Company lists · Data refreshed September 2026

Top 13 Cybersecurity consultancies based in Falls Church, United States

Name: Cybersecurity consultancies based in Falls Church, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 26 companies tracked

RevenueBase identified 26 company matches for cybersecurity consultancies associated with Falls Church, United States as of September 2026 and tracks 622 professional contacts across them, including 186 with verified work emails. Across the United States, New York is the largest hub for this category (639 companies); Falls Church has 26.

This list covers company matches for cybersecurity consultancies associated with Falls Church, 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 24, 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 24, 2026 How this list was built

26Companies

622Contacts tracked

186Verified emails

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The 13 largest cybersecurity consultancies based in Falls Church, United States

Ranked by team size

Top 13 of 26 company matches for cybersecurity consultancies based in Falls Church, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 24, 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	Markon	Exact match	Falls Church, VA, United StatesHQ recorded Sep 24, 2026	501-1,000	269 contacts →
	Exact match “Markon is the leader across full-spectrum cyber and technology-enabled solutions for the most critical national security priorities.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
2	A3t Agil3 Technology Solutions	Exact match	Falls Church, VA, United StatesHQ recorded Sep 24, 2026	51-200	70 contacts →
	Exact match “Agil3Tech founding principles bring over 35 years of experience in federal government service, contract administration, Command, Control, Communications, Computers, and…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
3	XOR Security, An Agile Defense Company	Exact match	Falls Church, VA, United StatesHQ recorded Sep 24, 2026	51-200	46 contacts →
	Exact match “XOR Security, An Agile Defense Company, is a cyber operations and engineering firm specializing in helping federal and commercial organizations understand the complexity of cyber…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
4	Network Security Systems Plus, INC	Exact match	Falls Church, VA, United StatesHQ recorded Sep 24, 2026	51-200	44 contacts →
	Exact match “Network Security Systems Plus, Inc.(NSSPlus) is a growing Veteran owned Cyber Security Company that has been in business for over 15 years.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
5	Sienna Systems Corporation	Exact match	Falls Church, VA, United StatesHQ recorded Sep 24, 2026	51-200	41 contacts →
	Exact match “Sienna Systems is a SBA 8(a), and CVE-certified Service Disabled Veteran Owned Small Business (SDVOSB) providing technical and management consulting services to government and…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
6	Hypershift Tech	Exact match	Falls Church, VA, United StatesHQ recorded Sep 24, 2026	51-200	20 contacts →
	Exact match “We specialize in helping businesses of all sizes accelerate their digital transformation journey.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
7	Dmvtek	Exact match	Falls Church, VA, United StatesHQ recorded Sep 24, 2026	1-10	16 contacts →
	Exact match “DMVTEK is a dynamic and innovative IT consulting firm based in Falls Church, Virginia, dedicated to delivering high-quality, tailored technology solutions that empower businesses…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
8	STS Government	Exact match	Falls Church, VA, United StatesHQ recorded Sep 24, 2026	11-50	8 contacts →
	Exact match “STS Government is a small business made up of a team of professionals with decades of experience.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
9	Invario Network Engineers	Exact match	Falls Church, VA, United StatesHQ recorded Sep 24, 2026	11-50	7 contacts →
	Exact match “Elevate your business with Managed IT Services that deliver continuity and confidence!” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
10	Globalkynect Solutions, LLC	Exact match	Falls Church, VA, United StatesHQ recorded Sep 24, 2026	1-10	5 contacts →
	Exact match “GlobalKynect Solutions, LLC (GlobalKynect) is a qualified Service-Disabled Veteran-Owned Small Business (SDVOSB) with proven talent and demonstrated information management…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
11	Sandhurst-Aec, LLC	Exact match	Falls Church, VA, United StatesHQ recorded Sep 24, 2026	1-10	4 contacts →
	Exact match “SandHurst-AEC is an architecture and engineering company that provides cybersecurity services for electronic safety and security of Industrial Control Systems.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
12	Meridian535 Strategies	Exact match	Falls Church, VA, United StatesHQ recorded Sep 24, 2026	1-10	2 contacts →
	Exact match “Meridian535 Strategies specializes providing exceptional client service to national security-oriented organizations operating in the defense, intelligence, and homeland security…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
13	Core Interface Corporation	Exact match	Falls Church, VA, United StatesHQ recorded Sep 24, 2026	11-50	1 contacts →
	Exact match “Core Interface Corporation is a information technology company based in the Washington, DC metropolitan area serving the Federal Government.” Recorded in the RevenueBase company graph · Sep 24, 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 consultancies”. 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 13 of 26 cybersecurity consultancies based in Falls Church, United States

See the full list, filter by size, metro and specialty, and access 186 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity consultancies based in Falls Church, United States at a glance

As of Sep 24, 2026

29.9%Verified-email coverage

23.9Average contacts per company

11-50Median size (employees)

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

Email recency for this list is measured across the whole United States list rather than for Falls Church, so it is reported there. Company counts and contact totals on this page are exact for Falls Church, over 26 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 Falls Church, United States whose business descriptions match “cybersecurity consultancies” 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 186 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 24, 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 consultancies 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 consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity consultancies are there based in Falls Church, United States?

RevenueBase identified 26 company matches for cybersecurity consultancies associated with Falls Church, 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?

Markon 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 consultancies?

New York leads the United States with 639 company records, followed by Washington (366) and Houston (303). Falls Church has 26.

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 186 professional contacts with verified work emails tracked across these 26 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 24, 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.