Company lists · Data refreshed September 2026

Top 24 Cybersecurity transformation services based in Dallas, United States

Name: Cybersecurity transformation services based in Dallas, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 135 companies tracked

RevenueBase identified 135 cybersecurity transformation services headquartered in Dallas, United States as of September 2026 and tracks 3,081 professional contacts across them, including 1,081 with verified work emails. Across the United States, New York is the largest hub for this category (204 companies); Dallas has 135.

This list covers cybersecurity transformation 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

135Companies

3,081Contacts tracked

1,081Verified emails

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The 24 largest cybersecurity transformation services based in Dallas, United States

Ranked by team size

Top 24 of 135 cybersecurity transformation 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 transformation 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	GDT	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	501-1,000	1,032 contacts →
	Partial evidence “As an award-winning, global IT solutions provider, we are changing the nature of transformation.” Source: RevenueBase Database · checked Sep 28, 2026
2	Novigo Solutions	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	501-1,000	680 contacts →
	Partial evidence “Novigo Solutions is a technology-driven organization specializing in end-to-end IT services, technology consulting, data analytics, intelligent automation, and cybersecurity.” Source: RevenueBase Database · checked Sep 28, 2026
3	At&t Cybersecurity	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	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, 2026
4	Qatalys	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	201-500	106 contacts →
	Partial evidence “Qatalys is a global AI-powered digital transformation company helping enterprises, startups, and mid-sized businesses innovate, scale, and grow.” Source: RevenueBase Database · checked Sep 28, 2026
5	Kronia Technologies	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	51-200	90 contacts →
	Partial evidence “Kronia® is the next-generation partner for Digital Transformation.” Source: RevenueBase Database · checked Sep 28, 2026
6	Configure, INC	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	201-500	89 contacts →
	Indirect evidence “At Configure, we don’t just connect networks, we connect people, ideas, and possibilities.” Source: RevenueBase Database · checked Sep 28, 2026
7	Active Cyber	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	51-200	82 contacts →
	Indirect evidence “Active Cyber is a cloud consultancy dedicated to Identity Driven Security.” Source: RevenueBase Database · checked Sep 28, 2026
8	Zyston LLC	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	51-200	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, 2026
9	Apollo Information Systems	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	51-200	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, 2026
10	Oaktruss Group	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	51-200	52 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
11	Voluble Systems LLC	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	51-200	24 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
12	Reacredence IT Solutions INC	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	11-50	18 contacts →
	Indirect evidence “ReaCredence IT Solutions consulting services refer to the professional services provided by IT consulting firms to businesses and organizations across various industries.” Source: RevenueBase Database · checked Sep 28, 2026
13	Upstart Cyber	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	11-50	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, 2026
14	Effulgent INC	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “Effulgent Inc – Illuminating Innovation At Effulgent Inc, we provide forward-thinking solutions that empower businesses to thrive in a digital-first world.” Source: RevenueBase Database · checked Sep 28, 2026
15	ITECS	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	11-50	13 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
16	Feuji INC	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	201-500	12 contacts →
	Partial evidence “Headquartered in Dallas, Texas, with operations in Costa Rica and India, we are a global technology services company that delivers Digital Transformation, Cloud, Data and…” Source: RevenueBase Database · checked Sep 28, 2026
17	Willow Bend Systems	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	11-50	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 28, 2026
18	Progressive IT Solutions	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	1-10	10 contacts →
	Indirect evidence “We are like an “easy button” for your IT Department!” Source: RevenueBase Database · checked Sep 28, 2026
19	Technoxi	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence “Technoxi isn't your average IT company, and we never wanted to be.” Source: RevenueBase Database · checked Sep 28, 2026
20	Dallas IT Company Velocity IT	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “Welcome to Velocity IT, your premier Dallas IT Company dedicated to delivering cutting-edge solutions and unparalleled IT services.” Source: RevenueBase Database · checked Sep 28, 2026
21	Phoenix IT Advisors LLC	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	11-50	7 contacts →
	Indirect evidence “Did you know that the IT Industry is completely unregulated?” Source: RevenueBase Database · checked Sep 28, 2026
22	Paudhatek INC	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	11-50	6 contacts →
	Indirect evidence “Embrace the future with confidence.” Source: RevenueBase Database · checked Sep 28, 2026
23	Black Belt Secure	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	1-10	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, 2026
24	Gtsaas	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	51-200	6 contacts →
	Indirect evidence “GTSaaS stands for Global Technology Sales-as-a-Service.” Source: RevenueBase Database · checked Sep 28, 2026

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 transformation services. 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 transformation services.
Partial evidence: Its own public description names part of cybersecurity transformation services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity transformation services. 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 24 of 135 cybersecurity transformation services based in Dallas, United States

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

As of Sep 28, 2026

35.1%Verified-email coverage

22.8Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 135 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 transformation 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 transformation 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 transformation 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 transformation 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, 1,081 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 transformation 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 transformation 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 transformation services are there based in Dallas, United States?

RevenueBase identified 135 cybersecurity transformation 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 transformation services?

New York leads the United States with 204 headquartered companies, followed by Houston (146) and Washington (139). Dallas has 135.

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 1,081 verified decision-maker contacts tracked across these 135 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.