Company lists · Data refreshed September 2026

Top 25 Secure software development companies based in Dallas, United States

Name: Secure software development companies based in Dallas, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 84 companies tracked

RevenueBase identified 84 secure software development companies headquartered in Dallas, United States as of September 2026 and tracks 615 professional contacts across them, including 169 with verified work emails. New York is the largest hub.

This list covers secure software development 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, how directly it supports the match, and when it was last checked. Data refreshed September 6, 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 HQ checked on every row Match evidence on every row Refreshed Sep 6, 2026 86% judged on-target in blind review

84Companies

615Contacts tracked

169Verified emails

Explore all 84 companies → Free signup · no credit card · 500 free credits

The 25 largest secure software development companies based in Dallas, United States

Ranked by team size

Top 25 of 84 secure software development companies based in Dallas, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. Evidence rates how directly each company's own description names secure software development companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Apollo Information SystemsIndirect evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	51-200	64
	“Apollo Information Systems delivers intelligence-led cybersecurity solutions for government agencies, educational institutions, and enterprises.” Source: company website · checked Sep 6, 2026
2	Oaktruss GroupPartial evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	51-200	52
	“OakTruss Group is an advisory firm focused on helping organizations operate securely at the intersection of cybersecurity, AI, and data.” Source: company website · checked Sep 6, 2026
3	VizippIndirect evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	11-50	26
	“Founded in 2017, Vizipp Inc.” Source: company website · checked Sep 6, 2026
4	Voluble Systems LLCPartial evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	51-200	24
	“Voluble Systems LLC.(VOLUBLE) professional services company that provides strategy, custom information technology, information security, consulting, digital, technology…” Source: company website · checked Sep 6, 2026
5	Clover ITPartial evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	11-50	18
	“Founded in 2011, Clover IT is known as an innovative company, focused on Information Security and Compliance market.” Source: company website · checked Sep 6, 2026
6	Upstart CyberIndirect evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	11-50	15
	“At Upstart Cyber, we bring the expertise gained from government and large-scale businesses to organizations of all sizes.” Source: company website · checked Sep 6, 2026
7	Willow Bend SystemsIndirect evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	11-50	12
	“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: company website · checked Sep 6, 2026
8	Wrld Tech COIndirect evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	11-50	9
	“We are in the business of helping organizations aim higher and achieve more through technological innovations.” Source: company website · checked Sep 6, 2026
9	Dallas IT Company Velocity ITIndirect evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	11-50	8
	“Welcome to Velocity IT, your premier Dallas IT Company dedicated to delivering cutting-edge solutions and unparalleled IT services.” Source: company website · checked Sep 6, 2026
10	Phoenix IT Advisors LLCIndirect evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	11-50	7
	“Did you know that the IT Industry is completely unregulated?” Source: company website · checked Sep 6, 2026
11	Black Belt SecurePartial evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	1-10	6
	“We are security engineers with over 20 years of experience working in the DFW Metroplex.” Source: company website · checked Sep 6, 2026
12	Ingenious ResultsPartial evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	51-200	6
	“A software, web, mobile, cloud, and software company that provides the highest quality services to our clients across North America.” Source: company website · checked Sep 6, 2026
13	Technology & AnalyticsPartial evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	1-10	6
	“Technology & Analytics' mission is to offer the best support, knowledge, and technical ability to give your company uninterrupted service, unmatched by any other software…” Source: company website · checked Sep 6, 2026
14	ThreetechPartial evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	51-200	5
	“Elite Teams \| Exceptional Results At ThreeTech, we deliver high-performing teams of experienced software designers, developers, and cybersecurity experts who collaborate with your…” Source: company website · checked Sep 6, 2026
15	Birch Cline CybersecurityIndirect evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	11-50	4
	“Birch Cline is a Dallas, Texas-based cybersecurity firm that specializes in protecting highly regulated environments and government agencies.” Source: company website · checked Sep 6, 2026
16	CorexponentIndirect evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	201-500	4
	“At CoreXponent, innovation and expertise meet to offer unparalleled services to our clients.” Source: company website · checked Sep 6, 2026
17	Bolt ResourcesIndirect evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	1-10	3
	“At Bolt Resources, we believe cybersecurity leadership is the cornerstone of modern business resilience.” Source: company website · checked Sep 6, 2026
18	Black ARC SecurityPartial evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	1-10	3
	“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: company website · checked Sep 6, 2026
19	Bastet PartnersPartial evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	1-10	3
	“Bastet Partners is a small minority owned business specializing in developing and maintaining security solutions.” Source: company website · checked Sep 6, 2026
20	JemuraiPartial evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	1-10	3
	“Jemurai is a small security company built around developers that specialize in security.” Source: company website · checked Sep 6, 2026
21	QuatronicsPartial evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	1-10	2
	“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: company website · checked Sep 6, 2026
22	DL CyberPartial evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	1-10	2
	“Dallas-based firm delivering strategic cybersecurity solutions that close critical security gaps and enable business growth.” Source: company website · checked Sep 6, 2026
23	Slva CybersecurityIndirect evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	1-10	2
	“SLVA’s expertise has been hard won in the trenches of banks and financial services, healthcare, telecommunications, retail, utilities, and government organizations.” Source: company website · checked Sep 6, 2026
24	Netex ConsultingIndirect evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	1-10	2
	“We specialize in delivering next-generation cybersecurity solutions, cloud networking services, virtualization expertise, and comprehensive system administration.” Source: company website · checked Sep 6, 2026
25	GT Media, LLCIndirect evidence	Dallas, TX, United StatesHQ checked Sep 6, 2026	1-10	1
	“We are a computer engineering company based within the Dallas Metroplex.” Source: company website · checked Sep 6, 2026

Showing 25 of 84 secure software development companies based in Dallas, United States

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Secure software development companies based in Dallas, United States at a glance

As of Sep 6, 2026

11-50Median size (employees)

New YorkLargest hub · 183 HQs

Contacts with mobile numbers

Sep 6, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Dallas, over 84 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 secure software development companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “secure software development companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among secure software development 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 an evidence 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, 169 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 6, 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.

Secure software development companies by metro in the United States

Frequently asked

How many secure software development companies are there based in Dallas, United States?

RevenueBase identified 84 secure software development 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 secure software development companies?

New York leads with 183 headquartered companies, followed by Houston (112) and Atlanta (109).

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 169 verified decision-maker contacts tracked across these 84 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 6, 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.