Company lists · Data refreshed September 2026

Top 23 Data center cybersecurity services based in Dallas, United States

RevenueBase identified 63 data center cybersecurity services headquartered in Dallas, United States as of September 2026 and tracks 1,599 professional contacts across them, including 870 with verified work emails. Across the United States, New York is the largest hub for this category (121 companies); Dallas has 63.

This list covers data center cybersecurity 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
63Companies
1,599Contacts tracked
870Verified emails
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The 23 largest data center cybersecurity services based in Dallas, United States

Ranked by team size
Top 23 of 63 data center cybersecurity 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 data center cybersecurity 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, 2026501-1,000868 contacts →

Indirect evidence

“DataBank Holdings Ltd.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial 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
3Partial 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
4Partial 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
5Strong evidenceDallas, TX, United StatesHQ checked Sep 28, 202611-5030 contacts →

Strong evidence

“Let’s be honest, relocating a data center is a complicated minefield of potential problems.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect 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
7Indirect 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
8Indirect 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
9Strong evidenceDallas, United StatesHQ checked Sep 28, 202611-508 contacts →

Strong evidence

“In a Data Center world where mergers, acquisitions, business model changes are the rule of thumb, H5 COLO has remained constant for a 15 years.”

Source: RevenueBase Database · checked Sep 28, 2026
10Strong evidenceDallas, TX, United StatesHQ checked Sep 28, 202611-507 contacts →

Strong evidence

“Guardian monitors, manages and secures our clients cloud and data center infrastructure.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 20261-106 contacts →

Indirect evidence

“We are security engineers with over 20 years of experience working in the DFW Metroplex.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 202651-2006 contacts →

Indirect evidence

“GTSaaS stands for Global Technology Sales-as-a-Service.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceDallas, TX, United StatesHQ checked Sep 28, 202611-504 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, 2026
14Strong evidenceDallas, TX, United StatesHQ checked Sep 28, 202611-504 contacts →

Strong evidence

“Carrier-1 owns and operates a 106,866 square foot data center building with up to square feet of planned raised floor space.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceDallas, TX, United StatesHQ checked Sep 28, 202651-2003 contacts →

Partial evidence

“c|g solutions is a premier boutique secure cloud services company, protecting critical data and brand reputations for companies with significant security, compliance, performance…”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 20261-103 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, 2026
17Partial evidenceDallas, TX, United StatesHQ checked Sep 28, 20261-102 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, 2026
18Partial evidenceDallas, TX, United StatesHQ checked Sep 28, 20261-102 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, 2026
19Partial evidenceDallas, TX, United StatesHQ checked Sep 28, 20261-102 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, 2026
20Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 20261-102 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, 2026
21Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceDallas, TX, United StatesHQ checked Sep 28, 20261-101 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, 2026
23Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 20261-101 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 28, 2026

Showing 23 of 63 data center cybersecurity services based in Dallas, United States

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Data center cybersecurity services based in Dallas, United States at a glance

As of Sep 28, 2026
54.4%Verified-email coverage
25.4Average contacts per company
11-50Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
28
11-50
22
51-200
9
201-500
2
501-1,000
1
1,001-5,000
1

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 data center cybersecurity 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 “data center cybersecurity 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 data center cybersecurity 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 data center cybersecurity 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, 870 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.

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 data center cybersecurity 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 data center cybersecurity services are there based in Dallas, United States?

RevenueBase identified 63 data center cybersecurity 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?

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

Which city in the United States has the most data center cybersecurity services?

New York leads the United States with 121 headquartered companies, followed by Atlanta (70) and Houston (68). 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 870 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.