Company lists · Data refreshed September 2026

Top 25 Nonprofit cybersecurity companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 6,264 companies tracked

RevenueBase identified 6,264 nonprofit cybersecurity companies worldwide as of September 2026 and tracks 68,268 professional contacts across them, including 15,185 with verified work emails. The United States is the largest market and London the largest hub.

This list covers nonprofit 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 29, 2026. Country and city lists for nonprofit 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 29, 2026 86% judged on-target in blind review

6,264Companies

68,268Contacts tracked

15,185Verified emails

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The 25 largest nonprofit cybersecurity companies worldwide

Ranked by team size

Top 25 of 6,264 nonprofit cybersecurity companies worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to nonprofit 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	Kaspersky	Indirect evidence	Stadtkreis 1 Altstadt, FranceHQ checked Sep 29, 2026	5,001-10,000	3,822 contacts →
	Indirect evidence “Our mission is simple – building a safer world.” Source: RevenueBase Database · checked Sep 29, 2026
2	Bugcrowd	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	n/a	3,649 contacts →
	Indirect evidence “We are a crowdsourced security company that safeguards organizations' assets from sophisticated threat actors before they can strike-by uniting our customers with trusted hackers…” Source: RevenueBase Database · checked Sep 29, 2026
3	Bitdefender	Partial evidence	Bucuresti, RomaniaHQ checked Sep 29, 2026	1,001-5,000	2,172 contacts →
	Partial evidence “Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Source: RevenueBase Database · checked Sep 29, 2026
4	Sans Institute	Partial evidence	Rockville, MD, United StatesHQ checked Sep 29, 2026	n/a	1,886 contacts →
	Partial evidence “SANS is the most trusted and by far the largest source for information and cybersecurity training and certification in the world.” Source: RevenueBase Database · checked Sep 29, 2026
5	Offsec	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	201-500	879 contacts →
	Partial evidence “Empowering the world to fight cyber threats with indispensable cybersecurity skills and resources.” Source: RevenueBase Database · checked Sep 29, 2026
6	Application Specialist Kompany ASK	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 29, 2026	n/a	785 contacts →
	Indirect evidence “ASK is now Convergence Networks!” Source: RevenueBase Database · checked Sep 29, 2026
7	AVAST	Indirect evidence	Prague, Czech RepublicHQ checked Sep 29, 2026	1,001-5,000	635 contacts →
	Indirect evidence “Avast is a leader in Cyber Safety and part of Gen™ (NASDAQ: GEN), a global company dedicated to powering Digital Freedom with a family of trusted consumer brands.” Source: RevenueBase Database · checked Sep 29, 2026
8	Advens	Partial evidence	Paris, ItalyHQ checked Sep 29, 2026	501-1,000	586 contacts →
	Partial evidence “Advens is a European, independent and outstanding leader in cybersecurity.” Source: RevenueBase Database · checked Sep 29, 2026
9	Group-Ib	Partial evidence	SingaporeHQ checked Sep 29, 2026	501-1,000	528 contacts →
	Partial evidence “Founded in 2003 and headquartered in Singapore, Group-IB is a leading creator of cybersecurity technologies to investigate, prevent, and fight digital crime.” Source: RevenueBase Database · checked Sep 29, 2026
10	own.security	Partial evidence	Paris, FranceHQ checked Sep 29, 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 29, 2026
11	Cyber Security Forum Initiative	Indirect evidence	Omaha, NE, United StatesHQ checked Sep 29, 2026	51-200	417 contacts →
	Indirect evidence “The Cyber Security Forum Initiative (CSFI) is a non-profit organization headquartered in Omaha, NE and in Washington DC with a mission "to provide Cyber Warfare awareness…” Source: RevenueBase Database · checked Sep 29, 2026
12	Safeway	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 29, 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 29, 2026
13	G Data Cyberdefense	Indirect evidence	Bochum, GermanyHQ checked Sep 29, 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 29, 2026
14	Neverhack	Partial evidence	Paris, FranceHQ checked Sep 29, 2026	1,001-5,000	382 contacts →
	Partial evidence “NEVERHACK is a French group specialized in cybersecurity for over 40 years.” Source: RevenueBase Database · checked Sep 29, 2026
15	Techdefence	Partial evidence	Ahmedabad, IndiaHQ checked Sep 29, 2026	201-500	340 contacts →
	Partial evidence “TechDefence Labs (TechD Cybersecurity Limited) Award-winning \| Innovative \| Visionary We empower organizations across the globe to secure their applications, networks, and digital…” Source: RevenueBase Database · checked Sep 29, 2026
16	Instituto DE Defesa Cibernética	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 29, 2026	n/a	324 contacts →
	Indirect evidence “O Instituto de Defesa Cibernética (IDCiber) foi fundado em 2023 para enfrentar o crescente número e a complexidade das ameaças cibernéticas em todo o mundo.” Source: RevenueBase Database · checked Sep 29, 2026
17	Commissionaires BC	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 29, 2026	1,001-5,000	304 contacts →
	Indirect evidence “Commissionaires nationally is a private, Canadian, not-for-profit company with 15 independent divisions encompassing 50+ offices and more than employees.” Source: RevenueBase Database · checked Sep 29, 2026
18	Prescient Security	Partial evidence	Nashville, TN, United StatesHQ checked Sep 29, 2026	201-500	272 contacts →
	Partial evidence “Prescient Security is a global cybersecurity and compliance firm delivering risk-based audits, advanced penetration testing, and end-to-end framework support.” Source: RevenueBase Database · checked Sep 29, 2026
19	Secureyes	Partial evidence	Bangalore, IndiaHQ checked Sep 29, 2026	201-500	270 contacts →
	Partial evidence “SecurEyes is a global cybersecurity specialist firm offering advisory plus consulting services and reg-tech products solving for cybersecurity challenges so that business leaders…” Source: RevenueBase Database · checked Sep 29, 2026
20	Incibe	Indirect evidence	León, SpainHQ checked Sep 29, 2026	51-200	254 contacts →
	Indirect evidence “El Instituto Nacional de Ciberseguridad (INCIBE) es una organización perteneciente al Ministerio para la Transformación Digital y de la Función Pública, a través de la Secretaría…” Source: RevenueBase Database · checked Sep 29, 2026
21	Fox-It	Indirect evidence	Rijswijk, NetherlandsHQ checked Sep 29, 2026	201-500	233 contacts →
	Indirect evidence “Fox-IT prevents, solves and mitigates the most serious cyber threats with innovative solutions for government, defense, law enforcement, critical infrastructure, banking, and…” Source: RevenueBase Database · checked Sep 29, 2026
22	ZINAD	Partial evidence	San Francisco, United StatesHQ checked Sep 29, 2026	51-200	221 contacts →
	Partial evidence “ZINAD is a global leader in cybersecurity awareness and Human Threat Intelligence.” Source: RevenueBase Database · checked Sep 29, 2026
23	Zoom Technologies	Partial evidence	Hyderabad, IndiaHQ checked Sep 29, 2026	51-200	209 contacts →
	Partial evidence “Zoom Technologies offers trailblazing cybersecurity / cyberforensics / Digital Intelligence solutions and US - Council certified Cybersecurity Professional training and a lot more.” Source: RevenueBase Database · checked Sep 29, 2026
24	Afcea International	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 29, 2026	n/a	206 contacts →
	Indirect evidence “AFCEA International, established in 1946, is a non-profit organization serving its members by providing a forum for the ethical exchange of information, and dedicated to…” Source: RevenueBase Database · checked Sep 29, 2026
25	TCM Security	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 29, 2026	n/a	206 contacts →
	Partial evidence “A veteran-owned cybersecurity company focused on penetration testing, security training, and compliance.” Source: RevenueBase Database · checked Sep 29, 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: nonprofit 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 nonprofit cybersecurity companies.
Partial evidence: Its own public description names part of nonprofit cybersecurity companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name nonprofit 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 6,264 nonprofit cybersecurity companies worldwide

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Nonprofit cybersecurity companies worldwide at a glance

As of Sep 29, 2026

22.2%Verified-email coverage

10.9Average contacts per company

1-10Median size (employees)

2.0%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

3,919

11-50

1,810

51-200

377

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 nonprofit 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: Every country. Country and city lists for nonprofit cybersecurity companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “nonprofit 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 nonprofit 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 nonprofit 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, 15,185 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 on September 29, 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.

Nonprofit cybersecurity companies by location

38 lists · largest first

Every Nonprofit 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 nonprofit 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 nonprofit cybersecurity companies are there worldwide?

RevenueBase identified 6,264 nonprofit 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?

Kaspersky, headquartered in Zurich, tops this list with the largest team on record.

Which country has the most nonprofit cybersecurity companies?

The United States leads with 1,458 companies, followed by India (615) and the United Kingdom (328). Every nonprofit cybersecurity companies list by country and city is linked on this page.

Which city has the most nonprofit cybersecurity companies?

London leads with 127 headquartered companies, followed by Paris (74) and Sao Paulo (60).

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 15,185 verified decision-maker contacts tracked across these 6,264 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 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.