Company lists · Data refreshed September 2026

Top 22 Defense contractor cybersecurity services based in Vienna, United States

Name: Defense contractor cybersecurity services based in Vienna, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 37 companies tracked

RevenueBase identified 37 defense contractor cybersecurity services headquartered in Vienna, United States as of September 2026 and tracks 1,983 professional contacts across them, including 667 with verified work emails. Across the United States, Washington is the largest hub for this category (115 companies); Vienna has 37.

This list covers defense contractor cybersecurity services headquartered in Vienna, 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

37Companies

1,983Contacts tracked

667Verified emails

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The 22 largest defense contractor cybersecurity services based in Vienna, United States

Ranked by team size

Top 22 of 37 defense contractor cybersecurity services based in Vienna, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to defense contractor cybersecurity services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Aretum	Partial evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	501-1,000	258 contacts →
	Partial evidence “Aretum is a leading government contracting company specializing in technology-enabled mission support services for the Department of War, Department of Homeland Security, and…” Source: RevenueBase Database · checked Sep 28, 2026
2	Microhealth LLC	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	201-500	210 contacts →
	Indirect evidence “At MicroHealth LLC, we’re a Veteran-owned small business making a big impact in the federal IT space.” Source: RevenueBase Database · checked Sep 28, 2026
3	Criterion Systems	Partial evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	201-500	198 contacts →
	Partial evidence “Criterion Systems, LLC, a Cherokee Federal Company,(Criterion) provides cybersecurity, cloud automation and management, IT infrastructure operations, and solutions engineering…” Source: RevenueBase Database · checked Sep 28, 2026
4	Constellation West	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	51-200	151 contacts →
	Indirect evidence “Constellation West is where extraordinary works.” Source: RevenueBase Database · checked Sep 28, 2026
5	Favor Techconsulting, LLC FTC	Partial evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	501-1,000	144 contacts →
	Partial evidence “FTC is a leading IT services and solutions provider that delivers Next-Gen technical solutions for our federal government customers across the Civil, Defense, and Intelligence…” Source: RevenueBase Database · checked Sep 28, 2026
6	Ardent	Partial evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	51-200	136 contacts →
	Partial evidence “For nearly 20 years, Ardent has served this country by delivering award-winning security and defense technology solutions.” Source: RevenueBase Database · checked Sep 28, 2026
7	SD Solutions, LLC	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	51-200	83 contacts →
	Indirect evidence “Since 2011, SD Solutions, LLC has been supporting over 15 US Federal Government agencies in the areas of Cyber, Digital, Data, Strategy, and Professional Services.” Source: RevenueBase Database · checked Sep 28, 2026
8	Government Tactical Solutions, LLC	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	51-200	62 contacts →
	Indirect evidence “Government Tactical Solutions (GovTact) provides mission-critical solutions in support of national security.” Source: RevenueBase Database · checked Sep 28, 2026
9	Triumph Enterprises, INC	Partial evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	51-200	57 contacts →
	Partial evidence “Founded in 2005, Triumph has risen to meet the Federal government’s growing need for mission-critical Cybersecurity; Business Intelligence, Analytics, and Data Visualization; and…” Source: RevenueBase Database · checked Sep 28, 2026
10	Gcyber	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	51-200	52 contacts →
	Indirect evidence “GCyber delivers secure, efficient, and scalable IT solutions that empower mission success.” Source: RevenueBase Database · checked Sep 28, 2026
11	Applylogic Consulting Group, LLC	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	51-200	35 contacts →
	Indirect evidence “ApplyLogic is a certified Service-Disabled Veteran Owned Small Business (SDVOSB) and leading provider of integrated technology solutions to customers across the public and private…” Source: RevenueBase Database · checked Sep 28, 2026
12	Catalyst Operations & Analytics	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	51-200	32 contacts →
	Indirect evidence “Catalyst Operations & Analytics, LLC (COA) provides tailored support to Government and commercial clients through operational and cyber support services, artificial intelligence…” Source: RevenueBase Database · checked Sep 28, 2026
13	Dayblink Consulting	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	51-200	29 contacts →
	Indirect evidence “DayBlink Consulting provides cyber security, applied automation, cloud enablement, and strategic execution solutions to Fortune 500 companies, and pro bono consulting to…” Source: RevenueBase Database · checked Sep 28, 2026
14	Accessagility	Partial evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	11-50	25 contacts →
	Partial evidence “AccessAgility is based out of the Washington, DC metro area and provides IT and Cybersecurity solutions.” Source: RevenueBase Database · checked Sep 28, 2026
15	K2 Group, INC	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “K2 Group was founded in 2004 as a Service-Disabled, Veteran-Owned Small Business (SDVOSB) by an experienced Special Forces operator with advanced degrees in Information Security.” Source: RevenueBase Database · checked Sep 28, 2026
16	AET Federal INC	Strong evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	11-50	21 contacts →
	Strong evidence “AET Federal, Inc.(AET) is a leading government contracting company specializing in technology-enabled mission support services for the Department of Defense and Civilian agencies.” Source: RevenueBase Database · checked Sep 28, 2026
17	CMA Technology, INC	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “CMA is a dynamic solutions provider specializing in delivering cutting-edge technology solutions to the federal government.” Source: RevenueBase Database · checked Sep 28, 2026
18	Assured Enterprises, INC	Partial evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Partial evidence “Assured Enterprises provides expert cybersecurity assessments, consulting services and products.” Source: RevenueBase Database · checked Sep 28, 2026
19	Ices Corporation Systems Thinking Work	Partial evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	51-200	8 contacts →
	Partial evidence “iCES Corporation is a premier Technology and Engineering firm specializing in Artificial Intelligence, Cybersecurity, and Data Science.” Source: RevenueBase Database · checked Sep 28, 2026
20	Cyberculture	Partial evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “CyberCulture \| Enterprise-Grade Cybersecurity.” Source: RevenueBase Database · checked Sep 28, 2026
21	Synergy Solutions And Innovations, LLC	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
22	Arcane Cyber	Partial evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “If building your business is your priority, small business cybersecurity and information security is ours.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: defense contractor cybersecurity services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names defense contractor cybersecurity services.
Partial evidence: Its own public description names part of defense contractor cybersecurity services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name defense contractor cybersecurity services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 22 of 37 defense contractor cybersecurity services based in Vienna, United States

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Defense contractor cybersecurity services based in Vienna, United States at a glance

As of Sep 28, 2026

33.6%Verified-email coverage

53.6Average contacts per company

51-200Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than for Vienna, so it is reported there. Company counts and contact totals on this page are exact for Vienna, over 37 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 defense contractor cybersecurity services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Vienna, United States whose own description of what they do matches “defense contractor cybersecurity services”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names defense contractor cybersecurity services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among defense contractor cybersecurity services, and records with no verified work email. Companies headquartered outside Vienna 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 its RevenueBase Smart Search 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, 667 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 28, 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.

Defense contractor cybersecurity services by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names defense contractor cybersecurity services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many defense contractor cybersecurity services are there based in Vienna, United States?

RevenueBase identified 37 defense contractor cybersecurity services headquartered in Vienna, 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?

Aretum, headquartered in Vienna, tops this list with the largest team on record.

Which city in the United States has the most defense contractor cybersecurity services?

Washington leads the United States with 115 headquartered companies, followed by New York (81) and Arlington (76). Vienna has 37.

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 667 verified decision-maker contacts tracked across these 37 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 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 Smart Search, 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.