Best Cybersecurity Companies in Houston, United States
The 52 best Cybersecurity companies in Houston, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: PAS.
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 Houston
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | PAS Threat detection & vulnerability assessment for ICS/DCS/SCADA | $40M | 112 mo ago | Acquired | — | 1993 | Apple iCloud MailMicrosoft 365Bootstrap+4 | — | — |
| 2 | CodeNotary Provider of a platform offering devOps security solution | $30M | 8 mo ago | Series C | Dennis Zimmer Co-Founder & CTO | 2018 | HubSpot CMS HubEnvoycore-js+12 | 8 patents Patents concentrated in electrical & electronics | — |
| 3 | Prevailion Business compromise analytics platform for threat analysis | $18M | 63 mo ago | Deadpooled | — | 2017 | — | — | — |
| 4 | Bindview Policy, configuration & compliance enforcement software for IT security compliance | $18M | — | Acquired | — | 1990 | — | — | — |
| 5 | Allthenticate Provider of security services | $4M | 4 mo ago | Series A | Rita Mounir Co-Founder and COO | 2009 | Framer SitesVimeoReact+15 | 2 patents Integrated authentication and access control for secure communications | — |
| 6 | Identity Automation Identity and access management solutions for education and healthcare sectors | $3M | 118 mo ago | Acquired | — | 2006 | HubSpot CMS HubApple iCloud MailGoogle Workspace+18 | — | — |
| 7 | Dexa Systems 2FA based IAM solution and consulting service | $2M | 145 mo ago | Deadpooled | Mehrzad Mahdavi ex-CEO | 2009 | — | — | — |
| 8 | Ironclad Encryption Encryption-based data security solution | $1M | 113 mo ago | Deadpooled | — | 2006 | — | 9 patents Secure blockchain-based communication, tokenized access control, and dynamic encryption for data transmission | — |
| 9 | KBCore Patient safety and engagement for healthcare providers | $1M | 122 mo ago | Deadpooled | Douglas Dotan President & CEO | 2000 | — | — | — |
| 10 | RedFlag Web-based application and facebook plugins for parental control | $225K | 174 mo ago | Deadpooled | — | 2011 | — | — | — |
| 11 | RaptorX Online platform utilizing AI and graph analytics for detecting financial fraud and mitigating risks in… | $120K | 14 mo ago | Seed | Pratyusha Vemuri Founder & CEO | 2024 | SanityNode.jsRadix UI+17 | — | 1 job opening |
Top 12 Cybersecurity companies in Houston
#1
Series C · Houston, Texas · founded 2018 · 18 employees$29.5Mraised▾
Provider of a platform offering DevOps security solutions. It provides a solution to notarize and authenticate source code, libraries, builds, and containers in the development process. Its features include code signing, vulnerability scanning, runtime enforcement, etc.
- Nov 2025Series C$16.5M
- Sep 2022Series B$6M
- Jan 2022Series B$12.5M
- Sep 2020Series A$4M
#2
Series A · Houston, Texas · founded 2009 · 5 employees$3.7Mraised▾
Provider of security services
- Mar 2026Series A$5M
- Apr 2024Series A$4.8M
- Jun 2022Seed$3.1M
- Aug 2020Seed$550K
#3
Seed · Houston, Texas · founded 2024$120.4Kraised▾
Online platform utilizing AI and graph analytics for detecting financial fraud and mitigating risks in financial systems. It uses graph analytics to detect risks and prevent cyber threats, aiming to redefine financial resilience. Its platform combines interactive graphs and behavior metrics to assess cyber risks and protect businesses from transaction and identity fraud.
- May 2025Seed$271.5K
- Oct 2024Seed$473K
- May 2024Seed—
- Feb 2024Seed$120.4K
#4
Acquired · Houston, Texas · founded 1993 · 111 employees$40Mraised▾
PAS provides software solutions for safety, cybersecurity, and asset reliability industries. Products include platform-independent alarm management software, DCS configuration management system, cyber asset mapping system and ICS cybersecurity solution. Solution Cyber Integrity, detects cyber-attack by monitoring weaknesses and tracking exposed changes across ICS; Automation Integrity, tracks and audits automation configuration changes for ICS, APC applications, and plant historians; and Project Integrity, delivers automation between hardware, instrumentation, control, and automation connectivity throughout the phases of project execution. Claims to have installation in over 1.1k facilities globally covering over 41k users.
- Mar 2017PE$40M
#5
Deadpooled · Houston, Texas · founded 2017 · 19 employees$18.5Mraised▾
Prevailion provides a business compromise analytics platform that gives preemptive insights to clients on threats originating from their compromised supply chain and the vendor ecosystem. Provides security intelligence and support to enterprises and governments focusing on threats in their compromised systems. The system can identify compromised entities without network incursion and mitigate the spread of cyberattacks. The system identifies details like name, address, contact details and geo-location.
#6
Acquired · Houston, Texas · founded 1990 · 240 employees$18Mraised▾
BindView Development provided a solution to manage cyber vulnerabilities, policy, compliance for IT security in the enterprise. The product enforced regulatory compliance by automating policy and compliance management, vulnerability and configuration management, and directory and access management. Acquired by Symantec in Oct 2005 to strengthen its solution for policy compliance and vulnerability management.
- Conventional Debt$18M
#7
Acquired · Houston, Texas · founded 2006 · 117 employees$3.2Mraised▾
Identity and access management solutions for education and healthcare sectors. The company provides identity lifecycle management, access governance, authentication, and threat detection & response. Classroom solutions include student-teacher portals, rostering, and insights. It offers secure, reliable, and flexible solutions tailored to K-12, higher education, and healthcare. The company focuses on simplifying identity and access management with secure solutions. It provides single sign-on, application rostering, password management, role and group management, self-service password resets, and governance workflows. The company's solutions improve clinical workflows with badge-tap single sign-on capabilities. It offers cloud-based solutions, knowledge base, events, support, and trust center resources.
- Aug 2016Series A$3.2M
- Aug 2014Series A—
#8
Deadpooled · Houston, Texas · founded 2009$1.6Mraised▾
Dexa Systems provided cyber security solution to protect organizations from unauthorized intruders and data theft via authentication system. Its Identity Access and Management (IAM) solution delivered credential management for strong 2-factor authentication (2FA). Iberia Bank had sued the company for defaulting their loan payments in Aug 2015. Dexa was acquired from Schlumberger in 2008 for providing authentication products and consulting services to the energy sector.
- Jun 2014Conventional Debt$1.2M
- Apr 2012Conventional Debt$400K
#9
Deadpooled · Houston, Texas · founded 2006 · 6 employees$1Mraised▾
IronClad Encryption provides an encryption-based data security solution. The company offers a secure gateway which provides a solution for secure communication. The company is also developing a secure mobile to provide privacy protection solution. The products offered by the company can be used to provide a security solution in the sectors such as banking, education, manufacturing, insurance, legal, telecommunication, and retail.
- Feb 2017Seed$1M
#10
Deadpooled · Houston, Texas · founded 2000$1Mraised▾
KBCore is an application developed by CRG medical. The company offers software platform to measure and drastically reduce vulnerability to patient safety threats in hospitals. The KBCore Purple Button application serves as the interoperability component that communicates patient safety event information from the hospital’s existing EHR systems to the PSES by populating Common Formats forms, either automatically or manually. The Purple Button application integrated with the MioCARE A105 Tablet so that doctors can record patient safety events with the device’s barcode scanner, voice recorder or photo capture functionalities. The collected information is instantly encrypted (via Direct Project or other technology provided by CRG Medical’s partners) to securely transfer to a PSES or send to another integrated application.
- May 2016Series A$1M
#11
Deadpooled · Houston, Texas · founded 2011 · 11 employees$225Kraised▾
RedFlag Software provides a web-based application to control social networking access. The flagship product, RedFlag is a facebook plugin for parental control and activity monitoring. Parents receive regular email updates on children's activities. It offers an analysis of a child’s social connections and assigns a unique risk score to each.
- Jan 2012Seed$225K
#12
Seed · Houston, Texas · founded 2023—raised▾
Provider of MFA based IAM solutions. It is a cybersecurity firm that provides user defense against various types of attacks, including phishing, session hijacking, MFA bypass, and man in the middle attacks. It enables stopping of illegitimate access attempts, providing continuous authentication and session cookie protection for users.
- Jul 2024Seed—
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 Houston researches in cybersecurity
University of Houston institutions lead Houston's cybersecurity research, focusing on network security, intrusion detection, and malware detection, with an optimistic tone emphasizing breakthroughs and advancements over concerns.
- University of Houston9
- University of Houston - Clear Lake2
- University of Houston - Victoria2
- University of Houston - Downtown1
- Houston Independent School District1
Common questions
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.