Company lists · Data refreshed August 2026

Top 25 Application security testing companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 3,315 companies tracked

RevenueBase identified 3,315 application security testing companies worldwide as of August 2026 and tracks 47,319 professional contacts across them, including 15,402 with verified work emails and 1 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers application security testing 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 August 31, 2026. Country and city lists for application security testing 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 Aug 31, 2026 86% judged on-target in blind review

3,315Companies

47,319Contacts tracked

15,402Verified emails

1Mobile numbers

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The 25 largest application security testing companies worldwide

Ranked by team size

Top 25 of 3,315 application security testing companies worldwide, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to application security testing 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	AQM Technologies	Indirect evidence	Mumbai, IndiaHQ checked Aug 31, 2026	1,001-5,000	1,636 contacts →
	Indirect evidence “AQM Technologies Pvt.” Source: RevenueBase Database · checked Aug 31, 2026
2	Guidepoint Security	Partial evidence	Reston, VA, United StatesHQ checked Aug 31, 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 Aug 31, 2026
3	SNYK	Indirect evidence	Boston, MA, United StatesHQ checked Aug 31, 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 Aug 31, 2026
4	Checkmarx	Partial evidence	Paramus, NJ, United StatesHQ checked Aug 31, 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 Aug 31, 2026
5	A1qa	Partial evidence	Decatur, GA, United StatesHQ checked Aug 31, 2026	1,001-5,000	980 contacts →
	Partial evidence “a1qa is a global software testing and QA outsourcing company trusted by IT firms and Fortune 500 enterprises to deliver software quality that holds under real-world pressure.” Source: RevenueBase Database · checked Aug 31, 2026
6	Trustwave, A Levelblue Company	Indirect evidence	Chicago, IL, United StatesHQ checked Aug 31, 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 Aug 31, 2026
7	Synack RED Team	Partial evidence	Austin, TX, United StatesHQ checked Aug 31, 2026	n/a	813 contacts →
	Partial evidence “The Synack Red Team is a private freelance security research team that spans 6 continents and over 80 countries.” Source: RevenueBase Database · checked Aug 31, 2026
8	Veracode	Partial evidence	Burlington, MA, United StatesHQ checked Aug 31, 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 Aug 31, 2026
9	Pentera	Partial evidence	Burlington, MA, United StatesHQ checked Aug 31, 2026	201-500	486 contacts →
	Partial evidence “Pentera provides AI-powered Automated Security Validation for enterprise security teams.” Source: RevenueBase Database · checked Aug 31, 2026
10	Astegic	Partial evidence	Falls Church, VA, United StatesHQ checked Aug 31, 2026	51-200	415 contacts →
	Partial evidence “For 15 years, Astegic has been helping Fortune 500 through startup companies with their Testing & QA needs.” Source: RevenueBase Database · checked Aug 31, 2026
11	Word Publishing	Partial evidence	Mumbai, IndiaHQ checked Aug 31, 2026	201-500	386 contacts →
	Partial evidence “With a team comprising of the best QA minds and Certified Software Testing Specialists, we provide seamless Quality Assurance & Software testing solutions for your DESKTOP, WEB…” Source: RevenueBase Database · checked Aug 31, 2026
12	Resillion	Strong evidence	London, United KingdomHQ checked Aug 31, 2026	501-1,000	374 contacts →
	Strong evidence “At Resillion, we're more than just a global leader in quality engineering, testing, and cyber security – we're your dedicated partner from the start of your project to its…” Source: RevenueBase Database · checked Aug 31, 2026
13	Esec Forte Technologies	Partial evidence	Gurugram, IndiaHQ checked Aug 31, 2026	201-500	363 contacts →
	Partial evidence “eSec Forte® Technologies is a CMMi Level 3 certified Global Consulting and IT Security Services company with offerings across Cloud Security, Cyber Forensics, Malware Detection…” Source: RevenueBase Database · checked Aug 31, 2026
14	Cobalt	Partial evidence	San Francisco, CA, United StatesHQ checked Aug 31, 2026	201-500	350 contacts →
	Partial evidence “Cobalt is the pioneer in pentesting as a service and a leader in offensive security services.” Source: RevenueBase Database · checked Aug 31, 2026
15	Bishop FOX	Strong evidence	Tempe, AZ, United StatesHQ checked Aug 31, 2026	201-500	344 contacts →
	Strong evidence “Bishop Fox is recognized as the leading authority in offensive security, providing solutions ranging from continuous penetration testing, red teaming, and attack surface…” Source: RevenueBase Database · checked Aug 31, 2026
16	Techdefence	Partial evidence	Ahmedabad, IndiaHQ checked Aug 31, 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 Aug 31, 2026
17	Talakunchi Networks PVT LTD	Indirect evidence	Mumbai, IndiaHQ checked Aug 31, 2026	201-500	335 contacts →
	Indirect evidence “T A L A K U N C H I Networks Pvt.” Source: RevenueBase Database · checked Aug 31, 2026
18	Invicti	Partial evidence	Austin, TX, United StatesHQ checked Aug 31, 2026	201-500	326 contacts →
	Partial evidence “Invicti is transforming the way web applications are secured.” Source: RevenueBase Database · checked Aug 31, 2026
19	Nviso Security	Partial evidence	Brussels, BelgiumHQ checked Aug 31, 2026	201-500	315 contacts →
	Partial evidence “NVISO is a cyber security services firm composed of outstanding security professionals - each has a specific field of expertise, ranging from security research and risk management…” Source: RevenueBase Database · checked Aug 31, 2026
20	Prescient Security	Strong evidence	Nashville, TN, United StatesHQ checked Aug 31, 2026	201-500	272 contacts →
	Strong 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 Aug 31, 2026
21	Portswigger	Strong evidence	Knutsford, United KingdomHQ checked Aug 31, 2026	51-200	267 contacts →
	Strong evidence “PortSwigger is a global leader in the creation of software tools for security testing of web applications.” Source: RevenueBase Database · checked Aug 31, 2026
22	Securin INC	Partial evidence	Albuquerque, NM, United StatesHQ checked Aug 31, 2026	201-500	244 contacts →
	Partial evidence “Securin is obsessed with helping leaders continuously improve their security posture.” Source: RevenueBase Database · checked Aug 31, 2026
23	Oplium	Partial evidence	Sao Paulo, BrazilHQ checked Aug 31, 2026	201-500	230 contacts →
	Partial evidence “We are a young company, founded in 2019 in Brazil, with the aim of bringing an innovative approach to the information security market, with state-of-the-art proprietary and…” Source: RevenueBase Database · checked Aug 31, 2026
24	Loginsoft	Indirect evidence	Chantilly, VA, United StatesHQ checked Aug 31, 2026	201-500	220 contacts →
	Indirect evidence “For over 20 years, leading companies in Telecom, Cybersecurity, Healthcare, Banking, New Media, and more have come to rely on Loginsoft as a trusted resource for technology talent.” Source: RevenueBase Database · checked Aug 31, 2026
25	TCM Security	Strong evidence	Charlotte, NC, United StatesHQ checked Aug 31, 2026	n/a	206 contacts →
	Strong evidence “A veteran-owned cybersecurity company focused on penetration testing, security training, and compliance.” Source: RevenueBase Database · checked Aug 31, 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 testing 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 application security testing companies.
Partial evidence: Its own public description names part of application security testing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name application security testing 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 3,315 application security testing companies worldwide

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Application security testing companies worldwide at a glance

As of Aug 31, 2026

32.5%Verified-email coverage

0.0%Mobile-number coverage

14.3Average contacts per company

1-10Median size (employees)

3.5%Largest-city concentration · London

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

1,855

11-50

1,121

51-200

243

201-500

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 application security testing 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: 23 countries, largest first: the United States, India, the United Kingdom, Germany, Brazil, France, Canada, the Netherlands, Australia, Türkiye and 13 more. Country and city lists for application security testing companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “application security testing 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 application security testing 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 application security testing 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, 15,402 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 August 31, 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.

Application security testing companies by location

36 lists · largest first

Every Application security testing 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 application security testing 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 application security testing companies are there worldwide?

RevenueBase identified 3,315 application security testing companies worldwide as of August 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?

AQM Technologies, headquartered in Ghatkopar West Mumbai, tops this list with the largest team on record.

Which country has the most application security testing companies?

The United States leads with 972 companies, followed by India (655) and the United Kingdom (311). Every application security testing companies list by country and city is linked on this page.

Which city has the most application security testing companies?

London leads with 116 headquartered companies, followed by Pune (58) and Hyderabad (52).

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 15,402 verified decision-maker contacts tracked across these 3,315 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 August 31, 2026 and September 14, 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.