Cybersecurity Startups

The page presents itself as a set of LLM-oriented documentation reminders rather than a standard marketing site. It describes a platform (formerly known as Stack Auth) offering developer apps for connecting with users, including authentication, fraud protection, teams, RBAC, API keys, payments, emails, webhooks, and analytics, delivered via SDKs for JavaScript/TypeScript, Next.js, React, and TanStack Start.

4 investors

Stairwell provides cybersecurity threat intelligence solutions to help teams identify and address security threats. The company serves organizations seeking to strengthen their cybersecurity posture and mission execution.

4 investors

Station70 builds institutional-grade security products for enterprise asset protection, including private key backup and recovery (Bunker) and secrets management (Gatekeeper). The company serves enterprises that depend on critical assets like keys, identities, and access controls, using zero-knowledge cryptography and hardware security modules.

4 investors

Stytch provides an identity and authentication platform for applications and AI agents, offering authentication, authorization, security, and fraud protection features. The platform serves enterprise customers and developers building multi-tenant applications.

4 investors

Supply Wisdom provides third-party risk management (TPRM) tools and risk intelligence to help organizations continuously monitor and assess vendor and enterprise risk across domains. It publishes research such as an annual risk report based on surveys of risk leaders across industries.

4 investors

Swif develops a device and inventory management application that uses AI to eliminate shadow IT and provide businesses with control and visibility over their device security.

4 investors

Swimlane provides an agentic AI security automation platform that lets SOC analysts create, modify, and run playbooks and deploy AI agents for automated investigations and responses. It targets enterprise security operations teams and managed security service providers.

4 investors

Talon develops enterprise browser solutions that provide security controls and threat detection for organizations with remote and hybrid workforces. The platform operates as a browser, extension, and mobile app to manage work-from-anywhere scenarios and control AI/agent usage.

4 investors

Rapid7 provides AI-powered managed cybersecurity operations and detection services for enterprise organizations. The company's Command Platform integrates security data with threat intelligence to help customers manage vulnerabilities, detect threats, and automate security operations at scale.

4 investors

Team8 is a venture capital firm that backs Seed and Series A founders in cybersecurity, software infrastructure, fintech, and digital health, working alongside them from early stages with a team of builders and a network of enterprise C-level leaders.

4 investors

Teleport is an infrastructure identity platform that modernizes identity, access, and policy for computing environments. The company helps engineering teams reduce complexity and attack surface by simplifying trusted computing for critical infrastructure.

4 investors

Telivy provides continuous risk management and vulnerability monitoring for managed service providers (MSPs), combining asset monitoring, vulnerability prioritization, and automated remediation tracking aligned to security frameworks and CIS controls.

4 investors

Theta Lake provides Digital Communications Governance and Archiving (DCGA) software that captures, archives, and supervises unified communications such as voice, video, chat, and email for compliance and security teams. It offers SEC 17a-4 compliant archiving and AI-assisted supervision aimed at regulated organizations managing collaboration tools.

4 investors

4 investors

Tigera provides security and networking management for Kubernetes environments and AI agents through the Calico Platform, offering unified control, visibility, and policy enforcement across distributed workloads and infrastructure.

4 investors

Tofu builds an identity verification system for hiring that validates applicants' credentials to prevent fraud and deepfakes in the recruitment process. The platform serves companies looking to protect against synthetic identities and credential falsification by job applicants.

4 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.

4 investors

Trava delivers red team services that simulate real-world adversary behavior to test an organization's detection and response capabilities across the full attack lifecycle. The service assesses whether security defenses can detect and stop determined attackers, using techniques mapped to the MITRE ATT&CK framework and tailored to each client's environment.

4 investors

TrojAI provides an enterprise AI security platform that monitors and controls AI agents to prevent prompt injection attacks, data leakage, and unauthorized tool use. The platform offers visibility into agent behavior and enforces governance across the full AI lifecycle for organizations deploying agentic systems.

4 investors

Truepic builds enterprise software for verifying the authenticity of digital media and detecting AI-generated content and digital fraud, helping companies identify fraud and improve customer processes. Its technology is applied in areas such as insurance and the financial sector.

4 investors

Truffle Security develops TruffleHog, an open-source secrets scanning tool that identifies and remediates exposed credentials such as encryption keys in cloud and SaaS environments before exploitation. The platform serves security teams and developers protecting their software supply chain.

4 investors

Twosense uses passive biometrics and machine learning for continuous user authentication in enterprise environments, eliminating the need for passwords and physical tokens. The company serves enterprise customers and the US Department of Defense with automated identity verification software.

4 investors

UNGUESS operates a crowdtesting platform that combines a profiled community of testers with proprietary technology to run functional testing, UX research, and security testing for companies. It helps businesses validate digital products and gather end-user feedback to inform product development, serving clients worldwide across e-commerce, apps, connected devices, and B2B platforms.

4 investors

UpGuard provides a platform for managing cybersecurity risk, including third-party vendor and supply chain risk assessment. It is aimed at organizations seeking to evaluate and monitor the security posture of their vendors.

4 investors