Company lists · Data refreshed September 2026

Top 25 Application security firms worldwide

Name: Application security firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 12,087 companies tracked

RevenueBase identified 12,087 application security firms worldwide as of September 2026 and tracks 191,432 professional contacts across them, including 66,559 with verified work emails. The United States is the largest market and London the largest hub.

This list covers application security firms 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 27, 2026. Country and city lists for application security firms 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 27, 2026 86% judged on-target in blind review

12,087Companies

191,432Contacts tracked

66,559Verified emails

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The 25 largest application security firms worldwide

Ranked by team size

Top 25 of 12,087 application security firms worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to application security firms: 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	Palo Alto Networks	Indirect evidence	Santa Clara, CA, United StatesHQ checked Sep 27, 2026	10001+	18,431 contacts →
	Indirect 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 27, 2026
2	Fortinet	Indirect evidence	Sunnyvale, CA, United StatesHQ checked Sep 27, 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 27, 2026
3	Private Sector	Indirect evidence	United StatesHQ checked Sep 27, 2026	n/a	12,771 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
4	OPTIV	Indirect evidence	Leawood, KS, United StatesHQ checked Sep 27, 2026	1,001-5,000	2,222 contacts →
	Indirect evidence “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Source: RevenueBase Database · checked Sep 27, 2026
5	Site سايت	Indirect evidence	Al Nakheel, Saudi ArabiaHQ checked Sep 27, 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 27, 2026
6	Thales Cybersecurity Products	Partial evidence	Austin, TX, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,252 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 27, 2026
7	Guidepoint Security	Partial evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,232 contacts →
	Partial evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 27, 2026
8	Imperva	Indirect evidence	Austin, TX, United StatesHQ checked Sep 27, 2026	10001+	1,217 contacts →
	Indirect evidence “On Dec.” Source: RevenueBase Database · checked Sep 27, 2026
9	SNYK	Indirect evidence	Boston, MA, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,188 contacts →
	Indirect evidence “Snyk, the leader in secure AI software development, empowers organizations to build fast and stay secure by unleashing developer productivity and reducing business risk.” Source: RevenueBase Database · checked Sep 27, 2026
10	Checkmarx	Partial evidence	Paramus, NJ, United StatesHQ checked Sep 27, 2026	501-1,000	1,042 contacts →
	Partial evidence “Checkmarx helps the world’s largest enterprises get ahead of application risk without slowing down development.” Source: RevenueBase Database · checked Sep 27, 2026
11	Irdeto	Indirect evidence	Hoofddorp, NetherlandsHQ checked Sep 27, 2026	1,001-5,000	1,026 contacts →
	Indirect evidence “Irdeto, a CANAL+ company, is the world leader in digital platform cybersecurity, empowering businesses to innovate for a secure, connected future.” Source: RevenueBase Database · checked Sep 27, 2026
12	Coalfire	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1,001-5,000	947 contacts →
	Indirect evidence “Coalfire is the premier Cybersecurity and Compliance Services leader for the tech, healthcare, and finance industries.(This page is maintained by Marketing.” Source: RevenueBase Database · checked Sep 27, 2026
13	Ensign Infosecurity	Indirect evidence	SingaporeHQ checked Sep 27, 2026	501-1,000	888 contacts →
	Indirect evidence “Ensign InfoSecurity is the largest pure-play end-to-end cybersecurity service provider in Asia.” Source: RevenueBase Database · checked Sep 27, 2026
14	Trustwave, A Levelblue Company	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	501-1,000	874 contacts →
	Indirect 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 27, 2026
15	Cyderes	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 27, 2026	1,001-5,000	844 contacts →
	Indirect evidence “Today’s threatscape is relentless.” Source: RevenueBase Database · checked Sep 27, 2026
16	Softcell Technologies Global Pvt. LTD	Partial evidence	Mumbai, IndiaHQ checked Sep 27, 2026	501-1,000	763 contacts →
	Partial evidence “With 35 years of experience, Softcell Technologies Global is a trusted IT services provider specialising in (i) IT security and cybersecurity solutions,(ii) cloud / on-premise…” Source: RevenueBase Database · checked Sep 27, 2026
17	SISA	Partial evidence	Bengaluru, IndiaHQ checked Sep 27, 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 27, 2026
18	Network Intelligence	Partial evidence	Plano, TX, United StatesHQ checked Sep 27, 2026	501-1,000	641 contacts →
	Partial evidence “At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.” Source: RevenueBase Database · checked Sep 27, 2026
19	I-Tracing	Indirect evidence	Courbevoie, FranceHQ checked Sep 27, 2026	1,001-5,000	639 contacts →
	Indirect evidence “I-TRACING, pure player and cybersecurity service provider leader in France, supports over 600 clients around the world in managing their cyber risks, from anticipating threats to…” Source: RevenueBase Database · checked Sep 27, 2026
20	Telos Corporation	Partial evidence	Ashburn, VA, United StatesHQ checked Sep 27, 2026	501-1,000	629 contacts →
	Partial 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 27, 2026
21	Vikingcloud	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1,001-5,000	628 contacts →
	Indirect evidence “VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Source: RevenueBase Database · checked Sep 27, 2026
22	Omegapoint	Indirect evidence	Stockholm, SwedenHQ checked Sep 27, 2026	501-1,000	619 contacts →
	Indirect evidence “Omegapoint hjälper dig att utveckla och cybersäkra din digitala verksamhet.” Source: RevenueBase Database · checked Sep 27, 2026
23	Veracode	Partial evidence	Burlington, MA, United StatesHQ checked Sep 27, 2026	501-1,000	552 contacts →
	Partial evidence “Veracode is a global leader in Application Risk Management for the AI era.” Source: RevenueBase Database · checked Sep 27, 2026
24	Paramount Computer Systems	Indirect evidence	Dubai, United Arab EmiratesHQ checked Sep 27, 2026	201-500	525 contacts →
	Indirect evidence “Protection is Paramount!” Source: RevenueBase Database · checked Sep 27, 2026
25	Ultraviolet Cyber	Partial evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	501-1,000	523 contacts →
	Partial 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 27, 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: application security firms. 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 application security firms.
Partial evidence: Its own public description names part of application security firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name application security firms. 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 12,087 application security firms worldwide

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Application security firms worldwide at a glance

As of Sep 27, 2026

34.8%Verified-email coverage

15.8Average contacts per company

1-10Median size (employees)

2.3%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

6,806

11-50

4,015

51-200

918

201-500

223

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 application security firms, 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 application security firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “application security firms”. 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 application security firms), 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 application security firms, 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, 66,559 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 27, 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.

Application security firms by location

74 lists · largest first

Every Application security firms 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 application security firms, 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 application security firms are there worldwide?

RevenueBase identified 12,087 application security firms 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?

Palo Alto Networks, headquartered in Santa Clara, tops this list with the largest team on record.

Which country has the most application security firms?

The United States leads with 2,575 companies, followed by India (1,366) and the United Kingdom (688). Every application security firms list by country and city is linked on this page.

Which city has the most application security firms?

London leads with 278 headquartered companies, followed by Sao Paulo (124) and Dubai (122).

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 66,559 verified decision-maker contacts tracked across these 12,087 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 27, 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.