Company lists · Data refreshed September 2026

Top 25 Threat intelligence service providers worldwide

RevenueBase identified 9,758 threat intelligence service providers worldwide as of September 2026 and tracks 186,424 professional contacts across them, including 63,520 with verified work emails. The United States is the largest market and London the largest hub.

This list covers threat intelligence service providers 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 22, 2026. Country and city lists for threat intelligence service providers 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 22, 2026 86% judged on-target in blind review
9,758Companies
186,424Contacts tracked
63,520Verified emails
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The 25 largest threat intelligence service providers worldwide

Ranked by team size
Top 25 of 9,758 threat intelligence service providers worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to threat intelligence service providers: 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 22, 2026n/a12,771 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceYoyogi, JapanHQ checked Sep 22, 20265,001-10,0004,942 contacts →

Indirect evidence

“We’re a global cybersecurity leader, helping to make the world safe for exchanging digital information.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceAbingdon, United KingdomHQ checked Sep 22, 20265,001-10,0004,925 contacts →

Indirect evidence

“Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.”

Source: RevenueBase Database · checked Sep 22, 2026
4Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 22, 2026n/a3,649 contacts →

Partial 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 22, 2026
5Partial evidencePlano, TX, United StatesHQ checked Sep 22, 20261,001-5,0003,447 contacts →

Partial evidence

“Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceEden Prairie, MN, United StatesHQ checked Sep 22, 20261,001-5,0003,145 contacts →

Indirect evidence

“Every year new technologies, vendors, and solutions emerge-yet despite this constant innovation, high-profile breaches are all over the headlines.”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceMountain View, CA, United StatesHQ checked Sep 22, 20261,001-5,0003,052 contacts →

Indirect evidence

“SentinelOne is the world's leading AI-powered cybersecurity platform.”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceBoston, MA, United StatesHQ checked Sep 22, 20261,001-5,0002,822 contacts →

Indirect evidence

“Rapid7, Inc.(NASDAQ: RPD) is a global leader in AI-powered managed cybersecurity operations, trusted to advance organizations’ cyber resilience.”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceLeawood, KS, United StatesHQ checked Sep 22, 20261,001-5,0002,222 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 22, 2026
10Partial evidenceBucuresti, RomaniaHQ checked Sep 22, 20261,001-5,0002,172 contacts →

Partial evidence

“Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.”

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceEden Prairie, MN, United StatesHQ checked Sep 22, 20261,001-5,0001,648 contacts →

Indirect evidence

“Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.”

Source: RevenueBase Database · checked Sep 22, 2026
12Indirect evidenceTampa, FL, United StatesHQ checked Sep 22, 20261,001-5,0001,285 contacts →

Indirect evidence

“ReliaQuest exists to Make Security Possible.”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceAustin, TX, United StatesHQ checked Sep 22, 20261,001-5,0001,252 contacts →

Indirect 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 22, 2026
14Indirect evidenceReston, VA, United StatesHQ checked Sep 22, 20261,001-5,0001,232 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 22, 2026
15Indirect evidenceAustin, TX, United StatesHQ checked Sep 22, 202610001+1,217 contacts →

Indirect evidence

“On Dec.”

Source: RevenueBase Database · checked Sep 22, 2026
16Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 22, 20261,001-5,0001,181 contacts →

Indirect 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 22, 2026
17Indirect evidenceBoston, MA, United StatesHQ checked Sep 22, 2026501-1,0001,030 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
18Partial evidenceBaltimore, MD, United StatesHQ checked Sep 22, 2026501-1,000904 contacts →

Partial evidence

“ZeroFox is the solution to discover, validate, and disrupt external cyber threats before they harm revenue or reputation.”

Source: RevenueBase Database · checked Sep 22, 2026
19Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 22, 2026501-1,000889 contacts →

Indirect evidence

“Netenrich is redefining security operations by shifting the focus from "efficiency"(speed) to "efficacy"(comprehensive coverage).”

Source: RevenueBase Database · checked Sep 22, 2026
20Partial evidenceBroomfield, CO, United StatesHQ checked Sep 22, 2026501-1,000876 contacts →

Partial evidence

“Exabeam is the leader in Behavior Intelligence for the agentic enterprise.”

Source: RevenueBase Database · checked Sep 22, 2026
21Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 2026501-1,000874 contacts →

Partial 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 22, 2026
22Partial evidenceHod-hasharon, IsraelHQ checked Sep 22, 2026501-1,000856 contacts →

Partial evidence

“Allot Ltd.(NASDAQ: ALLT, TASE: ALLT) is a provider of leading innovative converged cybersecurity solutions and network intelligence for service providers and enterprises…”

Source: RevenueBase Database · checked Sep 22, 2026
23Partial evidenceKansas City, MO, United StatesHQ checked Sep 22, 20261,001-5,000844 contacts →

Partial evidence

“Today’s threatscape is relentless.”

Source: RevenueBase Database · checked Sep 22, 2026
24Partial evidenceBoston, MA, United StatesHQ checked Sep 22, 2026501-1,000752 contacts →

Partial evidence

“Bitsight is the global leader in cyber risk intelligence, leveraging advanced AI to empower organizations with precise insights derived from the industry’s most extensive external…”

Source: RevenueBase Database · checked Sep 22, 2026
25Indirect evidenceBengaluru, IndiaHQ checked Sep 22, 2026201-500743 contacts →

Indirect 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 22, 2026

Showing 25 of 9,758 threat intelligence service providers worldwide

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Threat intelligence service providers worldwide at a glance

As of Sep 22, 2026
34.1%Verified-email coverage
19.1Average contacts per company
1-10Median size (employees)
3.0%Largest-city concentration · London
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
5,017
11-50
3,356
51-200
974
201-500
218
501-1,000
78
1,001-5,000
73
5,001-10,000
18
10001+
17

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 threat intelligence service providers, 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 threat intelligence service providers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “threat intelligence service providers”. 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 threat intelligence service providers), 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 threat intelligence service providers, 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, 63,520 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 22, 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.

Threat intelligence service providers by location

64 lists · largest first

Every Threat intelligence service providers 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 threat intelligence service providers, 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 threat intelligence service providers are there worldwide?

RevenueBase identified 9,758 threat intelligence service providers 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 threat intelligence service providers?

The United States leads with 2,559 companies, followed by India (782) and the United Kingdom (614). Every threat intelligence service providers list by country and city is linked on this page.

Which city has the most threat intelligence service providers?

London leads with 291 headquartered companies, followed by Dubai (109) and Sao Paulo (96).

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 63,520 verified decision-maker contacts tracked across these 9,758 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 22, 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.