Company lists · Data refreshed September 2026

Top 25 Cybersecurity consulting for defense based in the United States

Name: Cybersecurity consulting for defense based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 5,960 companies tracked

RevenueBase identified 5,960 company matches for cybersecurity consulting for defense associated with the United States as of September 2026 and tracks 174,554 professional contacts across them, including 30,724 with verified work emails and 74,727 with mobile numbers. New York is the largest hub.

This list covers company matches for cybersecurity consulting for defense associated with the 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 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 Sep 1, 2026 How this list was built

5,960Companies

174,554Contacts tracked

30,724Verified emails

74,727Mobile numbers

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The 25 largest cybersecurity consulting for defense based in the United States

Ranked by team size

Top 25 of 5,960 company matches for cybersecurity consulting for defense based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 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	Northrop Grumman	Exact match	San Diego, CA, United States	10001+	75,000 contacts →
	Exact match “We are a close-knit community of big thinkers collaborating to keep the world safe.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
2	Symantec	Exact match	San Jose, CA, United States	10001+	11,179 contacts →
	Exact match “Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
3	Sierra Nevada Corporation	Exact match	Sparks, NV, United States	1,001-5,000	4,442 contacts →
	Exact match “SNC is a trusted global leader in aerospace and national security.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
4	OPTIV	Exact match	Chantilly, VA, United States	1,001-5,000	2,206 contacts →
	Exact match “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
5	Thales Cybersecurity Products	Exact match	Austin, TX, United States	1,001-5,000	1,252 contacts →
	Exact match “Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
6	Guidepoint Security	Exact match	Tampa, FL, United States	1,001-5,000	1,234 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 · Sep 1, 2026 · View company records in RevenueBase
7	VT Group VTG	Exact match	California, MD, United States	1,001-5,000	1,180 contacts →
	Exact match “VTG delivers force modernization and digital transformation solutions that expand America’s competitive advantage in the modern battlespace.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
8	Agile Defense	Exact match	Huntsville, AL, United States	1,001-5,000	1,080 contacts →
	Exact match “Agile Defense: Always Evolving Agile Defense stands at the forefront of innovation, driving advanced capabilities and solutions tailored to the most critical national security and…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
9	Coalfire	Exact match	Chicago, IL, United States	1,001-5,000	960 contacts →
	Exact match “Coalfire is the premier Cybersecurity and Compliance Services leader for the tech, healthcare, and finance industries.(This page is maintained by Marketing.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
10	Tyto Athene, LLC	Exact match	Amherst, VA, United States	1,001-5,000	858 contacts →
	Exact match “At Tyto Athene, we help turn Data to Dominance.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
11	Arcfield	Exact match	Chantilly, VA, United States	1,001-5,000	791 contacts →
	Exact match “Arcfield was purpose-built to protect the nation and its allies through innovations in systems engineering and integration, space and mission launch assurance, cybersecurity and…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
12	Telos Corporation	Exact match	Las Vegas, NV, United States	501-1,000	636 contacts →
	Exact match “Telos empowers and protects the world’s most security-conscious organizations with solutions for continuous security assurance of individuals, systems, and information.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
13	Planned Systems International	Exact match	Valparaiso, FL, United States	1,001-5,000	608 contacts →
	Exact match “Since 1988, PSI teams have provided our government customers with innovative, cost effective solutions that solve today’s complex challenges, improve operational efficiencies, and…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
14	Applied Research Solutions	Exact match	Boston, MA, United States	501-1,000	595 contacts →
	Exact match “Started in 2012, ARS is a growing business serving the Department of Defense and Intelligence Community.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
15	Ultraviolet Cyber	Exact match	Phoenix, AZ, United States	501-1,000	517 contacts →
	Exact match “UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
16	Securityhq	Exact match	New York, NY, United States	501-1,000	492 contacts →
	Exact match “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
17	Gryphon Technologies, INC	Exact match	Washington, DC, United States	1,001-5,000	454 contacts →
	Exact match “Gryphon Technologies - now part of ManTech, is headquartered in Washington DC.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
18	United Security, Inc. USI	Exact match	Boston, MA, United States	1,001-5,000	409 contacts →
	Exact match “United Security Inc.(USI) provides personalized security solutions enhanced by advanced technology and cyber services.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
19	Edgewater Federal Solutions, INC	Exact match	Pocatello, ID, United States	501-1,000	407 contacts →
	Exact match “Edgewater Federal Solutions was founded in 2002 with the mission of being the best IT consulting company possible for our government clients, our contracting partners and our…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
20	Macaulay-Brown, Inc. Macb , An Alion Company	Exact match	Dayton, OH, United States	1,001-5,000	382 contacts →
	Exact match “For 39 years, MacAulay-Brown, Inc.(MacB), an Alion Company, has been solving many of the Nation’s most complex National Security challenges.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
21	System High Corporation	Exact match	Chantilly, VA, United States	501-1,000	369 contacts →
	Exact match “System High Corporation, a Veilant company, delivers the most advanced protection and secrecy solutions to secure and strengthen critical missions, programs, operations, and…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
22	Dark Wolf	Exact match	Bellevue, NE, United States	501-1,000	348 contacts →
	Exact match “Dark Wolf provides DevSecOps agile software development, information operations, penetration testing and incident response, applied research and rapid prototyping, machine…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
23	Markon	Exact match	Falls Church, VA, United States	501-1,000	271 contacts →
	Exact match “Markon is the leader across full-spectrum cyber and technology-enabled solutions for the most critical national security priorities.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
24	VMD Corp	Exact match	Sacramento, CA, United States	501-1,000	251 contacts →
	Exact match “About VMD VMD, now a part of Xcelerate Solutions, is a leading defense and national security company, delivering integrated solutions in enterprise security, strategic consulting…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
25	Threat Tec, LLC	Exact match	Hampton, VA, United States	501-1,000	249 contacts →
	Exact match “At Threat Tec, we are passionate about enabling and supporting the interests of the United States and its allies.” Recorded in the RevenueBase company graph · Sep 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 consulting for defense”. 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 5,960 cybersecurity consulting for defense based in the United States

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Cybersecurity consulting for defense based in the United States at a glance

As of Sep 1, 2026

17.6%Verified-email coverage

42.8%Mobile-number coverage

29.3Average contacts per company

1-10Median size (employees)

2.7%Largest-city concentration · New York

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

3,480

11-50

1,725

51-200

545

201-500

118

501-1,000

1,001-5,000

10001+

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 the United States whose business descriptions match “cybersecurity consulting for defense” 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 30,724 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 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 consulting for defense by metro

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 consulting for defense”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity consulting for defense are there based in the United States?

RevenueBase identified 5,960 company matches for cybersecurity consulting for defense associated with the 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?

Northrop Grumman tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most cybersecurity consulting for defense?

New York leads with 161 company records, followed by Washington (155) and Atlanta (114).

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 30,724 professional contacts with verified work emails tracked across these 5,960 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 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.