Company lists · Data refreshed October 2026

Top 19 Cyberdefense technology providers based in Mclean, United States

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

Compiled by the RevenueBase Data Team Data refreshed Oct 11, 2026 31 companies tracked

RevenueBase identified 31 company matches for cyberdefense technology providers associated with Mclean, United States as of October 2026 and tracks 2,231 professional contacts across them, including 842 with verified work emails. Across the United States, New York is the largest hub for this category (156 companies); Mclean has 31.

This list covers company matches for cyberdefense technology 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 October 11, 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 Oct 11, 2026 How this list was built

31Companies

2,231Contacts tracked

842Verified emails

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The 19 largest cyberdefense technology providers based in Mclean, United States

Ranked by team size

Top 19 of 31 company matches for cyberdefense technology providers based in Mclean, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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 Oct 11, 2026	501-1,000	601 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 · Oct 11, 2026 · View company records in RevenueBase
2	By Light Professional IT Services	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 2026	1,001-5,000	564 contacts →
	Exact match “By Light Professional IT Services LLC, headquartered in McLean, VA, is a leading provider of advanced technology solutions delivering cyber and warfighter training platforms for…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
3	VMD Corp	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 2026	501-1,000	247 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
4	Merlin Cyber	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 2026	51-200	175 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 · Oct 11, 2026 · View company records in RevenueBase
5	Valiant Solutions	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 2026	201-500	160 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 · Oct 11, 2026 · View company records in RevenueBase
6	SWISH	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 2026	11-50	82 contacts →
	Exact match “We’re the cybersecurity and data performance architects.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
7	Moxfive	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 2026	51-200	61 contacts →
	Exact match “MOXFIVE is cybersecurity company helping organizations respond to incidents and minimize the risk of future attacks.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
8	Breakpoint Labs	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 2026	51-200	60 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 · Oct 11, 2026 · View company records in RevenueBase
9	Andesite	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 2026	11-50	48 contacts →
	Exact match “After decades defending the nation's most sensitive networks, we founded Andesite with a clear mission: to build security products that transform how humans and AI collaborate to…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10	Runsafe Security INC	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 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 · Oct 11, 2026 · View company records in RevenueBase
11	Squadra	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 2026	11-50	30 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 · Oct 11, 2026 · View company records in RevenueBase
12	Axxum Technologies LLC	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 2026	11-50	12 contacts →
	Exact match “Axxum Technologies is a premier provider of Network Communications and Information Technology Security Solutions.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13	Onclave Networks, INC	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 2026	11-50	10 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14	Cacg, LLC	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 2026	11-50	10 contacts →
	Exact match “CACG, LLC is a mission-focused technology partner delivering secure IT solutions for the U.S.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15	The Shattuck Group	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 2026	11-50	6 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 · Oct 11, 2026 · View company records in RevenueBase
16	Sengex	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 2026	11-50	4 contacts →
	Exact match “Sengex is a leader in large scale cyber and physical threat detection and mitigation.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17	H3o Labs, LLC	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 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 · Oct 11, 2026 · View company records in RevenueBase
18	Clear Entropy	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 2026	11-50	1 contacts →
	Exact match “We're an innovative technology firm in the cybersecurity and digital transformation space, with disciplines in IT Solutions, Mission Support and Consulting for both federal…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19	Maximum Justice Cybersecurity	Exact match	Mclean, VA, United StatesHQ recorded Oct 11, 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 · Oct 11, 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 “cyberdefense technology 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 19 of 31 cyberdefense technology providers based in Mclean, United States

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Cyberdefense technology providers based in Mclean, United States at a glance

As of Oct 11, 2026

37.7%Verified-email coverage

72.0Average contacts per company

11-50Median size (employees)

Oct 11, 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 31 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 “cyberdefense technology 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 842 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 October 11, 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.

Cyberdefense technology 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 “cyberdefense technology providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cyberdefense technology providers are there based in Mclean, United States?

RevenueBase identified 31 company matches for cyberdefense technology providers associated with Mclean, United States as of October 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 cyberdefense technology providers?

New York leads the United States with 156 company records, followed by San Francisco (91) and Austin (89). Mclean has 31.

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 842 professional contacts with verified work emails tracked across these 31 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 October 11, 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.