Company lists · Data refreshed September 2026
Top 20 Cybersecurity services for small business based in Dallas, United States
RevenueBase identified 63 cybersecurity services for small business headquartered in Dallas, United States as of September 2026 and tracks 642 professional contacts across them, including 194 with verified work emails. Across the United States, New York is the largest hub for this category (124 companies); Dallas has 63.
This list covers cybersecurity services for small business 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 28, 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 20 largest cybersecurity services for small business 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 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 70 contacts → | ||||
Partial evidence “Zyston is a next‑generation cybersecurity partner dedicated to helping organizations stay one step ahead of threats.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 64 contacts → | ||||
Partial evidence “Apollo Information Systems delivers intelligence-led cybersecurity solutions for government agencies, educational institutions, and enterprises.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 10 contacts → | ||||
Indirect evidence “We are like an “easy button” for your IT Department!” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 7 contacts → | ||||
Indirect evidence “Did you know that the IT Industry is completely unregulated?” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 6 contacts → | ||||
Indirect evidence “We are security engineers with over 20 years of experience working in the DFW Metroplex.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 6 contacts → | ||||
Indirect 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 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 6 contacts → | ||||
Partial evidence “CyBase Risk is a catalyst cyber risk management consulting firm, dedicated to empowering small and medium-sized businesses (SMBs) with insight and roadmaps to proactively protect…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 5 contacts → | ||||
Indirect evidence “At Logos Systems we are a security and vCISO services provider.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 4 contacts → | ||||
Indirect 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 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 4 contacts → | ||||
Partial 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 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 4 contacts → | ||||
Strong evidence “Attainable Security is dedicated to helping small and medium sized business achieve meaningful steps towards a better cybersecurity posture.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 2 contacts → | ||||
Partial 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 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 contacts → | ||||
Indirect 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 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 contacts → | ||||
Partial evidence “We specialize in delivering next-generation cybersecurity solutions, cloud networking services, virtualization expertise, and comprehensive system administration.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 28, 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: cybersecurity services for small business. 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 cybersecurity services for small business.
- Partial evidence
- Its own public description names part of cybersecurity services for small business, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cybersecurity services for small business. 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 20 of 63 cybersecurity services for small business based in Dallas, United States
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Cybersecurity services for small business based in Dallas, United States at a glance
As of Sep 28, 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 63 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 cybersecurity services for small business, 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 “cybersecurity services for small business”. 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 cybersecurity services for small business), 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 cybersecurity services for small business, 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, 194 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 28, 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.
Cybersecurity services for small business by metro in the United States
- Cybersecurity services for small business in New York124
- Cybersecurity services for small business in Austin84
- Cybersecurity services for small business in Houston84
- Cybersecurity services for small business in Atlanta77
- Cybersecurity services for small business in Miami71
- Cybersecurity services for small business in Chicago67
- Cybersecurity services for small business in Washington62
- Cybersecurity services for small business in San Diego58
- Cybersecurity services for small business in Tampa53
- Cybersecurity services for small business in Los Angeles45
- Cybersecurity services for small business in San Francisco45
- Cybersecurity services for small business in Las Vegas42
- Cybersecurity services for small business in Denver40
- Cybersecurity services for small business in Charlotte36
- Cybersecurity services for small business in Columbia36
- Cybersecurity services for small business in San Antonio36
- Cybersecurity services for small business in Orlando35
- Cybersecurity services for small business in Arlington34
- Cybersecurity services for small business in Phoenix34
- Cybersecurity services for small business in Boston32
- Cybersecurity services for small business in Alexandria27
- Cybersecurity services for small business in Raleigh27
- Cybersecurity services for small business in Baltimore26
- Cybersecurity services for small business in Irvine26
- Cybersecurity services for small business in Portland25
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 cybersecurity services for small business, 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 cybersecurity services for small business are there based in Dallas, United States?
RevenueBase identified 63 cybersecurity services for small business 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 cybersecurity services for small business?
New York leads the United States with 124 headquartered companies, followed by Austin (84) and Houston (84). Dallas has 63.
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 194 verified decision-maker contacts tracked across these 63 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 28, 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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