Security startup funding 2026: 14 rounds
AI security, identity, cloud and data security.
- Noetive raises $41M Seed, . Security. Five months old, Noetive raises $41 million Seed to build AI for the physical economy | Ctech 24/7 Buzz Startups VC AI DefenseTech Opinions Events ScaleUp House Promising Startups 2026 2026 VC Survey Boarding Pass
- Cyera raises $400M Series G, . Security. Cybersecurity startup Cyera Ltd.
- Baselayer raises $35M Series A, . Security. Already used by more than 1 in 5 financial institutions to verify businesses and manage risk, Baselayer is extending its identity network to agents acting and transacting on their behalf NEW YORK, Sept.
- Upwind raises $300M Series C, . Security. Led by Bessemer Venture Partners, TCV. Upwind provides runtime-first cloud and AI application security.
- Alice raises $140M Growth, . Security. Led by Apax Digital. Alice, formerly ActiveFence, tests and protects AI models and agents against misuse and unsafe behavior.
- Cytix raises $7M Series A, . Security. Led by Northern Gritstone. Cytix assesses the security risk of code changes in fast, AI-assisted software development.
- Corma raises $60M Seed, . Security. Led by Sequoia Capital. Corma builds a foundation model and AI agents for defensive cybersecurity work across existing security tools.
- Oligo Security raises $60M Series C, . Security. Oligo Security provides runtime security that detects and blocks exploits in applications, cloud workloads and AI systems.
- Zenity raises $125M Series C, . Security. Led by Norwest. Zenity secures and governs enterprise AI agents by allowing, modifying or blocking their actions.
- Onyx Security raises $113M Series B, . Security. Led by Bessemer Venture Partners. Onyx Security monitors enterprise AI agents and enforces governance rules on their actions in real time.
- AegisAI raises $36M Series A, . Security. Led by Battery Ventures. AegisAI uses its own language models and AI agents to stop phishing and business email compromise.
- Oak raises $60M Seed, . Security. Led by Accel, Greylock, CRV. Oak builds an identity governance platform that manages access for human, machine and AI agent identities from one control plane.
- Straiker raises $64M Series A, . Security. Led by Marathon Management Partners, Citi Ventures, Illuminate Financial, Workday Ventures. Straiker discovers AI agents inside organizations, tests them adversarially before deployment and protects them at runtime.
- Nebulock raises $25M Series A, . Security. Led by FirstMark. Nebulock runs AI-driven threat hunting and behavioral analytics across endpoint, cloud and identity activity.