Austin Cybersecurity Companies

Cybersecurity companies headquartered or building in Austin, Texas

A community-maintained directory of cybersecurity and information security companies with roots or real teams in Austin. Missing someone, or something out of date? Send a fix.

  • Absolute Security

    Firmware-embedded endpoint resilience that detects threats, isolates devices, and restores them to secure states

    Endpoint Acquired
    Careers

  • ALTR Austin HQ

    Data security that classifies, masks, encrypts, and monitors access to sensitive data across cloud stacks

    Data Security Growth
    Careers

  • atsec information security Austin HQ

    Independent lab for security testing, evaluation, and certification of IT and cryptographic products

    Services Growth

  • AttackIQ

    Breach and attack simulation that emulates adversaries to continuously test security controls

    Offensive Late-stage

  • BalkanID Austin HQ

    Identity governance for access reviews, lifecycle management, and non-human and AI identities

    Identity Early
    Careers

  • Brinqa Austin HQ

    Exposure management that correlates vulnerability data to prioritize remediation across the environment

    GRC Growth

  • CertifID Austin HQ

    Wire fraud prevention and payment verification for real estate closings, buyers, sellers, and agents

    Fraud Growth
    Careers

  • Chaotic Good Information Security Austin HQ

    Penetration testing, executive hardening, and continuous offensive security assessments

    Offensive Early

  • Clarity Security Austin HQ

    Identity governance that discovers and remediates risk across human, non-human, and AI identities

    Identity Early

  • Closinglock Austin HQ

    Secure payments and wire fraud prevention for real estate closings and title companies

    Fraud Acquired by CertifID (2026)

  • Cloudflare

    Global network providing CDN, DDoS protection, WAF, and zero trust access for websites and apps

    Network Public
    Careers

  • Command Zero Austin HQ

    Autonomous investigation of security alerts and incidents for SOC teams

    Other Early
    Careers

  • CrowdStrike Austin HQ

    Falcon platform that stops breaches across endpoints, cloud workloads, identities, and AI systems

    Endpoint Public
    Careers

  • DryRun Security Austin HQ

    Reviews pull requests for security flaws in both human-written and AI-generated code

    AppSec Early

  • Eve Security Austin HQ

    Runtime firewall that checks AI agent actions against policy before they execute

    Other Early

  • Evo Security Austin HQ

    Multi-tenant MFA, SSO, and privileged access management built for managed service providers

    Identity Acquired by Barracuda (2026)

  • Evoke Security Austin HQ

    Detection and response for AI agents across endpoints, web, and cloud

    Other Early

  • Exodus Intelligence Austin HQ

    Zero-day and N-day vulnerability research with exploit intelligence and detection rules for defenders

    Offensive Growth

  • Fleet

    Open-source device management and osquery-based visibility for macOS, Windows, Linux, iOS, and Android

    Endpoint Growth

  • Forcepoint Austin HQ

    Data security that finds sensitive data and stops leaks across cloud, web, email, and AI tools

    Data Security Late-stage
    Careers

  • Ghost Security Austin HQ

    Autonomous security agents for application security that run inside your own infrastructure

    AppSec Early

  • HackNotice Austin HQ

    Monitors breaches, leaked credentials, and dark-web exposure affecting employees and third-party vendors

    Threat Intel Early

  • Halcyon Austin HQ

    Anti-ransomware platform that prevents, detects, and recovers from ransomware encryption and data theft

    Endpoint Late-stage
    Careers

  • HiddenLayer Austin HQ

    Security for AI models and agentic, generative, and predictive AI applications across their lifecycle

    Other Growth
    Careers

  • Hydden

    Identity discovery and visibility across human users, service accounts, and AI agents

    Identity Early

  • Hypori

    Virtual mobile workspace giving secure enterprise app access on personal devices without touching personal data

    Endpoint Growth
    Careers

  • IBM X-Force Red

    IBM's offensive security team doing penetration testing and adversary simulation across apps, networks, and AI

    Offensive Public

  • Infocyte Austin HQ

    Endpoint threat hunting and EDR that finds malware and attackers already inside networks

    Endpoint Acquired by Datto (2022)

  • InQuest

    Network threat detection using deep file inspection and retrohunting for government and enterprise networks

    Threat Intel Acquired by OPSWAT (2024)

  • Intrigue Austin HQ

    Attack surface management that discovers and monitors an organization's internet-facing assets and exposures

    Offensive Acquired by Mandiant (2021)

  • Invicti Austin HQ

    Application security testing that finds and prioritizes vulnerabilities in web applications and APIs

    AppSec Late-stage
    Careers

  • Keep Aware Austin HQ

    Browser security that detects threats and prevents data loss in web and AI tools

    Endpoint Acquired by Jamf (2026)

  • Living Security Austin HQ

    Human risk management that finds the riskiest employees and targets training and remediation to them

    GRC Growth
    Careers

  • Mallory Austin HQ

    Threat and exposure management that matches threat intelligence against your attack surface

    Threat Intel Early
    Careers

  • Micro Evaluation Group (MEG) Austin HQ

    Penetration testing, reverse engineering, and hardware and software security assurance

    Services Early

  • NetRise Austin HQ

    Analyzes compiled software and firmware to build SBOMs and find hidden supply chain risks

    Other Acquired by Accenture / Dragos (2026)

  • NinjaOne Austin HQ

    IT operations platform for endpoint management, patching, backup, and remote access in one console

    Endpoint Late-stage
    Careers

  • Nudge Security Austin HQ

    Discovers and secures SaaS and AI apps, including shadow IT, by guiding employee behavior

    Cloud Early
    Careers

  • Ontic Austin HQ

    Security management software that tracks and responds to physical threats to people, workplaces, and assets

    Other Late-stage
    Careers

  • Passage Austin HQ

    Passkey and passwordless login SDKs and APIs for developers adding authentication to apps

    Identity Acquired by 1Password (2022)

  • Perpetual Systems Austin HQ

    Security data lake with an AI agent that triages and investigates SOC alerts

    Other Early

  • Ping Identity

    Identity and access management for employees, partners, and customer logins

    Identity Acquired
    Careers

  • Portnox Austin HQ

    Cloud-native network access control and zero trust access for users, devices, and applications

    Network Growth
    Careers

  • Praetorian Austin HQ

    Continuous offensive security testing that finds exploitable weaknesses before attackers do

    Offensive Growth
    Careers

  • Rapid7

    Threat detection, vulnerability management, and managed detection and response for security teams

    Other Public
    Careers

  • Recon InfoSec Austin HQ

    Managed detection and response and security operations for mid-market companies

    Services Early

  • Riscosity Austin HQ

    Data firewall that monitors and controls sensitive data flowing to AI and third-party vendors

    Data Security Early

  • Root Evidence

    Vulnerability scanning and reporting backed by a warranty covering cyber losses

    Other Early

  • RunReveal Austin HQ

    Security log management and detection that unifies log ingestion, threat detection, and response

    Other Acquired by ClickHouse (2026)

  • runZero Austin HQ

    Asset discovery and exposure management across IT, OT, IoT, cloud, and mobile

    Network Acquired by Accenture / Dragos (2026)

  • SailPoint Austin HQ

    Identity security that discovers, governs, and secures access for human and non-human identities

    Identity Public
    Careers

  • SEON Austin HQ

    Fraud and anti-money-laundering detection across onboarding, payments, and ongoing transaction monitoring

    Fraud Late-stage
    Careers

  • Sevco Security Austin HQ

    Asset intelligence that finds devices missing security tools, agents, or management across IT and cloud

    Other Acquired by Arctic Wolf (2026)

  • Siemplify

    SOAR platform automating alert triage, case management, and incident response for SOCs

    Other Acquired by Google (2022)

  • SolarWinds Austin HQ

    Observability and IT management software for applications, networks, databases, and hybrid infrastructure

    Other Acquired by Turn/River Capital (2025)
    Careers

  • Spektion Austin HQ

    Endpoint vulnerability management that finds exploitable software risks, including flaws without CVEs

    Endpoint Early
    Careers

  • SpyCloud Austin HQ

    Finds stolen credentials and identity data from the dark web to stop account takeover and fraud

    Threat Intel Acquired
    Careers

  • Synack

    Crowdsourced penetration testing combining vetted researchers and automation for continuous vulnerability discovery

    Offensive Acquired by Merged with NetSPI (2026)

  • Thales Cloud Protection & Licensing

    Data encryption, key management, identity, application security, and software licensing for enterprises

    Data Security Public

  • Theori Austin HQ

    Offensive security research and automated vulnerability discovery for applications, AI systems, and networks

    Offensive Growth

  • Trustwise Austin HQ

    Runtime control that authorizes AI agent actions against enterprise policy before they execute

    Other Early

  • Veridise Austin HQ

    Smart contract audits and formal-methods tools for blockchain, DeFi, and zero-knowledge systems

    AppSec Early
    Careers

  • Verosint Austin HQ

    Identity threat detection that spots account takeover, fake accounts, and fraud at login

    Fraud Acquired by Imprivata