Company lists · Data refreshed September 2026

Top 25 Cybersecurity risk consultancies worldwide

RevenueBase identified 30,389 cybersecurity risk consultancies worldwide as of September 2026 and tracks 425,745 professional contacts across them, including 138,855 with verified work emails. The United States is the largest market and London the largest hub.

This list covers cybersecurity risk consultancies 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 28, 2026. Country and city lists for cybersecurity risk consultancies 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 28, 2026 86% judged on-target in blind review
30,389Companies
425,745Contacts tracked
138,855Verified emails
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The 25 largest cybersecurity risk consultancies worldwide

Ranked by team size
Top 25 of 30,389 cybersecurity risk consultancies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity risk consultancies: 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 evidenceSunnyvale, CA, United StatesHQ checked Sep 28, 202610001+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 28, 2026
2Indirect evidenceUnited StatesHQ checked Sep 28, 2026n/a12,771 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceSan Jose, CA, United StatesHQ checked Sep 28, 202610001+11,169 contacts →

Partial evidence

“Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceAbingdon, United KingdomHQ checked Sep 28, 20265,001-10,0004,925 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceNanterre, FranceHQ checked Sep 28, 20261,001-5,0003,673 contacts →

Partial evidence

“Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 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 28, 2026
7Partial evidencePlano, TX, United StatesHQ checked Sep 28, 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 28, 2026
8Indirect evidenceEden Prairie, MN, United StatesHQ checked Sep 28, 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 28, 2026
9Indirect evidenceChiyoda-ku, JapanHQ checked Sep 28, 202610001+2,979 contacts →

Indirect evidence

“We align our goals with our clients’ goals – a true partnership that ensures shared success.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,0002,972 contacts →

Partial evidence

“Control Risks is a global specialist risk consultancy that helps to create secure, compliant and resilient organisations.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceBoston, MA, United StatesHQ checked Sep 28, 20261,001-5,0002,822 contacts →

Partial 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 28, 2026
12Indirect evidenceBirmingham, United KingdomHQ checked Sep 28, 20265,001-10,0002,747 contacts →

Indirect evidence

“Welcome to LRQA.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceClearwater, FL, United StatesHQ checked Sep 28, 20261,001-5,0002,367 contacts →

Indirect evidence

“KnowBe4 empowers the modern workforce to make smarter security decisions every day.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,0002,304 contacts →

Indirect evidence

“organizations.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceLeawood, KS, United StatesHQ checked Sep 28, 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 28, 2026
16Partial evidenceColumbia, MD, United StatesHQ checked Sep 28, 20261,001-5,0002,173 contacts →

Partial evidence

“Tenable is the exposure management company, exposing and closing the cybersecurity gaps that erode business value, reputation and trust.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceBucuresti, RomaniaHQ checked Sep 28, 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 28, 2026
18Partial evidenceCampbell, CA, United StatesHQ checked Sep 28, 20261,001-5,0002,157 contacts →

Partial evidence

“Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceMumbai, IndiaHQ checked Sep 28, 20261,001-5,0001,773 contacts →

Partial evidence

“Inspira Enterprise is a global Cybersecurity & Data Analytics & AI services provider with a presence in North America, ASEAN, Middle East, India, and Africa regions.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceEden Prairie, MN, United StatesHQ checked Sep 28, 20261,001-5,0001,648 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceBlagnac, FranceHQ checked Sep 28, 20261,001-5,0001,431 contacts →

Partial evidence

“Airbus Protect is an Airbus subsidiary bringing together expertise in cybersecurity, safety and sustainability-related services.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceAl Nakheel, Saudi ArabiaHQ checked Sep 28, 2026501-1,0001,378 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 28, 2026
23Indirect evidenceDubai, United Arab EmiratesHQ checked Sep 28, 20265,001-10,0001,374 contacts →

Indirect evidence

“First Security Group LLC was founded in 2004 with the vision of His Highness, the Vice President, Prime Minister, and Ruler of Dubai, Sheikh Mohamed bin Rashid Al Maktoum.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceAustin, TX, United StatesHQ checked Sep 28, 20261,001-5,0001,252 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 28, 2026
25Strong evidenceReston, VA, United StatesHQ checked Sep 28, 20261,001-5,0001,232 contacts →

Strong evidence

“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 30,389 cybersecurity risk consultancies worldwide

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Cybersecurity risk consultancies worldwide at a glance

As of Sep 28, 2026
32.6%Verified-email coverage
14.0Average contacts per company
1-10Median size (employees)
3.0%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
18,120
11-50
9,114
51-200
2,289
201-500
491
501-1,000
155
1,001-5,000
125
5,001-10,000
25
10001+
32

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 cybersecurity risk consultancies, 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 cybersecurity risk consultancies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “cybersecurity risk consultancies”. 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 cybersecurity risk consultancies), 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 cybersecurity risk consultancies, 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, 138,855 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 28, 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.

Cybersecurity risk consultancies by location

200 lists · largest first

Every Cybersecurity risk consultancies 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 cybersecurity risk consultancies, 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 cybersecurity risk consultancies are there worldwide?

RevenueBase identified 30,389 cybersecurity risk consultancies 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?

Fortinet, headquartered in Sunnyvale, tops this list with the largest team on record.

Which country has the most cybersecurity risk consultancies?

The United States leads with 7,624 companies, followed by the United Kingdom (2,173) and India (2,015). Every cybersecurity risk consultancies list by country and city is linked on this page.

Which city has the most cybersecurity risk consultancies?

London leads with 913 headquartered companies, followed by Paris (360) and Sao Paulo (305).

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 138,855 verified decision-maker contacts tracked across these 30,389 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 28, 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.