Best Cybersecurity Companies in Dallas, United States
The 58 best Cybersecurity companies in Dallas, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Island.
Our analysis of 71 Cybersecurity companies
$12.5b in tracked funding; 100% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Cybersecurity companies in Dallas
| # | Company | Disclosed funding | Last round | Stage | Employees | Founder | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1440 security 1440 Security is a nationally recognized managed security service provider with a Colorado-based 24/7… | — | — | Acquired | 10 | — | — | — | — |
| 2 | activecyber ActiveCyber specializes in implementing cloud-based Identity and Access Management solutions. | — | — | Unfunded | — | Steven Rogers Co-Founder | — | — | — |
| 3 | Appsian Provider of ERP data security and compliance solutions | — | — | Funding Raised | 216 | Chris Heller Co-Founder | Top 10M | — | — |
| 4 | AT&T Developer Program Communications API for developers | — | — | Unfunded | — | Randall Stephenson CEO | — | — | — |
| 5 | Critical Watch Provider of Cyber Threat Intelligence | — | — | Acqui-Hired | 1,243 | Eva Bunker Founder & CEO | — | 4 patents Network security countermeasure orchestration and management platform | — |
| 6 | CyberAGI Provider of an AI-native platform for full-stack offensive security | — | — | Unfunded | — | Shubham K Founder and CEO | Top 50M | — | — |
| 7 | Entrust Provider of identity-centric security solutions, including issuance and data protection | — | — | Acquired | 108 | Todd Wilkinson President & CEO | Top 500k | 403 patents Patents concentrated in transport & manufacturing processes | — |
| 8 | FrontDor An online platform for team messaging | — | — | Deadpooled | — | Timothy Cook Founder | — | — | — |
Top 12 Cybersecurity companies in Dallas
#1
Island 🦄Series E · Dallas, Texas · founded 2020 · 183 employees$487Mraised▾
Provider of enterprise browser that offers SaaS governance, visibility, and productivity controls. It allows organizations to secure critical data and apps. It provides users with a custom homepage tailored for individual roles, groups, and workplace locations, offering specific workplace apps for productivity and enabling contextual search within the workspace. The solutions provided by the company includes SaaS and web Apps, BYOD workforce, third party contractors, VDI reduction, and many more. It provides customizable auditing capabilities that adapt to the context of user interactions. Platform features automatic phishing protection, web filtering, and exploit prevention mechanisms.
- Feb 2025Series E$250M
- Apr 2024Series D$175M
- Oct 2023Series C$100M
- Nov 2022Series B$60M
#2
Series A · Dallas, Texas · founded 2024$25Mraised▾
Provider of AI-powered security operations platform. This platform augments existing security tools and processes to improve the accuracy, speed, and efficiency of incident response. It uses adaptive learning and institutional knowledge to analyze and resolve security incidents across all tiers, providing contextual analysis and verdicts based on organizational policies. The platform's phased implementation allows for gradual integration and increased trust in AI capabilities. It offers measurable ROI and risk reduction through strategic analytics and key performance indicators. The platform aims to eliminate the trade-off between effectiveness and efficiency in security operations.
- Oct 2025Series A—
- Jan 2025Series A$25M
#3
Series A · Dallas, Texas · founded 2000$30Mraised▾
Provider of cyber risk intelligence to combat targeted and AI-driven threats. It delivers actionable foresight, identifying specific threats to organizations and their ecosystems. The company focuses on targeted attacks, providing clarity into attack vectors and affected systems. It helps dynamically tune security and fraud systems, reduce third-party breach risk, and counter targeted fraud campaigns.
- Jul 2025Series A$30M
#4
Series A · Dallas, Texas · founded 2017 · 34 employees$12Mraised▾
Cloud-based video conferencing suite solutions for enterprises. It offers tools for virtual internal communications, creating meeting rooms, background themes, music add ons, host control systems, attendance trackers, etc. It also allows users to move in virtual space while collaborating with teams.t is a tool available on the subscription based pricing model.
- Dec 2024Series A$2.2M
- Feb 2023Series A$12M
- Dec 2022Series A$8.4M
- Jan 2021Seed$4.6M
#5
Seed · Dallas, Texas · founded 2023$7.6Mraised▾
Verax AI enforces secure, compliant AI use across human users and AI agents with enterprise-wide visibility and control, providing the governance and trust required to realize the full value of AI.
- Oct 2024Seed$7.6M
#6
Acquired · Dallas, Texas · founded 1988 · 543 employees$310Mraised▾
Zix is a cloud-based e-mail security solutions provider. The features of the product include e-mail encryption, e-mail threat prevention, secure file sharing, message privacy, reporting & integration, communication security, cloud migration, defends against breaches & attacks, data loss prevention, etc. It provides solutions to industries such as healthcare, government, real estate, finance, etc.
- Feb 2019Conventional Debt$210M
- Feb 2019Post IPO$100M
#7
Acquired · Dallas, Texas · founded 2002 · 383 employees$55.6Mraised▾
Alert Logic is a network and cloud infrastructure security solutions provider. It provides security-as-a-service solutions for the cloud provides solutions to secure the application and infrastructure stack. It provides a system that analyzes, correlates, and automatically mitigates IT security incidents and vulnerabilities, and an on-premise appliance that monitors network traffic and continuously scans the network for threats and vulnerabilities.
- Jun 2017Conventional Debt$70M
- Apr 2017Series F$6.5M
- Dec 2014Series F$4.2M
- Aug 2013Series F—
#8
Acquired · Dallas, Texas · founded 2010 · 131 employees$60.1Mraised▾
Provider of mobile threat defense and mobile application protection solutions. The company offers solutions for mobile devices and applications, including threat defense, application shielding, and security testing. It caters to various industries, providing security against mobile-first attack strategies. The company delivers protection against phishing, malware, and unauthorized access.
- Jan 2017Series C$15M
- Jun 2016Series C$25.1M
- Feb 2015Series B$12M
- Dec 2013Series A$8M
#9
Series A · Dallas, Texas · founded 2016 · 41 employees$10Mraised▾
Provider of cybersecurity health scorecards. It provides a security intelligence platform that enables organizations to use a framework to map the current security posture. The features of the product include cyber risk analysis and actionable insights, workflow automation, etc.
#10
Acquired · Dallas, Texas · founded 2006 · 350 employees$39.9Mraised▾
Threat intelligence solution for the enterprises. It provides ThreatScape platform which is a threat intelligence platform subscription to defend against new and emerging cyber threats. With intelligence coverage across the global threat landscape and rich, contextual reporting,
- Jan 2015Series C$30M
- Aug 2014Conventional Debt$6.9M
- Jun 2013Series A$3M
#11
Acqui-Hired · Dallas, Texas · founded 1999 · 200 employees$25Mraised▾
DeepNines Technologies provides network security for identity based network defense for content and applications. Its DeepNines gateway products leverage the power to protect, control and manage inbound and outbound Internet traffic. Network Security portfolio includes SWG, NAC, NIPS, network based DLP and internet security assessment. Deep Nines, Inc provides integrated security solutions designed to control Internet threats. It offers Edge Security Profiler, a network monitoring and analysis tool Security Edge System, an intrusion prevention system and a Security Edge Platform, an integrated and unified threat management system that integrates security functionality into a single solution. It also provides iTrust which is a content filtering system to permit and prioritize good Internet traffic, blocks bad online content, and eliminate content filter circumventions and Internet Content Audit for assessment. The solution is agnostic to the type of device attempting to access the network.
- Feb 2007Series A$9M
- Mar 2004Series A$16M
#12
Deadpooled · Dallas, Texas · founded 2007 · 4 employees$8.8Mraised▾
Vericlave provides cybersecurity solutions for the Internet of Things and edge devices. Vericlave performs encryption and autonomous key management and authenticates users at the very edge of the network for delivering protection for critical data enclaves. Provides services in the field of financial services, government facilities, healthcare, energy sector, and the transportation system. Deployed within many U.S government agencies including Department of Defense, U.S Intelligence Community, Federal Bureau of Investigation, and Department of Homeland Security.
- Nov 2014Seed$2M
- Jun 2014Seed$2.5M
- Jun 2014Conventional Debt$2.5M
- May 2014Seed$785K
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Cybersecurity coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
What Dallas researches in cybersecurity
UT Dallas and allied institutions lead Dallas cybersecurity research, focusing optimistically on network intrusion detection and malware analysis, with breakthroughs dominating over concerns.
- The University of Texas at Dallas20
- University of Dallas7
- University of North Texas at Dallas5
- Dallas Independent School District2
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.