Company lists · Data refreshed September 2026

Top 25 Military cybersecurity companies worldwide

Name: Military cybersecurity companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 4,061 companies tracked

RevenueBase identified 4,061 military cybersecurity companies worldwide as of September 2026 and tracks 222,754 professional contacts across them, including 43,444 with verified work emails and 78,549 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers military cybersecurity companies worldwide, 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 5, 2026. Country and city lists for military cybersecurity companies follow the table.

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 5, 2026 86% judged on-target in blind review

4,061Companies

222,754Contacts tracked

43,444Verified emails

78,549Mobile numbers

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

The 25 largest military cybersecurity companies worldwide

Ranked by team size

Top 25 of 4,061 military cybersecurity companies worldwide, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to military cybersecurity companies: 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	Northrop Grumman	Indirect evidence	Falls Church, VA, United StatesHQ checked Sep 5, 2026	10001+	74,984 contacts →
	Indirect evidence “We are a close-knit community of big thinkers collaborating to keep the world safe.” Source: RevenueBase Database · checked Sep 5, 2026
2	Palo Alto Networks	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 5, 2026	10001+	18,431 contacts →
	Partial evidence “Palo Alto Networks, the global cybersecurity leader, is shaping the cloud-centric future with technology that is transforming the way people and organizations operate.” Source: RevenueBase Database · checked Sep 5, 2026
3	Fortinet	Indirect evidence	Sunnyvale, CA, United StatesHQ checked Sep 5, 2026	10001+	14,289 contacts →
	Indirect evidence “Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Source: RevenueBase Database · checked Sep 5, 2026
4	Orange Cyberdefense	Partial evidence	Nanterre, FranceHQ checked Sep 5, 2026	1,001-5,000	3,673 contacts →
	Partial evidence “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Source: RevenueBase Database · checked Sep 5, 2026
5	Elbit Systems	Indirect evidence	Haifa, IsraelHQ checked Sep 5, 2026	10001+	2,116 contacts →
	Indirect evidence “Elbit Systems is a leading global defense technology company, delivering advanced solutions for a secure and safer world.” Source: RevenueBase Database · checked Sep 5, 2026
6	Site سايت	Indirect evidence	Al Nakheel, Saudi ArabiaHQ checked Sep 5, 2026	501-1,000	1,378 contacts →
	Indirect evidence “We are established for enriching local content in designing, developing, and operating secure digital computing environments through Saudi talents, by fulfilling our role as a…” Source: RevenueBase Database · checked Sep 5, 2026
7	Trustwave, A Levelblue Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	501-1,000	874 contacts →
	Partial evidence “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Source: RevenueBase Database · checked Sep 5, 2026
8	Quantum SKY	Indirect evidence	Reston, VA, United StatesHQ checked Sep 5, 2026	1,001-5,000	872 contacts →
	Indirect 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 5, 2026
9	Application Specialist Kompany ASK	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 5, 2026	n/a	785 contacts →
	Indirect evidence “ASK is now Convergence Networks!” Source: RevenueBase Database · checked Sep 5, 2026
10	STR	Indirect evidence	Woburn, MA, United StatesHQ checked Sep 5, 2026	501-1,000	763 contacts →
	Indirect evidence “STR is driven to deliver impact.” Source: RevenueBase Database · checked Sep 5, 2026
11	SISA	Partial evidence	Bengaluru, IndiaHQ checked Sep 5, 2026	201-500	743 contacts →
	Partial evidence “SISA is a global forensics-driven cybersecurity solutions company, trusted by leading organizations for securing their businesses with robust preventive, detective, and corrective…” Source: RevenueBase Database · checked Sep 5, 2026
12	ROKE	Indirect evidence	Romsey, United KingdomHQ checked Sep 5, 2026	1,001-5,000	679 contacts →
	Indirect evidence “At Roke, we stand at the forefront of defence and security, delivering cutting-edge intelligence and engineering solutions that protect nations, troops, borders, and businesses.” Source: RevenueBase Database · checked Sep 5, 2026
13	Fireeye, INC	Indirect evidence	Milpitas, CA, United StatesHQ checked Sep 5, 2026	1,001-5,000	676 contacts →
	Indirect evidence “We are now officially Trellix!” Source: RevenueBase Database · checked Sep 5, 2026
14	MASS	Indirect evidence	St Neots, United KingdomHQ checked Sep 5, 2026	201-500	640 contacts →
	Indirect evidence “MASS, part of the Cohort plc group, helps you realise the value of your data.” Source: RevenueBase Database · checked Sep 5, 2026
15	Everfox	Indirect evidence	Herndon, United StatesHQ checked Sep 5, 2026	1,001-5,000	636 contacts →
	Indirect evidence “Everfox delivers trusted connectivity to protect the world's most critical environments, safeguarding the sensitive information behind decision advantage.” Source: RevenueBase Database · checked Sep 5, 2026
16	Telos Corporation	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 5, 2026	501-1,000	629 contacts →
	Indirect evidence “Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Source: RevenueBase Database · checked Sep 5, 2026
17	Advens	Partial evidence	Paris, ItalyHQ checked Sep 5, 2026	501-1,000	586 contacts →
	Partial evidence “Advens is a European, independent and outstanding leader in cybersecurity.” Source: RevenueBase Database · checked Sep 5, 2026
18	Ultraviolet Cyber	Indirect evidence	Mclean, VA, United StatesHQ checked Sep 5, 2026	501-1,000	523 contacts →
	Indirect evidence “UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program, finding what's vulnerable, stopping…” Source: RevenueBase Database · checked Sep 5, 2026
19	own.security	Partial evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	506 contacts →
	Partial evidence “Founded in 2008, OWN is a Pure Player in cybersecurity, with offices in Paris, Rennes and Toulouse, but with a presence throughout France with its fully remote employees.” Source: RevenueBase Database · checked Sep 5, 2026
20	Securityhq	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	501-1,000	502 contacts →
	Partial evidence “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Source: RevenueBase Database · checked Sep 5, 2026
21	Protechmanize	Partial evidence	Thane, IndiaHQ checked Sep 5, 2026	501-1,000	484 contacts →
	Partial evidence “At ProTechmanize, we’re committed to making cybersecurity simpler, stronger, and more future ready for the organizations we serve.” Source: RevenueBase Database · checked Sep 5, 2026
22	United Security, Inc. USI	Indirect evidence	Red Bank, NJ, United StatesHQ checked Sep 5, 2026	1,001-5,000	416 contacts →
	Indirect evidence “United Security Inc.(USI) provides personalized security solutions enhanced by advanced technology and cyber services.” Source: RevenueBase Database · checked Sep 5, 2026
23	Safeway	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	201-500	399 contacts →
	Indirect evidence “A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Source: RevenueBase Database · checked Sep 5, 2026
24	G Data Cyberdefense	Indirect evidence	Bochum, GermanyHQ checked Sep 5, 2026	501-1,000	386 contacts →
	Indirect evidence “Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.” Source: RevenueBase Database · checked Sep 5, 2026
25	Macaulay-Brown, Inc. Macb , An Alion Company	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 5, 2026	1,001-5,000	381 contacts →
	Indirect evidence “For 39 years, MacAulay-Brown, Inc.(MacB), an Alion Company, has been solving many of the Nation’s most complex National Security challenges.” Source: RevenueBase Database · checked Sep 5, 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: military cybersecurity companies. 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 military cybersecurity companies.
Partial evidence: Its own public description names part of military cybersecurity companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name military cybersecurity companies. 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 4,061 military cybersecurity companies worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 43,444 reachable decision-makers.

Free signup · no credit card

View the full list →

Military cybersecurity companies worldwide at a glance

As of Sep 5, 2026

19.5%Verified-email coverage

35.3%Mobile-number coverage

54.9Average contacts per company

11-50Median size (employees)

2.7%Largest-city concentration · London

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

1,908

11-50

1,469

51-200

465

201-500

130

501-1,000

1,001-5,000

5,001-10,000

10001+

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 military cybersecurity companies, 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.
Coverage: 26 countries, largest first: the United States, India, the United Kingdom, Australia, Canada, France, Brazil, the United Arab Emirates, Israel, Türkiye and 16 more. Country and city lists for military cybersecurity companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “military cybersecurity companies”. 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 military cybersecurity companies), 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 military cybersecurity companies, and records with no verified work email.
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, 43,444 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 between September 5, 2026 and September 14, 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.

Military cybersecurity companies by location

41 lists · largest first

Every Military cybersecurity companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 military cybersecurity companies, 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 military cybersecurity companies are there worldwide?

RevenueBase identified 4,061 military cybersecurity companies worldwide 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?

Northrop Grumman, headquartered in Falls Church, tops this list with the largest team on record.

Which country has the most military cybersecurity companies?

The United States leads with 1,628 companies, followed by India (521) and the United Kingdom (254). Every military cybersecurity companies list by country and city is linked on this page.

Which city has the most military cybersecurity companies?

London leads with 109 headquartered companies, followed by Dubai (64) and Riyadh (49).

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 43,444 verified decision-maker contacts tracked across these 4,061 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 5, 2026 and September 14, 2026.

Ready to reach these companies? Verified emails and direct dials for all 4,061 military cybersecurity companies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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 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.