Company lists · Data refreshed September 2026

Top 25 Defense contractor cybersecurity services based in Reston, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 70 companies tracked

RevenueBase identified 70 defense contractor cybersecurity services headquartered in Reston, United States as of September 2026 and tracks 19,810 professional contacts across them, including 4,939 with verified work emails. Across the United States, Washington is the largest hub for this category (115 companies); Reston has 70.

This list covers defense contractor cybersecurity services headquartered in Reston, 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

70Companies

19,810Contacts tracked

4,939Verified emails

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The 25 largest defense contractor cybersecurity services based in Reston, United States

Ranked by team size

Top 25 of 70 defense contractor cybersecurity services based in Reston, 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	Peraton	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	10001+	10,793 contacts →
	Indirect evidence “At Peraton, we're at the forefront of delivering the next big thing every day.” Source: RevenueBase Database · checked Sep 28, 2026
2	Asrc Federal	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	5,001-10,000	4,542 contacts →
	Indirect evidence “ASRC Federal’s employees provide solutions for more than 30 U.S.” Source: RevenueBase Database · checked Sep 28, 2026
3	Guidepoint Security	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,232 contacts →
	Partial evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 28, 2026
4	Quantum SKY	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	872 contacts →
	Partial evidence “Quantum Sky is a mission technology company that builds secure AI, cyber, cloud, and quantum capabilities for defense, intelligence, and federal civilian agencies.” Source: RevenueBase Database · checked Sep 28, 2026
5	Evolver	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	501-1,000	235 contacts →
	Indirect evidence “Founded in Evolver was built on a clear purpose: to help government and enterprise customers achieve long-term success.” Source: RevenueBase Database · checked Sep 28, 2026
6	Riva Solutions, INC	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	201-500	224 contacts →
	Partial evidence “RIVA Solutions, Inc.(RIVA) is a new kind of government contractor providing Digital Transformation to the public sector.” Source: RevenueBase Database · checked Sep 28, 2026
7	Mindpoint Group, A Quantum SKY Company	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	204 contacts →
	Partial evidence “MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Source: RevenueBase Database · checked Sep 28, 2026
8	Intelligent Waves	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	51-200	185 contacts →
	Partial evidence “Intelligent Waves, a veteran-owned organization, delivers secure, innovative technology solutions for federal defense and intelligence missions.” Source: RevenueBase Database · checked Sep 28, 2026
9	ISI	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	51-200	175 contacts →
	Indirect evidence “ISI is the only partner that meets both your compliance and security needs.” Source: RevenueBase Database · checked Sep 28, 2026
10	The Wexford Group	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	501-1,000	160 contacts →
	Indirect evidence “The Wexford Group International (Wexford) is a wholly owned subsidiary of CACI, INC-FEDERAL.” Source: RevenueBase Database · checked Sep 28, 2026
11	Caci Acquired Applied Insight, LLC	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	501-1,000	159 contacts →
	Indirect evidence “Applied Insight works closely with agencies and industry to overcome technical and cultural hurdles to innovation, empowering them with the latest end-to-end cloud infrastructure…” Source: RevenueBase Database · checked Sep 28, 2026
12	Improvix Technologies	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	201-500	107 contacts →
	Indirect evidence “Improvix Technologies was founded to empower federal agencies to achieve their mission objectives through innovative, value-oriented solutions.” Source: RevenueBase Database · checked Sep 28, 2026
13	Zantech	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	51-200	91 contacts →
	Partial evidence “Zantech delivers advanced technology solutions to US Government agencies, specializing in digital modernization, cybersecurity, and cloud computing for mission-critical operations…” Source: RevenueBase Database · checked Sep 28, 2026
14	Cybersheath	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	51-200	80 contacts →
	Partial evidence “CyberSheath is one of the industry’s few one-stop cybersecurity compliance service providers, going beyond assessment and software licensing to solve the whole problem.” Source: RevenueBase Database · checked Sep 28, 2026
15	Secureit	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	51-200	77 contacts →
	Partial evidence “SecureIT is a leading provider of cybersecurity management consulting and technical services to government agencies, corporations and non-profit organizations.” Source: RevenueBase Database · checked Sep 28, 2026
16	Fortinet Federal	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	51-200	70 contacts →
	Indirect evidence “Fortinet Federal is dedicated to bringing expertise and commitment to U.S.” Source: RevenueBase Database · checked Sep 28, 2026
17	Global Infotek, INC	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	51-200	58 contacts →
	Indirect evidence “Global InfoTek, Inc.(GITI) is a mid-sized, award-winning leader in designing, developing, and deploying cutting-edge technologies that address the nation's most critical cyber and…” Source: RevenueBase Database · checked Sep 28, 2026
18	Breakforth Solutions, Inc. ED Wosb	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	51-200	46 contacts →
	Indirect evidence “BreakForth Solutions, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
19	Vaultes	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	51-200	35 contacts →
	Partial evidence “Vaultes is a Service Disabled Veteran Owned Small Business (SDVOSB) and an accredited FedRAMP 3PAO and Authorized C3PAO specializing in cybersecurity, compliance, and engineering…” Source: RevenueBase Database · checked Sep 28, 2026
20	Rogerco, INC	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	51-200	35 contacts →
	Indirect evidence “ROGERCO (RCI) is an integrated technology and communications consultancy supporting government and critical infrastructure missions.” Source: RevenueBase Database · checked Sep 28, 2026
21	Veros Technologies, LLC	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	51-200	32 contacts →
	Indirect evidence “Veros Technologies is an innovative small business based in Northern Virginia, focused on providing premier technical consulting services to private and public sector clients.” Source: RevenueBase Database · checked Sep 28, 2026
22	Warcollar Industries, LLC	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	51-200	32 contacts →
	Partial evidence “A Veteran-Owned Small Business that brings CyberSecurity and Internet of Things solutions to civilian and government clientele.” Source: RevenueBase Database · checked Sep 28, 2026
23	Knowledge Consulting Group	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	201-500	29 contacts →
	Partial evidence “Knowledge Consulting Group (KCG) is one of the largest privately held cybersecurity services firms in the United States.” Source: RevenueBase Database · checked Sep 28, 2026
24	Stellarpeak Corp	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	51-200	26 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
25	J3	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “J3 delivers cutting-edge, system-level technology solutions that drive efficiency, security, and innovation.” 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 25 of 70 defense contractor cybersecurity services based in Reston, United States

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

As of Sep 28, 2026

24.9%Verified-email coverage

283.0Average 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

5,001-10,000

10001+

Email recency for this list is measured across the whole United States list rather than for Reston, so it is reported there. Company counts and contact totals on this page are exact for Reston, over 70 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 Reston, 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 Reston 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, 4,939 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 Reston, United States?

RevenueBase identified 70 defense contractor cybersecurity services headquartered in Reston, 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?

Peraton, headquartered in Reston, 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). Reston has 70.

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 4,939 verified decision-maker contacts tracked across these 70 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.