Company lists · Data refreshed September 2026

Top 17 Cybersecurity systems providers based in Mclean, United States

Name: Cybersecurity systems providers based in Mclean, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 34 companies tracked

RevenueBase identified 34 company matches for cybersecurity systems providers associated with Mclean, United States as of September 2026 and tracks 1,403 professional contacts across them, including 597 with verified work emails. Across the United States, New York is the largest hub for this category (218 companies); Mclean has 34.

This list covers company matches for cybersecurity systems providers associated with Mclean, 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 28, 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 28, 2026 How this list was built

34Companies

1,403Contacts tracked

597Verified emails

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The 17 largest cybersecurity systems providers based in Mclean, United States

Ranked by team size

Top 17 of 34 company matches for cybersecurity systems providers based in Mclean, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	Ultraviolet Cyber	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	501-1,000	523 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Merlin Cyber	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	51-200	160 contacts →
	Exact match “Merlin is a powerful ecosystem of cybersecurity investment, innovation, technical expertise, and go-to-market acceleration with 25 years of experience working with the U.S.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Valiant Solutions	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	201-500	152 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Network Designs, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	51-200	152 contacts →
	Exact match “NDi is a Verified Service-Disabled Veteran Owned Small Business [SDVOSB] professional services firm, supporting Federal and Commercial customers since 1995.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	CRI	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	51-200	103 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Breakpoint Labs	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	51-200	53 contacts →
	Exact match “BreakPoint Labs, a Valiant Solutions Company, delivers offensive and defensive cybersecurity to the Department of War, federal agencies, and commercial organizations.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Squadra	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	11-50	31 contacts →
	Exact match “Squadra Solutions delivers expert cybersecurity architecture, engineering, and advisory services to federal agencies, enterprises, and higher education institutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Runsafe Security INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	11-50	31 contacts →
	Exact match “RunSafe Security protects embedded software across critical infrastructure, delivering automated vulnerability identification and software hardening from build-time to runtime to…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Digital Global Connectors, LLC DGC	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	11-50	21 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Axxum Technologies LLC	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	11-50	11 contacts →
	Exact match “Axxum Technologies is a premier provider of Network Communications and Information Technology Security Solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Techicon, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	11-50	10 contacts →
	Exact match “Experts in Cyber Security focusing on assessment, compliance, FedRAMP advisory, and IT and OT penetration testing.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	The Shattuck Group	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	11-50	8 contacts →
	Exact match “The Shattuck Group is a cyber security engineering firm that specializes in protecting workloads from insider threats.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Digital Warfare	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	11-50	5 contacts →
	Exact match “Most organizations believe they're protected.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	H3o Labs, LLC	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	11-50	3 contacts →
	Exact match “H3O Labs is headquartered in VA with offices in McLean and Fairfax.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Sengex	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	11-50	3 contacts →
	Exact match “Sengex is a leader in large scale cyber and physical threat detection and mitigation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	W Tchtower	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	11-50	2 contacts →
	Exact match “Founded in 2010 by former Director of US CERT Mischel Kwon, and headquartered in McLean, VA, W@tchTower® LLC is a premier cybersecurity firm leading the transformation of security…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Maximum Justice Cybersecurity	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	1-10	1 contacts →
	Exact match “Maximum Justice Cybersecurity helps organizations make AI, cybersecurity, cloud, and enterprise-technology decisions they can defend.” Recorded in the RevenueBase company graph · Sep 28, 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 systems providers”. 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 17 of 34 cybersecurity systems providers based in Mclean, United States

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Cybersecurity systems providers based in Mclean, United States at a glance

As of Sep 28, 2026

42.6%Verified-email coverage

41.3Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured across the whole United States list rather than for Mclean, so it is reported there. Company counts and contact totals on this page are exact for Mclean, over 34 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 Mclean, United States whose business descriptions match “cybersecurity systems providers” 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 597 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 28, 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 systems providers 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 systems providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity systems providers are there based in Mclean, United States?

RevenueBase identified 34 company matches for cybersecurity systems providers associated with Mclean, 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?

Ultraviolet Cyber 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 systems providers?

New York leads the United States with 218 company records, followed by Houston (125) and Austin (114). Mclean has 34.

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 597 professional contacts with verified work emails tracked across these 34 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 28, 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.