Company lists · Data refreshed September 2026

Top 24 Cybersecurity management services based in Dallas, United States

RevenueBase identified 173 cybersecurity management services headquartered in Dallas, United States as of September 2026 and tracks 3,088 professional contacts across them, including 1,210 with verified work emails. Across the United States, New York is the largest hub for this category (376 companies); Dallas has 173.

This list covers cybersecurity management services 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
173Companies
3,088Contacts tracked
1,210Verified emails
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The 24 largest cybersecurity management services based in Dallas, United States

Ranked by team size
Top 24 of 173 cybersecurity management services based in Dallas, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity management services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 2026501-1,0001,032 contacts →

Indirect evidence

“As an award-winning, global IT solutions provider, we are changing the nature of transformation.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 20261,001-5,000594 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceDallas, TX, United StatesHQ checked Sep 28, 20261,001-5,000156 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, 2026
4Partial evidenceDallas, TX, United StatesHQ checked Sep 28, 2026201-500154 contacts →

Partial evidence

“SQ1 Security is a global cybersecurity leader offering end-to-end cybersecurity and compliance solution.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceDallas, TX, United StatesHQ checked Sep 28, 202651-20070 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, 2026
6Partial evidenceDallas, TX, United StatesHQ checked Sep 28, 202651-20064 contacts →

Partial evidence

“Apollo Information Systems delivers intelligence-led cybersecurity solutions for government agencies, educational institutions, and enterprises.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceDallas, TX, United StatesHQ checked Sep 28, 202651-20052 contacts →

Partial 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 28, 2026
8Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 202611-5029 contacts →

Indirect evidence

“Rudick Innovation & Technology is an award-winning Managed Service Provider that delivers reliable, enterprise-grade IT solutions for architecture, engineering, and construction…”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 202611-5027 contacts →

Indirect evidence

“Imagine your IT not just as a cost center, but as a dynamic asset boosting your bottom line.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 202611-5026 contacts →

Indirect evidence

“If you’re too busy worrying about technology to focus on running your business, you should know there’s a better way.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 202651-20025 contacts →

Indirect evidence

“SolCyber, a Forgepoint company, is the first modern MSSP to deliver a curated stack of enterprise strength security tools and services that are streamlined, accessible and…”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 202651-20024 contacts →

Indirect evidence

“Voluble Systems LLC.(VOLUBLE) professional services company that provides strategy, custom information technology, information security, consulting, digital, technology…”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 202611-5023 contacts →

Indirect evidence

“As a Managed Service Provider (MSP), we specialize in providing top-notch IT support and solutions to small and medium-sized businesses.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceDallas, TX, United StatesHQ checked Sep 28, 202611-5019 contacts →

Partial evidence

“Beryllium is a cybersecurity and compliance company focused on helping U.S.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 202611-5018 contacts →

Indirect evidence

“Founded in 2011, Clover IT is known as an innovative company, focused on Information Security and Compliance market.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 202611-5015 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, 2026
17Partial evidenceDallas, TX, United StatesHQ checked Sep 28, 202611-5013 contacts →

Partial evidence

“ITECS is a Dallas-based managed IT services provider delivering IT support, cybersecurity, cloud, and AI consulting to businesses across Dallas–Fort Worth since 2002.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 202611-5012 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 28, 2026
19Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 202611-5011 contacts →

Indirect evidence

“Contego Solutions was formed in 2001 to address the operational deficiencies and security concerns of small and medium sized businesses.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 20261-1010 contacts →

Indirect evidence

“We are like an “easy button” for your IT Department!”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 202611-509 contacts →

Indirect evidence

“IntegraMSP - IT Support for the Real World Technology made simple.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 20261-109 contacts →

Indirect evidence

“Cloudavize, established in 2019, is a trusted Managed Service Provider which provides reliable and secure IT services for small and midsize businesses in the Dallas-Fort Worth…”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 20261-109 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 202611-509 contacts →

Indirect evidence

“Technoxi isn't your average IT company, and we never wanted to be.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 24 of 173 cybersecurity management services based in Dallas, United States

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Cybersecurity management services based in Dallas, United States at a glance

As of Sep 28, 2026
39.2%Verified-email coverage
17.8Average contacts per company
11-50Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
83
11-50
64
51-200
16
201-500
5
501-1,000
2
1,001-5,000
2

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 173 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 management services, 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 management services”. 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 management services), 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 management services, 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, 1,210 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 management services by metro in the United States

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 management services, 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 management services are there based in Dallas, United States?

RevenueBase identified 173 cybersecurity management services 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?

GDT, headquartered in Dallas, tops this list with the largest team on record.

Which city in the United States has the most cybersecurity management services?

New York leads the United States with 376 headquartered companies, followed by Houston (242) and Austin (195). Dallas has 173.

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 1,210 verified decision-maker contacts tracked across these 173 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.