Startup list · Global
AI security startups
AI security startups ranked by Dealroom Signal. Company information and rankings are refreshed daily.
$2.6Bcombined funding · 50 companies
United Statestop hub
50companies shown
2unicorns
Current Dealroom classifications: AI Security. Company descriptions must also match the topic. Includes operational companies founded from 1990, with no recorded exit and an available Signal score. The highest scores rank first; funding is shown in USD.
Ranked by Dealroom Signal · Updated 2026-09-16 · Source: Dealroom
Related landscape: Security for AI. This list uses current classifications and may differ from the original selection.
| # | Company | Founded | HQ | Signal | Funding |
|---|---|---|---|---|---|
| 1 |
 X
XBOWUnicorn
Automates penetration testing to identify and exploit software vulnerabilities at scale
|
2024 | Seattle, United States | 95.82 | $272M |
| 2 |
 L
Linx SecurityFast growing
AI-powered identity security and governance platform.
|
2023 | New York City, United States | 94.67 | $89M |
| 3 |
 D
depthfirstFast growing
AI-native security platform for code vulnerability remediation
|
2024 | San Francisco, United States | 93.65 | $141M |
| 4 |
 L
LegionFast growing
Browser-native AI SOC platform automating analyst workflows
|
2024 | New York City, United States | 93.57 | $38M |
| 5 |
 G
Geordie AIFast growing
Agent-native security platform for governing autonomous AI
|
2025 | London, United Kingdom | 93.51 | $43M |
| 6 |
 I
InferactFast growing
Open-source inference engine for scaling AI models cheaper and faster
|
2025 | San Francisco, United States | 93.04 | $150M |
| 7 |
 O
Orion SecurtiyFast growing
Offering AI-powered observability solutions for data security
|
2024 | Tel Aviv-Yafo, Israel | 93.02 | $44M |
| 8 |
 K
KaiFast growing
Agentic AI platform for autonomous cybersecurity operations
|
2025 | San Jose, United States | 92.30 | $125M |
| 9 |
 M
MindgardFast growing
Automated security testing and red teaming for AI
|
2022 | London, United Kingdom | 92.24 | $42M |
| 10 |
 T
TeleskopeFast growing
Teleskope automates data security, privacy, and compliance for businesses with data classification and redaction services
|
2022 | New York City, United States | 92.11 | $39M |
| 11 |
 E
Eve SecurityFast growing
Agentic AI security and observability enforcement platform
|
2025 | Austin, United States | 91.78 | $8M |
| 12 |
 R
RunlayerFast growing
Enterprise security platform for AI Model Context Protocol
|
2025 | United States | 91.57 | $41M |
| 13 |
 S
Sycamore LabsFast growing
Trusted agent operating system for enterprise AI
|
2025 | Palo Alto, United States | 91.56 | $65M |
| 14 |
 N
NativeFast growing
Unified control plane for multi-cloud security enforcement
|
2024 | Seattle, United States | 91.56 | $42M |
| 15 |
 N
NeuralTrustFast growing
Security platform for generative AI and LLM applications
|
2022 | Barcelona, Spain | 91.39 | $22M |
| 16 |
 T
TreelineFast growing
Modern IT operating system for automated corporate infrastructure
|
2025 | San Francisco, United States | 90.72 | $25M |
| 17 |
 C
CraniumFast growing
Cranium provides AI security solutions for organizations, addressing visibility, security, and governance risks and extending support to the Azure OpenAI Service
|
2023 | Millburn, United States | 90.45 | $32M |
| 18 |
 K
Keycard LabsFast growing
Integration layer for AI agents and global identity network, enhancing machine identity and access control for AI workloads
|
2025 | Cole Harbour, Canada | 90.15 | $38M |
| 19 |
 J
JetStream SecurityFast growing
AI governance platform providing visibility and control
|
2025 | Santa Clara, United States | 89.96 | $34M |
| 20 |
 P
Pramaana LabsFast growing
Conversational AI platform for enterprise data analysis
|
2025 | San Francisco, United States | 89.80 | $27M |
| 21 |
 L
Lasso SecurityFast growing
Comprehensive cybersecurity for Large Language Models (LLMs), safeguarding against threats such as model theft, malicious code generation, and prompt injection
|
2023 | Tel Aviv-Yafo, Israel | 89.00 | $39M |
| 22 |
 O
Opti AIFast growing
AI-native identity security platform for enterprises
|
2023 | Israel | 88.73 | $35M |
| 23 |
 F
Frame SecurityFast growing
AI-powered human risk and security awareness platform.
|
2025 | New York City, United States | 88.65 | $50M |
| 24 |
 C
ConductorAIFast growing
Conductor AI is your AI Compliance Platform
|
2023 | New York City, United States | 88.63 | $15M |
| 25 |
 B
Backslash SecurityFast growing
Application security platform for AI-native software development.
|
2022 | Tel Aviv-Yafo, Israel | 88.40 | $27M |
| 26 |
 R
Rein SecurityFast growing
Runtime application security with real-time production visibility.
|
2024 | New York City, United States | 87.94 | $8M |
| 27 |
 K
KonaSense
AI security platform for governing employee interactions
|
2025 | Tampa, United States | 87.79 | — |
| 28 |
 S
Sondera
AI agent monitoring and security policy enforcement
|
2025 | — | 87.28 | — |
| 29 |
 B
Backline AIFast growing
Backline's AI agents automate the deployment of secure code and configuration changes
|
2024 | San Francisco, United States | 87.12 | $9M |
| 30 |
 C
Clover SecurityFast growing
AI agents for proactive, design-led product security
|
2023 | New York City, United States | 87.10 | $42M |
| 31 |
 C
CorridorFast growing
AI-powered platform for secure software development
|
2025 | San Francisco, United States | 87.10 | $30M |
| 32 |
 W
WillowFast growing
Enterprise AI agent identity and access management.
|
2025 | New York City, United States | 86.94 | $7M |
| 33 |
 E
Evoke SecurityFast growing
AI detection and response platform for securing AI agents
|
2025 | United States | 86.62 | $4M |
| 34 |
 N
NeoFast growing
AI security platform protecting enterprise AI applications, agents and models
|
2025 | Boston, United States | 86.59 | $100M |
| 35 |
 M
Mate SecurityFast growing
AI-powered platform for security operations center optimization
|
2025 | Herzliya, Israel | 86.54 | $51M |
| 36 |
 C
CrackenAGIFast growing
AI copilot for offensive security testing.
|
2023 | Palo Alto, United States | 86.48 | $5M |
| 37 |
 N
NoveeFast growing
AI-powered continuous penetration testing and vulnerability remediation
|
2025 | Tel Aviv-Yafo, Israel | 86.42 | $52M |
| 38 |
 T
Tenet SecurityFast growing
Runtime security and monitoring for autonomous AI agents.
|
2025 | New York City, United States | 86.30 | $6M |
| 39 |
 A
AirrivedFast growing
Enterprise agentic AI platform for cybersecurity applications
|
2024 | Dublin, United States | 85.89 | $6M |
| 40 |
 M
Manifold SecurityFast growing
AI detection and response for agentic endpoints.
|
2025 | United States | 85.85 | $8M |
| 41 |
 H
Helmet SecurityFast growing
End-to-end security for agentic AI communications infrastructure
|
2025 | United States | 85.66 | $9M |
| 42 |
 P
pi-labs.ai
AI-powered cybersecurity and intelligence solutions for enterprises
|
2024 | Pune, India | 85.56 | — |
| 43 |
 O
Onit SecurityFast growing
AI-powered agentic exposure management and vulnerability remediation.
|
2025 | Israel | 85.24 | $11M |
| 44 |
 O
Orca SecurityUnicorn
Provides cloud-wide, workload-deep security and compliance for AWS, Azure, and GCP - without agents
|
2019 | Portland, United States | 85.18 | $632M |
| 45 |
 M
Maro
Cognitive security platform managing human risk factors
|
2024 | United States | 84.20 | $4M |
| 46 |
 A
Amodo Design
Full-stack engineering consultancy for deep-tech hardware development
|
2022 | Sheffield, United Kingdom | 84.08 | $2M |
| 47 |
 S
Symmetry AI
AI-powered data security posture management platform
|
2025 | United States | 84.05 | — |
| 48 |
 B
Bluejay
QA platform for AI agents, simulating edge cases, ensuring security, and benchmarking performance with real-time insights
|
2025 | San Francisco, United States | 84.01 | $4M |
| 49 |
 N
Nightfall AI$25M+ revenue
Nightfall identifies business-critical data across SaaS, APIs, and data infrastructure so it can be managed and protected
|
2018 | San Francisco, United States | 83.94 | $60M |
| 50 |
 A
Attestable
AI trust-layer technology ensuring system integrity.
|
2025 | Tel Aviv-Yafo, Israel | 83.75 | $20M |
Track ai security
Get the full dataset — funding rounds, investors, signals and new entrants — in the Dealroom platform.
Book a demo