Company lists · Data refreshed September 2026

Top 25 Cloud penetration testing firms worldwide

Name: Cloud penetration testing firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 4,930 companies tracked

RevenueBase identified 4,930 cloud penetration testing firms worldwide as of September 2026 and tracks 66,776 professional contacts across them, including 18,618 with verified work emails. The United States is the largest market and London the largest hub.

This list covers cloud penetration testing 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 cloud penetration testing 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

4,930Companies

66,776Contacts tracked

18,618Verified emails

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The 25 largest cloud penetration testing firms worldwide

Ranked by team size

Top 25 of 4,930 cloud penetration testing firms worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to cloud penetration testing 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	Private Sector	Indirect evidence	United StatesHQ checked Sep 27, 2026	n/a	12,771 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
2	Qualys	Partial evidence	Foster City, CA, United StatesHQ checked Sep 27, 2026	1,001-5,000	3,058 contacts →
	Partial evidence “Qualys, Inc.(NASDAQ: QLYS) is a leading provider of disruptive cloud-based security, compliance and IT solutions with more than subscription customers worldwide, including a…” Source: RevenueBase Database · checked Sep 27, 2026
3	WIZ	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	1,001-5,000	2,559 contacts →
	Partial evidence “Wiz, now part of Google Cloud, protects everything you build and run.” Source: RevenueBase Database · checked Sep 27, 2026
4	Guidepoint Security	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,232 contacts →
	Indirect 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
5	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
6	Orca Security	Partial evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	201-500	449 contacts →
	Partial evidence “Orca Security is the pioneer of agentless cloud security, and is trusted by hundreds of enterprises globally.” Source: RevenueBase Database · checked Sep 27, 2026
7	Safeway	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 27, 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 27, 2026
8	Acpl Systems	Indirect evidence	Gurgaon, IndiaHQ checked Sep 27, 2026	201-500	398 contacts →
	Indirect evidence “ACPL Systems is a pure-play cybersecurity services company focused on helping organisations translate security investments into measurable outcomes.” Source: RevenueBase Database · checked Sep 27, 2026
9	IBN Technologies	Partial evidence	Miami, FL, United StatesHQ checked Sep 27, 2026	51-200	365 contacts →
	Partial evidence “Welcome to IBN Technologies, LLC, Your Trusted Partner in Cybersecurity, Cloud, and Finance Solutions With 26+ years of expertise, IBN Technologies leads in delivering integrated…” Source: RevenueBase Database · checked Sep 27, 2026
10	Esec Forte Technologies	Partial evidence	Gurugram, IndiaHQ checked Sep 27, 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 Sep 27, 2026
11	Cobalt	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	201-500	350 contacts →
	Indirect evidence “Cobalt is the pioneer in pentesting as a service and a leader in offensive security services.” Source: RevenueBase Database · checked Sep 27, 2026
12	Bishop FOX	Strong evidence	Tempe, AZ, United StatesHQ checked Sep 27, 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 Sep 27, 2026
13	Techdefence	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 27, 2026	201-500	340 contacts →
	Indirect 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 27, 2026
14	Talakunchi Networks PVT LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 27, 2026	201-500	335 contacts →
	Indirect evidence “T A L A K U N C H I Networks Pvt.” Source: RevenueBase Database · checked Sep 27, 2026
15	Nviso Security	Indirect evidence	Brussels, BelgiumHQ checked Sep 27, 2026	201-500	315 contacts →
	Indirect 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 Sep 27, 2026
16	Prescient Security	Strong evidence	Nashville, TN, United StatesHQ checked Sep 27, 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 Sep 27, 2026
17	Baxter Clewis Cybersecurity	Indirect evidence	Cedar Hill, TX, United StatesHQ checked Sep 27, 2026	201-500	255 contacts →
	Indirect evidence “Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.” Source: RevenueBase Database · checked Sep 27, 2026
18	Securin INC	Indirect evidence	Albuquerque, NM, United StatesHQ checked Sep 27, 2026	201-500	244 contacts →
	Indirect evidence “Securin is obsessed with helping leaders continuously improve their security posture.” Source: RevenueBase Database · checked Sep 27, 2026
19	Synack	Strong evidence	Redwood City, CA, United StatesHQ checked Sep 27, 2026	201-500	237 contacts →
	Strong evidence “Synack is the leader in human-led and agentic AI-powered Penetration Testing as a Service (PTaaS), transforming offensive security to help organizations proactively reduce risk…” Source: RevenueBase Database · checked Sep 27, 2026
20	Oplium	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 27, 2026	201-500	230 contacts →
	Indirect 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 Sep 27, 2026
21	Cyraacs	Indirect evidence	Bengaluru, IndiaHQ checked Sep 27, 2026	51-200	221 contacts →
	Indirect evidence “CYRAAC Services Private Limited (CyRAACS) is a leading, technology-first cybersecurity consulting and advisory firm headquartered in India, empanelled with CERT-In and accredited…” Source: RevenueBase Database · checked Sep 27, 2026
22	Loginsoft	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 27, 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 Sep 27, 2026
23	Netdata Cybersecurity	Indirect evidence	Bogotá, ColombiaHQ checked Sep 27, 2026	201-500	210 contacts →
	Indirect evidence “Netdata is a leading global cybersecurity services partner with more than 200 certified engineers and over 1,500 certifications, widely recognized as a partner of Palo Alto…” Source: RevenueBase Database · checked Sep 27, 2026
24	TAC Security	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	51-200	208 contacts →
	Indirect evidence “TAC Security (NSE: TAC) TAC Security, a leading publicly listed global cybersecurity company specializing in vulnerability management, today serves clients across 100 countries…” Source: RevenueBase Database · checked Sep 27, 2026
25	Secure Network Solutions India Private Limited	Indirect evidence	Chennai, IndiaHQ checked Sep 27, 2026	201-500	205 contacts →
	Indirect evidence “Since we've been the 'Doctors of Network Security' for Indian enterprises, diagnosing vulnerabilities, prescribing the right solutions, and standing by our customers 24x7.” 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: cloud penetration testing 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 cloud penetration testing firms.
Partial evidence: Its own public description names part of cloud penetration testing firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cloud penetration testing 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 4,930 cloud penetration testing firms worldwide

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Cloud penetration testing firms worldwide at a glance

As of Sep 27, 2026

27.9%Verified-email coverage

13.5Average contacts per company

1-10Median size (employees)

2.1%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

2,926

11-50

1,586

51-200

316

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 cloud penetration testing 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 cloud penetration testing firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “cloud penetration testing 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 cloud penetration testing 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 cloud penetration testing 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, 18,618 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.

Cloud penetration testing firms by location

34 lists · largest first

Every Cloud penetration testing 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 cloud penetration testing 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 cloud penetration testing firms are there worldwide?

RevenueBase identified 4,930 cloud penetration testing 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?

Private Sector, headquartered in Worldwide, tops this list with the largest team on record.

Which country has the most cloud penetration testing firms?

The United States leads with 1,145 companies, followed by India (574) and the United Kingdom (311). Every cloud penetration testing firms list by country and city is linked on this page.

Which city has the most cloud penetration testing firms?

London leads with 104 headquartered companies, followed by Sao Paulo (50) and Toronto (50).

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 18,618 verified decision-maker contacts tracked across these 4,930 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.