Company lists · Data refreshed September 2026

Top 25 Cybersecurity contractors based in Ashburn, United States

Name: Cybersecurity contractors based in Ashburn, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 64 companies tracked

RevenueBase identified 64 company matches for cybersecurity contractors associated with Ashburn, United States as of September 2026 and tracks 1,417 professional contacts across them, including 397 with verified work emails. Across the United States, New York is the largest hub for this category (293 companies); Ashburn has 64.

This list covers company matches for cybersecurity contractors associated with Ashburn, 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 21, 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 21, 2026 How this list was built

64Companies

1,417Contacts tracked

397Verified emails

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The 25 largest cybersecurity contractors based in Ashburn, United States

Ranked by team size

Top 25 of 64 company matches for cybersecurity contractors based in Ashburn, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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	Telos Corporation	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	501-1,000	629 contacts →
	Exact match “Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	CIS Secure	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	201-500	119 contacts →
	Exact match “CIS Secure is a U.S-based defense technology company delivering mission-ready secure communications solutions and services for defense, intelligence, and federal organizations.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Delviom, LLC	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	51-200	63 contacts →
	Exact match “Delviom is a distinguished provider of cutting-edge cybersecurity and business intelligence (BI) solutions, dedicated to helping organizations strengthen their security posture…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Inquisit	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	51-200	50 contacts →
	Exact match “At InquisIT, we believe the business of government is vital to our nation and demands the highest caliber of contractor services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Agensys Corporation	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	51-200	44 contacts →
	Exact match “Agensys Corporation provides agile processes, skilled people, and technology solutions to help transform our Defense, Intelligence and Civilian agency customers.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Securdi	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	51-200	37 contacts →
	Exact match “We are a Cyber Security strategy and implementation company.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	American Operations Corporation	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	51-200	37 contacts →
	Exact match “American Operations Corporation (American Ops) our focus is on National Defense and Security Excellence.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Lunarline, INC	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	51-200	34 contacts →
	Exact match “Lunarline is a leading cybersecurity and 3PAO service provider to the U.S.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Punch Cyber Analytics Group	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	11-50	29 contacts →
	Exact match “PUNCH is a cyber-consulting firm that provides advanced analytics and strategic support to government and commercial clients.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Varmoda Tech	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	11-50	24 contacts →
	Exact match “At Varmoda Tech, we are on a mission to revolutionize industries and drive meaningful change through cutting-edge technology solutions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Obscurity Labs	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	11-50	23 contacts →
	Exact match “Obscurity Labs is a veteran owned cybersecurity firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Purple JAY Sdvosb	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	11-50	18 contacts →
	Exact match “Purple Jay is a boutique infosec company that is driven to provide actionable guidance and design tailored solutions for the objective of defensible security.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Protect3 Solutions	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	11-50	11 contacts →
	Exact match “Protect3 provides cyber security solutions for government agencies.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Secure Anchor Consulting	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	11-50	10 contacts →
	Exact match “Secure Anchor Consulting provides high-touch cybersecurity services that help organizations prevent security breaches, detect network intrusions, and respond to advanced threats.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Diamond Information Systems, LLC	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	11-50	10 contacts →
	Exact match “Diamond provides outstanding results for our clients, with a focus on integrated, flexible, and economical solutions that meet business objectives.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Trinity Enterprise Services, LLC	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	11-50	8 contacts →
	Exact match “TRINITY ENTERPRISE SERVICES, LLC is a Veteran-owned small business that leverages our combined 50+ years in the Information Technology field to provide quality IT experts in the…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Cybertlabs	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	11-50	6 contacts →
	Exact match “Cybersecurity must evolve in lock steps with organization’s technology and business processes.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Monoc Securities LLC	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	1-10	6 contacts →
	Exact match “Monoc Securities LLC is a trusted security consulting firm specializing in the U.S.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Cisonow	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	11-50	5 contacts →
	Exact match “At CISOnow, we deliver expert CISO Advisory Services, proactive security assessments, and managed security solutions to help organizations stay ahead of evolving threats and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Rsekure Technologies	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	11-50	5 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Foursyte	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	1-10	5 contacts →
	Exact match “Foursyte delivers high-performance solutions for national security and critical government missions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Nohack	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	1-10	5 contacts →
	Exact match “A dynamic cybersecurity consulting partner offering tailored cyber security, IT, management, and career services designed to meet the unique needs of small businesses and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Managenet INC	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	11-50	5 contacts →
	Exact match “Managenet Inc is an information technology and services company based out of P.O.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Cognito Cyber Group	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	11-50	4 contacts →
	Exact match “Cognito Cyber Group (CCG) is a diverse I.T.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Toptimum	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	1-10	4 contacts →
	Exact match “We provide operational solutions to both commercial business and national security clients through a dedicated workforce of experienced, mission-focused officers.” Recorded in the RevenueBase company graph · Sep 21, 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 contractors”. 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 64 cybersecurity contractors based in Ashburn, United States

See the full list, filter by size, metro and specialty, and access 397 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity contractors based in Ashburn, United States at a glance

As of Sep 21, 2026

28.0%Verified-email coverage

22.1Average contacts per company

11-50Median size (employees)

Sep 21, 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 Ashburn, so it is reported there. Company counts and contact totals on this page are exact for Ashburn, over 64 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 Ashburn, United States whose business descriptions match “cybersecurity contractors” 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 397 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 21, 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 contractors 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 contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity contractors are there based in Ashburn, United States?

RevenueBase identified 64 company matches for cybersecurity contractors associated with Ashburn, 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?

Telos Corporation 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 contractors?

New York leads the United States with 293 company records, followed by Washington (220) and Austin (170). Ashburn has 64.

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 397 professional contacts with verified work emails tracked across these 64 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 21, 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.