Company lists · Data refreshed October 2026

Top 23 Defense cybersecurity companies based in Reston, United States

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

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 40 companies tracked

RevenueBase identified 40 company matches for defense cybersecurity companies associated with Reston, United States as of October 2026 and tracks 14,214 professional contacts across them, including 1,355 with verified work emails. Across the United States, New York is the largest hub for this category (86 companies); Reston has 40.

This list covers company matches for defense cybersecurity companies associated with Reston, 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 1, 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 1, 2026 How this list was built

40Companies

14,214Contacts tracked

1,355Verified emails

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The 23 largest defense cybersecurity companies based in Reston, United States

Ranked by team size

Top 23 of 40 company matches for defense cybersecurity companies based in Reston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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	Peraton	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	10001+	10,793 contacts →
	Exact match “At Peraton, we're at the forefront of delivering the next big thing every day.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2	Guidepoint Security	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	1,232 contacts →
	Exact match “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	Quantum SKY	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	872 contacts →
	Exact match “Quantum Sky is a mission technology company that builds secure AI, cyber, cloud, and quantum capabilities for defense, intelligence, and federal civilian agencies.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	Evolver	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	501-1,000	235 contacts →
	Exact match “Founded in Evolver was built on a clear purpose: to help government and enterprise customers achieve long-term success.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	Mindpoint Group, A Quantum SKY Company	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	204 contacts →
	Exact match “MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Intelligent Waves	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	51-200	185 contacts →
	Exact match “Intelligent Waves, a veteran-owned organization, delivers secure, innovative technology solutions for federal defense and intelligence missions.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	Synertex LLC	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	201-500	116 contacts →
	Exact match “Synertex LLC is an Enterprise IT and Solutions Development company focusing on machine learning, cloud and big data solutions, cyber security, and CBRN defense (Chemical…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	Fortinet Federal	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	51-200	70 contacts →
	Exact match “Fortinet Federal is dedicated to bringing expertise and commitment to U.S.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	Axonius Federal Systems	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	51-200	65 contacts →
	Exact match “Axonius Federal Systems (AFS) provides a unified asset inventory and continuous insight into exposures, all while aligning with key mandates like Zero Trust, CDM, FISMA, EO 14028…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	Global Infotek, INC	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	51-200	58 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	Volexity	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	51-200	44 contacts →
	Exact match “Volexity is a leading provider of threat intelligence and incident suppression services and solutions based in the Washington, DC area.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	Rogerco, INC	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	51-200	35 contacts →
	Exact match “ROGERCO (RCI) is an integrated technology and communications consultancy supporting government and critical infrastructure missions.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Knowledge Consulting Group	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	201-500	29 contacts →
	Exact match “Knowledge Consulting Group (KCG) is one of the largest privately held cybersecurity services firms in the United States.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Mission Phoenix, LLC	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	11-50	26 contacts →
	Exact match “Mission Phoenix \| Resilience Redefined Mission Phoenix is a certified small business redefining resilience across the federal landscape.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	Vexterra Group	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	11-50	20 contacts →
	Exact match “Vexterra Group is a Woman-Owned Small Business (WOSB), Small-Disadvantaged Business (SDB) and 8a certified digital forensic and cyber security engineering firm headquartered in…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	Tenacity Solutions Incorporated	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	51-200	18 contacts →
	Exact match “Tenacity Provides: Today's service oriented architectures, virtualized servers and increased demand for mobile service have made the difficult problem of securing important…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	Dark Circuit Labs	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	1-10	9 contacts →
	Exact match “Dark Circuit Labs is an offensive cyber security company that provides the highest quality products and services to support the nation’s operational missions.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	Axiom Technologies LLC	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	1-10	7 contacts →
	Exact match “Successful businesses today require interactions with the networked world, where threats continuously probe for new ways to obtain your critical information.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	River Front Services, INC	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	1-10	5 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	Legion X	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	1-10	3 contacts →
	Exact match “Legion X is a company that develops on-demand, custom cyber solutions through applied research, prototyping, and engineering services.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Empower Solutions	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	1-10	2 contacts →
	Exact match “Empower Solutions is a trusted IT partner that specializes in providing comprehensive IT and cybersecurity solutions to clients across the Federal Government and private sectors.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	Business Cyber Shield	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	11-50	1 contacts →
	Exact match “WHAT WE DO: To put it simply, think of Business Cyber Shield as your virtual Chief Information Security Officer, enabling you to focus on what's important within your organization.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	Cymantis	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	1-10	1 contacts →
	Exact match “Cymantis is a full-range cybersecurity & Technology Consulting practice specializing in: 1_ Enterprise & Startup Cybersecurity strategy 2_ Federal, financial, & healthcare…” Recorded in the RevenueBase company graph · Oct 1, 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 “defense cybersecurity companies”. 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 23 of 40 defense cybersecurity companies based in Reston, United States

See the full list, filter by size, metro and specialty, and access 1,355 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Defense cybersecurity companies based in Reston, United States at a glance

As of Oct 1, 2026

9.5%Verified-email coverage

355.4Average contacts per company

11-50Median size (employees)

Oct 1, 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 Reston, so it is reported there. Company counts and contact totals on this page are exact for Reston, over 40 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 Reston, United States whose business descriptions match “defense cybersecurity companies” 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 1,355 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 1, 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.

Defense cybersecurity companies 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 “defense cybersecurity companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many defense cybersecurity companies are there based in Reston, United States?

RevenueBase identified 40 company matches for defense cybersecurity companies associated with Reston, 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?

Peraton 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 defense cybersecurity companies?

New York leads the United States with 86 company records, followed by Washington (86) and Austin (61). Reston has 40.

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 1,355 professional contacts with verified work emails tracked across these 40 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 1, 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.