Company lists · Data refreshed September 2026

Top 17 Security architecture companies based in Dallas, United States

RevenueBase identified 37 security architecture companies headquartered in Dallas, United States as of September 2026 and tracks 271 professional contacts across them, including 110 with verified work emails. New York is the largest hub.

This list covers security architecture companies 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 14, 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 14, 2026 86% judged on-target in blind review
37Companies
271Contacts tracked
110Verified emails
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The 17 largest security architecture companies based in Dallas, United States

Ranked by team size
Top 17 of 37 security architecture companies based in Dallas, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to security architecture companies: 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 14, 202651-20064 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
2Partial evidenceDallas, TX, United StatesHQ checked Sep 14, 202651-20019 contacts →

Partial evidence

“CorePlus Technologies: Leading the Future of Security Across Industries At CorePlus Technologies, security is at the heart of everything we do.”

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceDallas, TX, United StatesHQ checked Sep 14, 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 14, 2026
4Partial evidenceDallas, TX, United StatesHQ checked Sep 14, 202611-5013 contacts →

Partial evidence

“Provides unique security solutions, Paradin specializes in a wide range of security services.”

Source: RevenueBase Database · checked Sep 14, 2026
5Partial evidenceDallas, GA, United StatesHQ checked Sep 14, 202611-5010 contacts →

Partial evidence

“From fire alarms to comprehensive security solutions, K9 All Systems, Inc, is a one-stop-shop for all your security needs.”

Source: RevenueBase Database · checked Sep 14, 2026
6Partial evidenceDallas, TX, United StatesHQ checked Sep 14, 20261-106 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
7Indirect evidenceDallas, TX, United StatesHQ checked Sep 14, 202651-2006 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceDallas, TX, United StatesHQ checked Sep 14, 202611-505 contacts →

Indirect evidence

“Recon Technical Solutions, Inc.”

Source: RevenueBase Database · checked Sep 14, 2026
9Partial evidenceDallas, TX, United StatesHQ checked Sep 14, 20261-104 contacts →

Partial 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 14, 2026
10Indirect evidenceDallas, TX, United StatesHQ checked Sep 14, 202611-504 contacts →

Indirect 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 14, 2026
11Partial evidenceDallas, TX, United StatesHQ checked Sep 14, 20261-103 contacts →

Partial evidence

“TruControls is a licensed security company that provides the installation of access control, surveillance systems, CCTV, and alarm systems for businesses located in Texas and…”

Source: RevenueBase Database · checked Sep 14, 2026
12Partial evidenceDallas, TX, United StatesHQ checked Sep 14, 20261-103 contacts →

Partial evidence

“Jemurai is a small security company built around developers that specialize in security.”

Source: RevenueBase Database · checked Sep 14, 2026
13Strong evidenceDallas, TX, United StatesHQ checked Sep 14, 20261-103 contacts →

Strong evidence

“With decades of combined experience in system and application architecture, Black Arc Security's team of veteran certified security experts can quickly evaluate and mitigate risks…”

Source: RevenueBase Database · checked Sep 14, 2026
14Indirect evidenceDallas, TX, United StatesHQ checked Sep 14, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
15Indirect evidenceDallas, TX, United StatesHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

“We specialize in delivering next-generation cybersecurity solutions, cloud networking services, virtualization expertise, and comprehensive system administration.”

Source: RevenueBase Database · checked Sep 14, 2026
16Partial evidenceDallas, TX, United StatesHQ checked Sep 14, 20261-102 contacts →

Partial evidence

“Tech Solutions Group is a security integration organization in Northern Texas, providing businesses with smart and innovative solutions to keep their businesses safe and secure.”

Source: RevenueBase Database · checked Sep 14, 2026
17Partial evidenceDallas, TX, United StatesHQ checked Sep 14, 20261-101 contacts →

Partial evidence

“We understand that security is paramount for businesses and organizations of all sizes.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 17 of 37 security architecture companies based in Dallas, United States

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Security architecture companies based in Dallas, United States at a glance

As of Sep 14, 2026
40.6%Verified-email coverage
7.3Average contacts per company
1-10Median size (employees)
159.5%Largest-city concentration · New York
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
22
11-50
10
51-200
5

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 37 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 security architecture companies, 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 “security architecture companies”. 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 security architecture companies), 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 security architecture companies, 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, 110 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 14, 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 security architecture companies, 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 security architecture companies are there based in Dallas, United States?

RevenueBase identified 37 security architecture companies 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?

Apollo Information Systems, headquartered in Dallas, tops this list with the largest team on record.

Which city has the most security architecture companies?

New York leads with 59 headquartered companies, followed by Houston (47) and Miami (42).

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 110 verified decision-maker contacts tracked across these 37 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 14, 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.