Company lists · Data refreshed September 2026

Top 25 Cybersecurity consultancies based in Dallas, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 258 companies tracked

RevenueBase identified 258 company matches for cybersecurity consultancies associated with Dallas, United States as of September 2026 and tracks 3,691 professional contacts across them, including 1,379 with verified work emails. Across the United States, New York is the largest hub for this category (639 companies); Dallas has 258.

This list covers company matches for cybersecurity consultancies associated with Dallas, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 24, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 24, 2026 How this list was built

258Companies

3,691Contacts tracked

1,379Verified emails

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The 25 largest cybersecurity consultancies based in Dallas, United States

Ranked by team size

Top 25 of 258 company matches for cybersecurity consultancies based in Dallas, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 24, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	GDT	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	501-1,000	1,032 contacts →
	Exact match “As an award-winning, global IT solutions provider, we are changing the nature of transformation.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
2	Levelblue	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	1,001-5,000	594 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
3	At&t Cybersecurity	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	1,001-5,000	156 contacts →
	Exact match “AT & T Cybersecurity’s Edge-to-Edge technologies provide phenomenal threat intelligence, collaborative defense, security without the seams, and solutions that fit your business.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
4	Sq1 Security	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	201-500	154 contacts →
	Exact match “SQ1 Security is a global cybersecurity leader offering end-to-end cybersecurity and compliance solution.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
5	Configure, INC	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	201-500	89 contacts →
	Exact match “At Configure, we don’t just connect networks, we connect people, ideas, and possibilities.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
6	Active Cyber	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	51-200	82 contacts →
	Exact match “Active Cyber is a cloud consultancy dedicated to Identity Driven Security.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
7	Zyston LLC	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	51-200	70 contacts →
	Exact match “Zyston is a next‑generation cybersecurity partner dedicated to helping organizations stay one step ahead of threats.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
8	Apollo Information Systems	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	51-200	64 contacts →
	Exact match “Apollo Information Systems delivers intelligence-led cybersecurity solutions for government agencies, educational institutions, and enterprises.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
9	Oaktruss Group	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	51-200	52 contacts →
	Exact match “OakTruss Group is an advisory firm focused on helping organizations operate securely at the intersection of cybersecurity, AI, and data.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
10	Columbia Advisory Group	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	51-200	49 contacts →
	Exact match “Columbia Advisory Group is a Dallas, Texas based Information Technology consulting firm focused on providing Information Technology due diligence, strategic assessment and…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
11	Cyber Chasse INC	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	11-50	46 contacts →
	Exact match “Cyber Chasse is an It consulting and staffing company, specializing in Splunk, a cybersecurity software.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
12	Romack INC	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	201-500	27 contacts →
	Exact match “Romack is pleased to offer a unique service for companies that were forced into furloughing their employees during this difficult times.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
13	Vizipp	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	11-50	26 contacts →
	Exact match “Founded in 2017, Vizipp Inc.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
14	Solcyber	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	51-200	25 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
15	Voluble Systems LLC	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	51-200	24 contacts →
	Exact match “Voluble Systems LLC.(VOLUBLE) professional services company that provides strategy, custom information technology, information security, consulting, digital, technology…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
16	Modo Networks, LLC	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	11-50	23 contacts →
	Exact match “As a Managed Service Provider (MSP), we specialize in providing top-notch IT support and solutions to small and medium-sized businesses.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
17	Beryllium Infosec	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	11-50	19 contacts →
	Exact match “Beryllium is a cybersecurity and compliance company focused on helping U.S.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
18	Clover IT	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	11-50	18 contacts →
	Exact match “Founded in 2011, Clover IT is known as an innovative company, focused on Information Security and Compliance market.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
19	Reacredence IT Solutions INC	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	11-50	18 contacts →
	Exact match “ReaCredence IT Solutions consulting services refer to the professional services provided by IT consulting firms to businesses and organizations across various industries.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
20	White Rock Cybersecurity	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	11-50	16 contacts →
	Exact match “Established in 2013, White Rock Cybersecurity is a Value Added Reseller that focuses on delivering innovative, scalable, and manageable solutions in information technology.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
21	Cyturus Technologies	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	11-50	16 contacts →
	Exact match “Most GRC platforms don’t operate as a system.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
22	Upstart Cyber	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	11-50	15 contacts →
	Exact match “At Upstart Cyber, we bring the expertise gained from government and large-scale businesses to organizations of all sizes.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
23	ITECS	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	11-50	13 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
24	Willow Bend Systems	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	11-50	12 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
25	Nearshore Cyber	Exact match	Dallas, TX, United StatesHQ recorded Sep 24, 2026	11-50	12 contacts →
	Exact match “Global Cybersecurity Recruiting \| GRC \| Community” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “cybersecurity consultancies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 258 cybersecurity consultancies based in Dallas, United States

See the full list, filter by size, metro and specialty, and access 1,379 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity consultancies based in Dallas, United States at a glance

As of Sep 24, 2026

37.4%Verified-email coverage

14.3Average contacts per company

1-10Median size (employees)

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

132

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 258 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Dallas, United States whose business descriptions match “cybersecurity consultancies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,379 professional contacts with verified work emails across the full matched dataset. 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 24, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Cybersecurity consultancies by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “cybersecurity consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity consultancies are there based in Dallas, United States?

RevenueBase identified 258 company matches for cybersecurity consultancies associated with Dallas, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

GDT tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most cybersecurity consultancies?

New York leads the United States with 639 company records, followed by Washington (366) and Houston (303). Dallas has 258.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,379 professional contacts with verified work emails tracked across these 258 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 24, 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 SmartSearch, 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.