Company lists · Data refreshed September 2026
Top 25 Security consulting firms based in Dallas, United States
RevenueBase identified 90 security consulting firms headquartered in Dallas, United States as of September 2026 and tracks 1,124 professional contacts across them, including 531 with verified work emails. New York is the largest hub.
This list covers security consulting firms 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.
The 25 largest security consulting firms based in Dallas, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 594 | ||||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 64 | ||||
“Apollo Information Systems delivers intelligence-led cybersecurity solutions for government agencies, educational institutions, and enterprises.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | Paradin Security SolutionsPartial evidence | 13 | |||
“Provides unique security solutions, Paradin specializes in a wide range of security services.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 10 | ||||
“We provide professional armed and unarmed uniformed and plain clothed Executive Protection Agents, armored executive driver services, Static Estate Security, specialized military…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 9 | ||||
“Active Crisis Consulting is in the business of supporting government agencies, military, private contractors and corporate clients with security solutions, executive protection…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 9 | ||||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | Phoenix IT Advisors LLCIndirect evidence | 7 | |||
“Did you know that the IT Industry is completely unregulated?” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 6 | ||||
“We are security engineers with over 20 years of experience working in the DFW Metroplex.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | Logos SystemsPartial evidence | 5 | |||
“At Logos Systems we are a security and vCISO services provider.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | Recon Technical SolutionsIndirect evidence | 5 | |||
“Recon Technical Solutions, Inc.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | Tac7 Security SolutionsPartial evidence | 5 | |||
“TAC7 delivers expert security solutions designed to protect what matters most.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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, 2026Thanks. The Data Team will review it. | |||||
| 16 | TekzysPartial evidence | 4 | |||
“Since 2012, TEKZYS has protected business infrastructure through security-first governance and disciplined technology oversight.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 | ||||
“At Bolt Resources, we believe cybersecurity leadership is the cornerstone of modern business resilience.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 | ||||
“Bastet Partners is a small minority owned business specializing in developing and maintaining security solutions.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | QuatronicsPartial evidence | 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, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 | ||||
“Dallas-based firm delivering strategic cybersecurity solutions that close critical security gaps and enable business growth.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | Cyber Defense LabsPartial evidence | 2 | |||
“Cyber Defense Labs is a full life-cycle information security service provider helping companies manage, detect and respond to today’s cyber risks.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | OodatopiaIndirect evidence | 2 | |||
“A team of top tier talent and leadership formerly from industry or government that provides strategy, management, training and engineering services for the commercial and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 | ||||
“Qualified in a broad spectrum of disciplines, including network infrastructure, cloud strategies, cyber security, mobility, and project management; Badger’s team supports a wide…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 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, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 90 security consulting firms based in Dallas, United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 531 reachable decision-makers.
Free signup · no credit card
Security consulting firms based in Dallas, United States at a glance
As of Sep 6, 2026Companies by employee count
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 90 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 consulting firms, 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 “security consulting firms”. 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 security consulting firms, 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, 531 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.
Security consulting firms by metro in the United States
- Security consulting firms in New York189
- Security consulting firms in Washington139
- Security consulting firms in Houston124
- Security consulting firms in Atlanta118
- Security consulting firms in Austin96
- Security consulting firms in Chicago90
- Security consulting firms in Dallas90
- Security consulting firms in Los Angeles88
- Security consulting firms in Miami88
- Security consulting firms in San Francisco73
- Security consulting firms in Arlington65
- Security consulting firms in Tampa63
- Security consulting firms in Denver56
- Security consulting firms in San Diego55
- Security consulting firms in Alexandria53
- Security consulting firms in Charlotte53
- Security consulting firms in Seattle52
- Security consulting firms in Boston47
- Security consulting firms in Orlando43
- Security consulting firms in San Antonio43
- Security consulting firms in Las Vegas41
- Security consulting firms in Columbia39
- Security consulting firms in Phoenix39
- Security consulting firms in Reston37
- Security consulting firms in Raleigh36
- Security consulting firms in Minneapolis35
- Security consulting firms in Baltimore33
- Security consulting firms in Mclean33
- Security consulting firms in Huntsville29
- Security consulting firms in Columbus28
- Security consulting firms in Herndon28
- Security consulting firms in San Jose28
- Security consulting firms in Pittsburgh27
- Security consulting firms in Ashburn26
- Security consulting firms in Colorado Springs26
- Security consulting firms in Scottsdale26
- Security consulting firms in Philadelphia25
- Security consulting firms in Richmond25
Frequently asked
How many security consulting firms are there based in Dallas, United States?
RevenueBase identified 90 security consulting firms 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?
Levelblue, headquartered in Dallas, tops this list with the largest team on record.
Which city has the most security consulting firms?
New York leads with 189 headquartered companies, followed by Washington (139) and Houston (124).
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 531 verified decision-maker contacts tracked across these 90 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.
Ready to reach these companies? Verified emails and direct dials for all 90 security consulting firms based in Dallas, United States. Start with a free account, no credit card.
Get the full listRelated lists
Security consulting firms by geography
- Security consulting firms based in the United States
- Security consulting firms based in the United Kingdom
- Security consulting firms based in France
- Security consulting firms based in Brazil
- Security consulting firms based in Canada
- Security consulting firms based in Germany
- Security consulting firms based in Australia
- Security consulting firms based in the Netherlands
- Security consulting firms based in Mexico
- Security consulting firms based in Italy
- Security consulting firms based in Spain
- Security consulting firms based in South Africa
Browse the directory
Browse: Companies home · Security consulting firms in United States · All United States lists · All Security consulting firms lists · New lists
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Security consulting firms based in the United States
- Security consulting firms based in the United Kingdom
- Security consulting firms based in France
- Security consulting firms based in Brazil
- Security consulting firms based in Canada
- Security consulting firms based in Germany