specializing in AI-powered attack detection Predictive Cyber Threat Intelligence firm specializing in AI-powered attack detection | $10M | Series B2Series B | Cybersecurity | Singapore | Investors | |
| CO Cyb3r OperationsCompany profile Provides continuous visibility into third-party cyber risk for large enterprises Provides continuous visibility into third-party cyber risk for large enterprises | £4M | Undisclosed | Cybersecurity | United Kingdom | Investors |
Active investors in this selection
All investors →Ranked by rounds participated in · From Jan 1, 2026
- 1Accel
Armadin, AegisAI, Oak
12rounds1led - 2Ten Eleven Ventures
Rig Security, HiddenLayer, Geordie AI
9rounds1led - 3Sequoia Capital
Cymphony, AIR, CORMA
8rounds3led - 4Cyberstarts
Upwind Security, Onyx Security, NewCore
8rounds0led - 5Evolution Equity Partners
Island, Outerlimit, QIZ Security
7rounds1led
Latest digests
Archive →Explore published rounds while the next edition is being prepared.