Latest Cybersecurity Startup Funding Rounds
Security companies raising capital to protect identities, applications, infrastructure and data.
- Rounds
- 30 Sep 16 – Oct 15, 2026
- Disclosed funding
- $1.5B 25 disclosed amounts
- Median round
- $15.4M Of disclosed amounts
| Company | Amount | Round | Sector | Country | Investors | Announced |
|---|---|---|---|---|---|---|
| O OpsinCompany profile Opsin helps enterprises discover AI agents, assess their permissions and contain risky behaviour. Opsin helps enterprises discover AI agents, assess their permissions and contain risky behaviour. | $21M | Funding roundUndisclosed | Cybersecurity | United States | Investors | |
| C Autonomous adversarial testing for enterprise security teams. | $4M | Pre-seed | Cybersecurity | United Kingdom | Investors | |
| HS Harmonic SecurityCompany profile Harmonic Security helps enterprise security teams understand employee AI use and prevent sensitive information from being shared. Harmonic Security helps enterprise security teams understand employee AI use and prevent sensitive information from being shared. | $50M | Series B | Cybersecurity | United States | Investors | |
| H HadrianCompany profile Hadrian helps enterprise security teams discover exposed systems and validate exploitable weaknesses. Hadrian helps enterprise security teams discover exposed systems and validate exploitable weaknesses. | $40M | Series B | Cybersecurity | Netherlands | Investors | |
| N NetsecCompany profile Netsec operates IT and cybersecurity for mid-market companies through a unified managed service delivered in Slack and Teams. Netsec operates IT and cybersecurity for mid-market companies through a unified managed service delivered in Slack and Teams. | >$10M | Undisclosed | Cybersecurity | France | Investors | |
| FA Fleuret AI builds autonomous agents for penetration testing. | €4M | Pre-seed | Cybersecurity | France | Investors | |
| A ArmadinCompany profile Armadin develops AI agents that test attack paths across enterprise systems and show defenders how connected weaknesses could be exploited. Armadin develops AI agents that test attack paths across enterprise systems and show defenders how connected weaknesses could be exploited. | $255.5M | Series B | Cybersecurity | United States | Investors | |
| O OsavulCompany profile Osavul uses AI to detect and investigate hybrid threats across information, cyber and physical domains for governments and critical organizations. Osavul uses AI to detect and investigate hybrid threats across information, cyber and physical domains for governments and critical organizations. | €8.5M | Series A | Cybersecurity | — | Investors | |
| SS Sovera SecurityCompany profile AI-native managed detection and response software that helps organizations coordinate security operations across their existing tools. AI-native managed detection and response software that helps organizations coordinate security operations across their existing tools. | DKK 4M | EIFO match loanUndisclosed | Cybersecurity | Denmark | Investors | |
| R RemoteThreatCompany profile RemoteThreat provides an offensive cyber-operations platform for enterprise red teams, government mission teams and vetted defence partners. RemoteThreat provides an offensive cyber-operations platform for enterprise red teams, government mission teams and vetted defence partners. | $7M | Pre-seed | Cybersecurity | United States | Investors |
Active investors in this selection
All investors →Ranked by rounds participated in · From Sep 16, 2026
- 1Crosspoint Capital Partners
Harmonic Security, Mind
2rounds2led - 2Forgepoint Capital International
Hadrian, Hackuity
2rounds2led - 3Smartfin
Hadrian, Marble
2rounds2led - 442CAP
Osavul, Kontext
2rounds1led - 5Evolution Equity Partners
Island, Outerlimit
2rounds1led
Latest digests
Archive →Explore published rounds while the next edition is being prepared.