Company lists · Data refreshed September 2026

Top 25 Iot vulnerability assessment companies worldwide

RevenueBase identified 2,874 iot vulnerability assessment companies worldwide as of September 2026 and tracks 50,085 professional contacts across them, including 9,237 with verified work emails. The United States is the largest market and London the largest hub.

This list covers iot vulnerability assessment 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 20, 2026. Country and city lists for iot vulnerability assessment 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 20, 2026 86% judged on-target in blind review
2,874Companies
50,085Contacts tracked
9,237Verified emails
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The 25 largest iot vulnerability assessment companies worldwide

Ranked by team size
Top 25 of 2,874 iot vulnerability assessment companies worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to iot vulnerability assessment 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceUnited StatesHQ checked Sep 20, 2026n/a12,771 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 20, 2026n/a6,058 contacts →

Indirect evidence

“HackerOne is a global leader in Continuous Threat Exposure Management (CTEM) and the only solution provider that pairs the simultaneous trust of the Fortune 500 and the world's…”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 20, 2026n/a3,649 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 20, 2026
4Partial evidenceSan Jose, CA, United StatesHQ checked Sep 20, 20261,001-5,0001,181 contacts →

Partial evidence

“As AI-driven vulnerability and exploitation accelerate attack velocity to machine speed, Forescout is a foundational cyber defense layer that allows organizations to segment and…”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidenceLondon, United KingdomHQ checked Sep 20, 2026n/a705 contacts →

Partial evidence

“Get a free, powerful security assessment with personalised recommendations, the same analysis that costs from IT Consultancies.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceHanover, MD, United StatesHQ checked Sep 20, 2026501-1,000551 contacts →

Indirect evidence

“Dragos provides the most effective OT cybersecurity technology for industrial and critical infrastructure to deliver on our global mission: to safeguard civilization.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceBurlington, MA, United StatesHQ checked Sep 20, 2026201-500486 contacts →

Indirect evidence

“Pentera provides AI-powered Automated Security Validation for enterprise security teams.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceAhmedabad, IndiaHQ checked Sep 20, 2026201-500340 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 20, 2026
9Indirect evidenceMumbai, IndiaHQ checked Sep 20, 2026201-500335 contacts →

Indirect evidence

“T A L A K U N C H I Networks Pvt.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceAlbuquerque, NM, United StatesHQ checked Sep 20, 2026201-500244 contacts →

Indirect evidence

“Securin is obsessed with helping leaders continuously improve their security posture.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceRedwood City, CA, United StatesHQ checked Sep 20, 2026201-500237 contacts →

Indirect 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 20, 2026
12Indirect evidenceSao Paulo, BrazilHQ checked Sep 20, 2026201-500230 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 20, 2026
13Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 20, 202651-200208 contacts →

Partial 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 20, 2026
14Indirect evidenceParis, FranceHQ checked Sep 20, 2026n/a197 contacts →

Indirect evidence

“Yogosha is an Offensive Security Testing Platform that allows companies and governments to raise their security posture.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceAthens, GreeceHQ checked Sep 20, 202651-200194 contacts →

Indirect evidence

“CENSUS is a cybersecurity engineering powerhouse.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceNoida, IndiaHQ checked Sep 20, 2026201-500181 contacts →

Indirect evidence

“SDAD Technology Pvt.Ltd.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceParis, FranceHQ checked Sep 20, 2026201-500171 contacts →

Indirect evidence

“Synacktiv is an offensive security company founded in 2012 by several security experts.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceHouston, TX, United StatesHQ checked Sep 20, 202651-200167 contacts →

Indirect evidence

“ValueMentor is a global information security consulting & services company that delivers real results to global business in maximizing cybersecurity.”

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 20, 202651-200167 contacts →

Partial evidence

“Fluid Attacks helps companies prevent, detect, manage and remediate vulnerabilities across their application attack surface.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidencePune, IndiaHQ checked Sep 20, 202651-200156 contacts →

Indirect evidence

“At Payatu we believe in following one’s passion and with that thought, we have created a world class team of researchers and executors who are bending the rules to provide state…”

Source: RevenueBase Database · checked Sep 20, 2026
21Partial evidenceGhent, BelgiumHQ checked Sep 20, 2026201-500154 contacts →

Partial evidence

“From vulnerability management to penetration testing, secure everything you build, host, and run with Aikido.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceMenlo Park, CA, United StatesHQ checked Sep 20, 202651-200154 contacts →

Indirect evidence

“RedSeal is an agentless, AI enabled exposure management platform for hybrid and remote infrastructure.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidencePune, IndiaHQ checked Sep 20, 202651-200149 contacts →

Indirect evidence

“SecureLayer7 is a CREST accredited advanced offensive security solutions provider, combining deep expertise with innovative products to protect modern digital enterprises.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceLos Altos, CA, United StatesHQ checked Sep 20, 202651-200149 contacts →

Indirect evidence

“AttackIQ® is trusted by top organizations worldwide to validate security controls in real time.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceDubai, United Arab EmiratesHQ checked Sep 20, 202651-200147 contacts →

Indirect evidence

“RNS Technology Services, which has grown massively in the UAE, Qatar, Saudi, Singapore, Malaysia & India, is an international award-winning cybersecurity Value-Added Reseller and…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 2,874 iot vulnerability assessment companies worldwide

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Iot vulnerability assessment companies worldwide at a glance

As of Sep 20, 2026
18.4%Verified-email coverage
17.4Average contacts per company
1-10Median size (employees)
2.3%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
1,726
11-50
903
51-200
193
201-500
36
501-1,000
6
1,001-5,000
4
10001+
2

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 iot vulnerability assessment 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 iot vulnerability assessment companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “iot vulnerability assessment 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 iot vulnerability assessment 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 iot vulnerability assessment 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, 9,237 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 20, 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.

Iot vulnerability assessment companies by location

15 lists · largest first

Every Iot vulnerability assessment 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 iot vulnerability assessment 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 iot vulnerability assessment companies are there worldwide?

RevenueBase identified 2,874 iot vulnerability assessment 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?

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

Which country has the most iot vulnerability assessment companies?

The United States leads with 626 companies, followed by India (374) and the United Kingdom (160). Every iot vulnerability assessment companies list by country and city is linked on this page.

Which city has the most iot vulnerability assessment companies?

London leads with 65 headquartered companies, followed by Hyderabad (36) and Pune (30).

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 9,237 verified decision-maker contacts tracked across these 2,874 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 20, 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.