Company lists · Data refreshed September 2026
Top 25 Infrastructure security companies based in Dallas, United States
RevenueBase identified 76 infrastructure security companies headquartered in Dallas, United States as of September 2026 and tracks 1,007 professional contacts across them, including 281 with verified work emails. Across the United States, New York is the largest hub for this category (142 companies); Dallas has 76.
This list covers infrastructure security companies headquartered in Dallas, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest infrastructure security companies based in Dallas, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 156 contacts → | ||||
Partial evidence “AT & T Cybersecurity’s Edge-to-Edge technologies provide phenomenal threat intelligence, collaborative defense, security without the seams, and solutions that fit your business.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 154 contacts → | ||||
Partial evidence “SQ1 Security is a global cybersecurity leader offering end-to-end cybersecurity and compliance solution.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 89 contacts → | ||||
Indirect evidence “At Configure, we don’t just connect networks, we connect people, ideas, and possibilities.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 70 contacts → | ||||
Indirect evidence “Zyston is a next‑generation cybersecurity partner dedicated to helping organizations stay one step ahead of threats.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 64 contacts → | ||||
Indirect evidence “Apollo Information Systems delivers intelligence-led cybersecurity solutions for government agencies, educational institutions, and enterprises.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 52 contacts → | ||||
Indirect evidence “OakTruss Group is an advisory firm focused on helping organizations operate securely at the intersection of cybersecurity, AI, and data.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 15 contacts → | ||||
Indirect evidence “At Upstart Cyber, we bring the expertise gained from government and large-scale businesses to organizations of all sizes.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 12 contacts → | ||||
Indirect evidence “Willow Bend Systems is a trusted IT partner for organizations across the Dallas–Fort Worth Metroplex and North Texas that want technology to support their business, not complicate…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 10 contacts → | ||||
Indirect evidence “We are like an “easy button” for your IT Department!” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 9 contacts → | ||||
Indirect evidence “Technoxi isn't your average IT company, and we never wanted to be.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 7 contacts → | ||||
Indirect evidence “Did you know that the IT Industry is completely unregulated?” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 6 contacts → | ||||
Partial evidence “We are security engineers with over 20 years of experience working in the DFW Metroplex.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 6 contacts → | ||||
Partial evidence “TTR Technology Provides Complete Managed IT support and Cyber Security Solution to businesses Nationwide, our Mission is to efficiently manage, monitor, and optimize IT…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 6 contacts → | ||||
Indirect evidence “GTSaaS stands for Global Technology Sales-as-a-Service.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 4 contacts → | ||||
Partial evidence “ASI Security Partners, a leading network and internet security company, delivers a comprehensive set of best-of-breed solutions that help customers protect their critical…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 4 contacts → | ||||
Indirect evidence “Birch Cline is a Dallas, Texas-based cybersecurity firm that specializes in protecting highly regulated environments and government agencies.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 contacts → | ||||
Indirect evidence “Method is here to assist its clients in protecting their vital information from the plethora of cyber-attacks occurring within all business segments.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 contacts → | ||||
Partial evidence “Dallas-based firm delivering strategic cybersecurity solutions that close critical security gaps and enable business growth.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 contacts → | ||||
Indirect evidence “At Quatronics, we are more than just a cybersecurity consulting firm; we are your dedicated ally in safeguarding your digital assets and ensuring a resilient and secure business…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Partial evidence “Cyber Defense Labs is a full life-cycle information security service provider helping companies manage, detect and respond to today’s cyber risks.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence “We specialize in delivering next-generation cybersecurity solutions, cloud networking services, virtualization expertise, and comprehensive system administration.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Indirect evidence “SLVA’s expertise has been hard won in the trenches of banks and financial services, healthcare, telecommunications, retail, utilities, and government organizations.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Partial evidence “Cyberdors is a cybersecurity advisory and managed services firm helping organizations identify risks, build security strategies, and stay protected.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “Cybersecurity advisory and managed services.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Indirect evidence “We offer an extensive range of consulting services tailored to meet the diverse needs of our customers.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: infrastructure security companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names infrastructure security companies.
- Partial evidence
- Its own public description names part of infrastructure security companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name infrastructure security companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 76 infrastructure security companies based in Dallas, United States
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Infrastructure security companies based in Dallas, United States at a glance
As of Sep 14, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Dallas, so it is reported there. Company counts and contact totals on this page are exact for Dallas, over 76 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among infrastructure security companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Dallas, United States whose own description of what they do matches “infrastructure security companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names infrastructure security companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among infrastructure security companies, and records with no verified work email. Companies headquartered outside Dallas are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 281 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 14, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Infrastructure security companies by metro in the United States
- Infrastructure security companies in New York142
- Infrastructure security companies in Houston102
- Infrastructure security companies in Washington96
- Infrastructure security companies in Austin89
- Infrastructure security companies in Atlanta83
- Infrastructure security companies in Miami82
- Infrastructure security companies in Chicago78
- Infrastructure security companies in Tampa71
- Infrastructure security companies in San Francisco57
- Infrastructure security companies in Charlotte47
- Infrastructure security companies in Columbia47
- Infrastructure security companies in San Diego47
- Infrastructure security companies in Los Angeles46
- Infrastructure security companies in Orlando44
- Infrastructure security companies in Arlington41
- Infrastructure security companies in Las Vegas40
- Infrastructure security companies in Reston40
- Infrastructure security companies in Boston39
- Infrastructure security companies in Denver38
- Infrastructure security companies in San Antonio36
- Infrastructure security companies in Phoenix35
- Infrastructure security companies in Alexandria34
- Infrastructure security companies in Huntsville33
- Infrastructure security companies in Fairfax31
- Infrastructure security companies in Mclean31
- Infrastructure security companies in Baltimore30
- Infrastructure security companies in Herndon28
- Infrastructure security companies in San Jose28
- Infrastructure security companies in Seattle28
- Infrastructure security companies in Scottsdale27
- Infrastructure security companies in Wilmington27
- Infrastructure security companies in Fort Lauderdale25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names infrastructure security companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many infrastructure security companies are there based in Dallas, United States?
RevenueBase identified 76 infrastructure security companies headquartered in Dallas, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
At&t Cybersecurity, headquartered in Dallas, tops this list with the largest team on record.
Which city in the United States has the most infrastructure security companies?
New York leads the United States with 142 headquartered companies, followed by Houston (102) and Washington (96). Dallas has 76.
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 281 verified decision-maker contacts tracked across these 76 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 14, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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