Company lists · Data refreshed October 2026

Top 25 Cybersecurity services firms based in Reston, United States

Name: Cybersecurity services firms 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 68 companies tracked

RevenueBase identified 68 company matches for cybersecurity services firms associated with Reston, United States as of October 2026 and tracks 3,456 professional contacts across them, including 1,486 with verified work emails. Across the United States, New York is the largest hub for this category (276 companies); Reston has 68.

This list covers company matches for cybersecurity services firms 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

68Companies

3,456Contacts tracked

1,486Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest cybersecurity services firms based in Reston, United States

Ranked by team size

Top 25 of 68 company matches for cybersecurity services firms 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	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
2	Paladion An Atos Business	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	501-1,000	369 contacts →
	Exact match “As of April 2023, Paladion is part of Atos Group.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	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
4	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
5	ISI	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	51-200	175 contacts →
	Exact match “ISI is the only partner that meets both your compliance and security needs.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	At-Risk International, INC	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	51-200	139 contacts →
	Exact match “Our goal is to create and maintain safe environments by providing threat analysis, protection, investigations, consulting, intelligence and security training services everywhere…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	Centripetal	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	51-200	103 contacts →
	Exact match “We stand in the breach so you don’t have to.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	Neovera	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	51-200	98 contacts →
	Exact match “Neovera helps financial institutions and regulated organizations protect how value moves across money, data, identities, applications, and infrastructure.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	Cybersheath	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	51-200	80 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	Secureit	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	51-200	77 contacts →
	Exact match “SecureIT is a leading provider of cybersecurity management consulting and technical services to government agencies, corporations and non-profit organizations.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	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
12	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
13	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
14	ZEN Strategics LLC	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	51-200	55 contacts →
	Exact match “Zen Strategics, a Titan Technologies Company, offers innovative Cybersecurity, Cloud Migration, and Information Technology Modernization solutions.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	Federal Engineering, INC	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	11-50	54 contacts →
	Exact match “Federal Engineering is a leading, nationwide firm providing analysis, design, procurement, and implementation support services for public safety and public service organizations…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	Converged Security Solutions NOW Evolver	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	501-1,000	50 contacts →
	Exact match “CSS is now Evolver!” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	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
18	Vaultes	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	51-200	35 contacts →
	Exact match “Vaultes is a Service Disabled Veteran Owned Small Business (SDVOSB) and an accredited FedRAMP 3PAO and Authorized C3PAO specializing in cybersecurity, compliance, and engineering…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	Warcollar Industries, LLC	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	51-200	32 contacts →
	Exact match “A Veteran-Owned Small Business that brings CyberSecurity and Internet of Things solutions to civilian and government clientele.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	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
21	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
22	Stratum Security	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	11-50	18 contacts →
	Exact match “Founded in 2005 by security veterans, Stratum Security is an information security consulting company that focuses on providing clear and concise risk guidance to its clients…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	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
24	Earthling Security	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	11-50	13 contacts →
	Exact match “Established in 2012 & based out of Tyson’s Corner, Virginia, Earthling Security is certified by the Small Business Administration as an 8(a) Small \ Disadvantaged, Minority owned…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	Cloud Security Partners	Exact match	Reston, VA, United StatesHQ recorded Oct 1, 2026	11-50	11 contacts →
	Exact match “Cloud Security Partners is a human-centered cybersecurity firm enabling organizations to thrive securely.” 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 “cybersecurity services firms”. 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 25 of 68 cybersecurity services firms based in Reston, United States

See the full list, filter by size, metro and specialty, and access 1,486 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Cybersecurity services firms based in Reston, United States at a glance

As of Oct 1, 2026

43.0%Verified-email coverage

50.8Average 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

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 68 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 “cybersecurity services firms” 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 1,486 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.

Cybersecurity services firms 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 services firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity services firms are there based in Reston, United States?

RevenueBase identified 68 company matches for cybersecurity services firms 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?

Guidepoint Security 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 services firms?

New York leads the United States with 276 company records, followed by Washington (154) and Austin (153). Reston has 68.

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 1,486 professional contacts with verified work emails tracked across these 68 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.

Ready to reach these companies? Verified emails and direct dials for all 68 cybersecurity services firms based in Reston, United States. Start with a free account, no credit card.

Download this list →

Related lists

Cybersecurity services firms by geography

Browse the directory

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.