Company lists · Data refreshed September 2026
Top 21 Security consulting firms based in Mclean, United States
RevenueBase identified 33 security consulting firms headquartered in Mclean, United States as of September 2026 and tracks 2,104 professional contacts across them, including 710 with verified work emails. New York is the largest hub.
This list covers security consulting firms headquartered in Mclean, 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 21 largest security consulting firms based in Mclean, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 523 | ||||
“UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program, finding what's vulnerable, stopping…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 447 | ||||
“At Xcelerate, safeguarding the nation isn’t just a mission-it’s our obsession.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 254 | ||||
“About VMD VMD, now a part of Xcelerate Solutions, is a leading defense and national security company, delivering integrated solutions in enterprise security, strategic consulting…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 251 | ||||
“Global Guardian's team of experienced subject matter experts build tailored security programs to mitigate risk and provide positive outcomes to a range of threats at home and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 153 | ||||
“Integral partners with federal defense, intelligence, and civilian leaders to tackle their most important challenges and deliver transformative solutions.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | Valiant SolutionsPartial evidence | 152 | |||
“Valiant Solutions, LLC stands out as a premier provider of Cybersecurity and IT services aiding the Federal Government in staying ahead of complex information security challenges.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 103 | ||||
“Communications Resource, Inc.(CRI) is a minority and Woman-Owned Small Business with over 30 years of focused security performance supporting over 40 government and commercial…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 32 | ||||
“Some missions can't fail.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | SquadraIndirect evidence | 31 | |||
“Squadra Solutions delivers expert cybersecurity architecture, engineering, and advisory services to federal agencies, enterprises, and higher education institutions.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | RKA Worldwide Group, LLCPartial evidence | 22 | |||
“RKA is a boutique, privately held, veteran and minority-owned professional services and management consulting firm, trusted in the most complex and high-stakes matters.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 21 | ||||
“Digital Global Connectors, LLC, is a Woman Owned Small Business that provides Cyber Security and Information Assurance services to the Federal and Private sectors, with core…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 13 | ||||
“bladestack.io brings cloud expertise, technology and innovative approaches which empower your organization to capitalize on the promise of digital transformation.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 11 | ||||
“Cognitio is an engineering firm established and managed by a team of former senior technology executives from the U.S.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | Techicon, INCPartial evidence | 10 | |||
“Experts in Cyber Security focusing on assessment, compliance, FedRAMP advisory, and IT and OT penetration testing.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 5 | ||||
“Most organizations believe they're protected.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | Oshirak Group InternationalPartial evidence | 4 | |||
“Established in 2012, Oshirak Group International (OGI) provides integrated maritime security training, assessment, investigation and cyber services.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | SecureitsmIndirect evidence | 3 | |||
“SecureITSM – Defense-Grade CMMC Compliance, Cybersecurity & Managed Service Provider (MSP) for Federal Contractors SecureITSM is a veteran-led cybersecurity partner helping DoD…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 | ||||
“Formmi Inc is comprised of a team of highly experienced professionals who have implemented and managed processes, programs and operations in the areas of: • Information Security…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | Tyger Solutions CorporationStrong evidence | 2 | |||
“Tyger Solutions Corporation (TSC) is an Information Technology (IT) consulting firm specializing in Information Security, custom technology designs, systems integration, and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | The Vigilis GroupPartial evidence | 1 | |||
“At Vigilis Group, we are committed to providing elite global risk management and security solutions.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | Maximum Justice CybersecurityIndirect evidence | 1 | |||
“Maximum Justice Cybersecurity helps organizations make AI, cybersecurity, cloud, and enterprise-technology decisions they can defend.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 21 of 33 security consulting firms based in Mclean, United States
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Security consulting firms based in Mclean, 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 Mclean, over 33 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 Mclean, 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 Mclean 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, 710 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 Mclean, United States?
RevenueBase identified 33 security consulting firms headquartered in Mclean, 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?
Ultraviolet Cyber, headquartered in Mclean, 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 710 verified decision-maker contacts tracked across these 33 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.
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