Cybersecurity Startups
4,352 companies tagged Cybersecurity, with their investors and founders.
Tamnoon offers an AI-assisted cloud security remediation service that triages, prioritizes, and fixes cloud misconfiguration alerts from CNAPP and cloud security tools. Its AI agent Tami, combined with human cloud security experts, groups findings into remediation initiatives and validates fixes in production to reduce alert backlogs and shorten mean time to remediation for security and engineering teams.
7 investors
Teleport provides an identity platform that unifies identities for humans, machines, and AI to secure access to production infrastructure and defend against identity-based attacks. It is aimed at engineering teams managing distributed infrastructure.
7 investors
Teleskope offers a data security platform with a "Data Reasoning Layer" that discovers, classifies, and automatically remediates sensitive data exposure across an organization's environment. It targets security and compliance teams, controlling data reaching external AI tools and LLMs, managing data sprawl, and enforcing least-privilege access and retention policies.
7 investors
Ray is an AI suite within ThetaRay's Investigation Center that automates and standardizes anti-money-laundering (AML) case investigations, generating structured end-to-end investigation reports and providing an on-demand AI assistant for analysts. It works on top of ThetaRay's transaction monitoring solution and serves financial crime and AML compliance teams at banks, fintechs, PSPs, correspondent banks, remittance companies, and digital banks.
7 investors
Tidal Cyber develops tools and services that help enterprises adopt MITRE ATT&CK framework for threat-informed defense. The platform operates vendor-independently to provide practical and affordable security capabilities for enterprise customers and solution providers.
7 investors
Toka develops intelligence and force protection technology for government militaries, law enforcement, and intelligence agencies to conduct surveillance, counter-terrorism, and defense operations. The company focuses on signals intelligence and operational capabilities for trusted allied governments.
7 investors
Transcend provides a real-time data governance and decision layer that encodes business policy, regulatory context, and customer permissions into systems processing customer data, answering "Can I use this data?" at runtime. It targets enterprises seeking to enable AI, agentic, personalization, and first-party data initiatives while enforcing consent and privacy across systems, brands, and regions.
7 investors
Transmit Security provides an enterprise platform that combines customer identity and access management (CIAM) with fraud prevention and identity verification, using predictive AI to detect fraud and secure customer access. It targets enterprises, including finance and eCommerce sectors, addressing identity and fraud challenges in the age of agentic AI.
7 investors
Twenty builds industrial-scale offensive and defensive cyber capabilities and software for military and national security missions, serving the U.S. government and its allies. The company focuses on cyber warfare systems designed to operate under combat conditions.
7 investors
Untangle developed network security software for small and mid-sized businesses, offering firewall, content filtering, and network management through its NG Firewall platform. It was acquired by Arista Networks in 2022 to bolster Arista's security offerings.
7 investors
Upstream develops Ocean AI, an artificial intelligence tool for automotive and IoT cybersecurity that helps security analysts investigate threats in connected vehicles through a conversational interface for querying and analyzing security data.
7 investors
Upwind is a cloud and AI security platform that combines a runtime intelligence layer with agentless and eBPF-based sensors to correlate cloud inventory, posture, network topology, applications, and identities into a single operational view. It serves enterprise security and DevOps teams for cloud-native application protection (CNAPP), threat detection, vulnerability prioritization, and API security.
7 investors
ValidMind Agent Authority is a control layer that sits in the call path of AI agents to intercept, evaluate, and rule on whether each business action is permitted before it executes, then records an audit trail. Built for enterprises—particularly regulated industries like banking—deploying agentic AI, it is model- and platform-independent and built on the open-source Atryum control layer.
7 investors
Veesion provides AI-powered video surveillance software that analyzes gestures from a store's existing cameras to detect shoplifting behaviors and send short alert clips to staff. It serves retailers such as grocery and convenience stores to help prevent repeat theft.
7 investors
Venafi, now part of CyberArk as CyberArk Machine Identity Security, provides machine identity security including certificate lifecycle management, enterprise PKI, workload identity management, secure code signing, and SSH security. It serves enterprise IT and security teams managing machine identities across devices, applications, APIs, and cloud-native environments.
7 investors
Virtru provides a data security platform that applies encryption and attribute-based access controls to sensitive data shared via email, files, and SaaS apps, letting organizations set granular access policies while retaining control of their encryption keys. It serves small businesses, enterprises, and government/public sector organizations with compliance needs such as CMMC, ITAR, and CJIS.
7 investors
Wallarm provides an AI security and API security platform that discovers AI workloads, monitors runtime behavior, enforces policy inline, and generates continuous compliance evidence such as EU AI Act mapping. It is built for enterprises running AI on AWS, using kernel-level instrumentation to observe and protect AI agents and the APIs they call.
7 investors
Web3Auth provides non-custodial authentication and key management to give users simple, secure access to digital assets and identity across multiple blockchain platforms and applications. It targets developers and Web3 applications seeking to reduce onboarding friction for digital ownership and identity.
7 investors
Whistic provides a third-party risk management (TPRM) platform that uses AI to automate vendor due diligence and security assessments for enterprise risk teams.
7 investors
AWS Wickr is an enterprise-grade secure communication platform offering end-to-end encrypted messaging, voice, and video collaboration for organizations handling sensitive information, with compliance certifications including FedRAMP High and DoD IL4/5.
7 investors
WitnessAI builds an AI-native security platform that helps enterprises protect and accelerate their AI adoption across evolving AI tech stacks. The platform provides a confidence layer for enterprise AI, enabling organizations to deploy AI safely and at scale.
7 investors
Xage builds zero trust access and security solutions to protect critical infrastructure systems and prevent cyberattacks. The company serves organizations across energy, manufacturing, logistics, and the public sector.
7 investors
ZeroEyes provides AI-based visual weapon detection software that integrates with existing security cameras to analyze live video feeds for visible firearms in real time, with detections verified by trained analysts in its operations center before alerts are dispatched to personnel and law enforcement. It serves schools, campuses, and facilities across multiple U.S. states.
7 investors
Adaptive Security provides security awareness training, phishing attack simulation, and email security solutions designed to defend against AI-powered attacks, deepfakes, and social engineering threats. The company serves enterprise organizations seeking to protect employees and data from next-generation security risks.
6 investors

















