Security startup funding 2026: 78 rounds
AI security, identity, cloud and data security.
- Ocient raises $100M Series C, . Security. Ocient Inc., the maker of a speedy data analytics platform, today said it has raised $100 million in a Series C funding to expand its agentic artificial intelligence analytics business.
- Sentra raises $150M, . Security. Strategic capital investment led by Capital One Ventures will expand Sentra's platform for protecting data at rest, where it lives, and controlling what AI agents can reach.
- CyberKord raises $3.2M Pre-seed, . Security. Italian cybersecuritystartup CyberKord has raised €2.7 million in a pre-seed funding round tosupport the development of its AI-powered platform for automating IT andcybersecurity operations.
- AvalonX raises $10M, . Security. Led by RIDOWN Capital. AvalonX provides continuous AI-powered automated penetration testing for small and midsize businesses.
- Pixel Systems raises $3.1M Seed, . Security. Led by Unconventional Ventures. Pixel Systems develops software tools that identify synthetic AI-generated content and digital image manipulation.
- Upwind Security raises $400M Series C, . Security. Upwind Security provides cloud and AI security solutions.
- Casap raises $56M Series B, . Security. Casap builds AI software systems helping financial institutions detect card fraud and automate dispute management.
- Northstar Security raises $7M Seed, . Security. Led by Wing Venture Capital. Northstar Security provides a platform that gives AI agents context to act on security risks.
- Infisical raises $40M Series B, . Security. Led by Elad Gil. Infisical provides secrets management infrastructure to secure enterprise systems and AI agents.
- Cygrid raises $2.9M Pre-seed, . Security. Led by Atlantic. Cygrid provides an identity-enforcement platform that controls access to confidential information to stop AI agents from accessing it.
- Mave raises $34M Seed, . Security. Led by Red Dot Capital Partners. Mave provides an agentic platform that integrates existing security tools into a single system for threat detection and response.
- Modelyo raises $17M Seed, . Security. Led by OlivTree. Modelyo is a cybersecurity startup providing a confidential cloud platform to protect data during processing.
- Indurex raises $7.6M Seed, . Security. Led by Contrarian Ventures. Indurex builds an AI-native platform for securing cyber-physical systems.
- Blackwall raises $100M Series C, . Security. Blackwall, a global web infrastructure company building a web traffic management ecosystem, today announced it raised $100 million in a Series C funding, valuing the company at $2.2 billion.
- Harmonic Security raises $50M, . Security. Led by Crosspoint Capital Partners. Workplace artificial intelligence security startup Harmonic Security Inc.
- Pluto Security raises $42M Seed, . Security. Led by TLV Partners. Pluto Security Inc., a provider of artificial intelligence security software, today announced that it has raised $42 million in funding.
- Rein Security raises $25M Series A, . Security. Led by Glilot Capital. Rein Security develops cybersecurity software to protect enterprises against security threats from agentic AI.
- Netsec raises $10M, . Security. Led by Partech. Netsec provides an AI-native solution for cybersecurity and managed IT services.
- Hilt raises $4.2M Seed, . Security. Hilt develops cybersecurity software for breach prevention.
- Hadrian raises $40M, . Security. Led by Forgepoint Capital International, Smart Fin. Hadrian is an agentic AI offensive security platform that helps organizations identify and seal vulnerabilities.
- Fleuret AI raises $4.4M Pre-seed, . Security. Led by RAISE Ventures. Fleuret AI automates penetration testing using agentic AI.
- Armadin raises $256M Series B, . Security. Led by Andreessen Horowitz, Accel. Armadin provides cybersecurity solutions using AI agent swarms to detect vulnerabilities.
- Osavul raises $9.4M Series A, . Security. Osavul develops AI-powered threat intelligence software to detect hostile threats and disinformation.
- Reco raises $55M, . Security. Reco provides cybersecurity solutions to map and secure SaaS and AI platforms.
- Rig Security raises $12M Seed, . Security. Led by Ten Eleven Ventures, Brightmind Partners. Rig Security provides a platform to secure AI agents and distinguish them from human identities.
- Kontext raises $4M, . Security. AI security company Kontext has raised $4million in funding to expand its runtime security platform for AI agents.
- Noetive raises $41M Seed, . Security. Five months old, Noetive raises $41 million Seed to build AI for the physical economy
- 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.
- Socure raises a Growth round, . Security. Led by Summit Partners. Socure provides AI-driven digital identity verification and fraud prevention for banks, fintechs and governments.
- 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.
- Cyera raises $600M Series G, . Security. Led by Evolution Equity Partners. Cyera builds an AI-native data security platform that discovers, classifies and protects sensitive data across cloud and on-premises environments.
- Honeycomb raises $40M, . Security. Led by Zeev Ventures. Honeycomb raises $40 million as digital insurance model gains momentum
- Koala raises $20M, . Security. Online retailer Koala raises $20 million for public listing - Startup Daily
- Onyx Security raises $40M Series A, . Security. Led by Conviction, Cyberstarts. Onyx Security provides a control plane to observe, secure and govern enterprise AI agents and models.
- Upwind raises $250M Series B, . Security. Led by Bessemer Venture Partners. Upwind offers a runtime-first cloud security platform that detects and prioritizes exploitable risks in cloud workloads.
- Aikido Security raises $60M Series B, . Security. Led by DST Global. Aikido Security offers a developer-focused platform that unifies code, cloud and runtime security scanning.
- Torq raises $140M Series D, . Security. Led by Merlin Ventures. Torq provides an AI-driven security operations automation platform for SOC teams.
- Cyera raises $400M Series F, . Security. Led by Blackstone. Cyera builds an AI-native data security platform that discovers, classifies and protects sensitive data across cloud and on-premises environments.
- Armis raises $435M, . Security. Led by Goldman Sachs Alternatives. Armis is a cybersecurity company that helps businesses secure and manage internet-connected devices.
- Chainguard raises $280M Growth, . Security. Chainguard provides hardened, minimal container images and open source packages to secure the software supply chain.
- Promptfoo raises $18M Series A, . Security. Led by Insight Partners. Promptfoo builds open-source and enterprise tools for testing and red-teaming LLM applications for security flaws.
- Vanta raises $150M Series D, . Security. Led by Wellington Management. Vanta automates security compliance and trust management, including SOC 2, ISO 27001 and vendor risk.
- Cato Networks raises $359M Series G, . Security. Led by Vitruvian Partners, ION Crossover Partners. Cato Networks sells a cloud-delivered SASE platform that combines networking and security for enterprises.
- DataBahn raises $17M Series A, . Security. Led by Forgepoint Capital. DataBahn runs an AI driven data pipeline platform that collects, routes and governs security and observability telemetry.
- Cyera raises $540M Series E, . Security. Led by Georgian, Greenoaks, Lightspeed Venture Partners. Cyera builds an AI-native data security platform that discovers, classifies and protects sensitive data across cloud and on-premises environments.
- Chainguard raises $356M Series D, . Security. Led by Kleiner Perkins, IVP. Chainguard provides hardened, minimal container images and open source packages to secure the software supply chain.
- Tailscale raises $160M Series C, . Security. Led by Accel. Tailscale provides a WireGuard-based mesh VPN that connects devices and services by identity.
- Straiker raises $21M, . Security. Straiker provides security testing and runtime guardrails for enterprise AI applications and agents.
- Splx raises $7M Seed, . Security. Led by LAUNCHub Ventures. SPLX offers automated red-teaming, remediation and monitoring to secure AI agents and chatbots.
- Oligo Security raises $50M Series B, . Security. Oligo Security provides runtime application security that observes code execution to detect and block exploits.
- Cohesity raises a Series H round, . Security. Led by Haveli Investments. Cohesity sells AI-powered data protection, backup and data security software for enterprises.
- Upwind raises $100M Series A, . Security. Upwind offers a runtime-first cloud security platform that detects and prioritizes exploitable risks in cloud workloads.
- Cyera raises $300M Series D, . Security. Led by Accel, Sapphire Ventures. Cyera builds an AI-native data security platform that discovers, classifies and protects sensitive data across cloud and on-premises environments.
- Zenity raises $38M Series B, . Security. Led by Third Point Ventures, DTCP. Zenity secures and governs AI agents, copilots and low-code applications used inside enterprises.
- Torq raises $70M Series C, . Security. Torq provides an AI-driven security operations automation platform for SOC teams.
- Splx raises $2M Pre-seed, . Security. Led by Inovo.vc. SPLX offers automated red-teaming, remediation and monitoring to secure AI agents and chatbots.
- Abnormal AI raises $250M Series D, . Security. Led by Wellington Management. Abnormal AI uses behavioral AI to detect and block email and SaaS account attacks such as phishing and business email compromise.
- Chainguard raises $140M Series C, . Security. Led by Redpoint Ventures, Lightspeed Venture Partners, IVP. Chainguard provides hardened, minimal container images and open source packages to secure the software supply chain.
- Vanta raises $150M Series C, . Security. Led by Sequoia Capital. Vanta automates security compliance and trust management, including SOC 2, ISO 27001 and vendor risk.
- Promptfoo raises $5M Seed, . Security. Led by Andreessen Horowitz. Promptfoo builds open-source and enterprise tools for testing and red-teaming LLM applications for security flaws.
- Semperis raises $125M Growth, . Security. Led by J.P. Morgan, Hercules Capital. Semperis makes identity threat detection, backup and recovery software for Active Directory and cloud identity systems.
- Huntress raises $150M Series D, . Security. Led by Kleiner Perkins, Meritech Capital. Huntress provides managed endpoint detection and response and identity threat protection for small and midsize businesses and MSPs.
- Aikido Security raises $17M Series A, . Security. Led by Singular. Aikido Security offers a developer-focused platform that unifies code, cloud and runtime security scanning.
- Cohesity raises $150M Series F, . Security. Cohesity sells AI-powered data protection, backup and data security software for enterprises.
- Cyera raises $300M Series C, . Security. Led by Coatue. Cyera builds an AI-native data security platform that discovers, classifies and protects sensitive data across cloud and on-premises environments.
- BigID raises $60M Growth, . Security. Led by Riverwood Capital. BigID makes software that discovers, classifies and protects sensitive data for security, privacy and compliance.
- Axonius raises $200M Series E, . Security. Led by Lightspeed Venture Partners, Accel. Axonius makes a cyber asset management platform that inventories devices, users and software across an organization for IT and security teams.