Company lists · Data refreshed November 2026

Top 25 Iso 27001 information security consultants worldwide

RevenueBase identified 7,521 company matches for iso 27001 information security consultants worldwide as of November 2026 and tracks 70,284 professional contacts across them, including 15,861 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for iso 27001 information security consultants worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026. Country and city lists for iso 27001 information security consultants follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
7,521Companies
70,284Contacts tracked
15,861Verified emails
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The 25 largest iso 27001 information security consultants worldwide

Ranked by team size
Top 25 of 7,521 company matches for iso 27001 information security consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchUnited StatesHQ recorded Nov 5, 2026n/a13,149 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchNavi Mumbai, IndiaHQ recorded Nov 5, 2026201-500423 contacts →

Exact match

“qSEAp is a CERT-IN empanelled, ISO 27001, SOC-2 Type2 and ISO 9001 certified Infosec organization founded in 2011 with a mission to deliver quality products, superior solutions…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchMontreal, QC, CanadaHQ recorded Nov 5, 202651-200406 contacts →

Exact match

“PECB is a global leader in certification, committed to fostering digital trust through education, certification, and certificate programs across various disciplines.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchGurgaon, IndiaHQ recorded Nov 5, 2026201-500385 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchCoburg, AustraliaHQ recorded Nov 5, 2026501-1,000383 contacts →

Exact match

“We are an Australian-owned, full-service managed ICT solutions and cyber security provider with a sovereign team of 500+ across Australia & New Zealand.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchParis, FranceHQ recorded Nov 5, 2026201-500370 contacts →

Exact match

“Founded in 2010, Synetis is the leading independent French consultancy firm specialising in information systems security (ISS).”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchMumbai, IndiaHQ recorded Nov 5, 2026201-500355 contacts →

Exact match

“T A L A K U N C H I Networks Pvt.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchNew Delhi, IndiaHQ recorded Nov 5, 2026501-1,000277 contacts →

Exact match

“OUR STORY WHO WE ARE Craw Security is a Training and Consulting Company with high industry training and consulting Standards.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchLeeds, United KingdomHQ recorded Nov 5, 2026201-500257 contacts →

Exact match

“We are a global boutique, specializing exclusively in the convergence of identity-driven security and networking.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchCedar Hill, TX, United StatesHQ recorded Nov 5, 2026201-500243 contacts →

Exact match

“Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchМосква, RussiaHQ recorded Nov 5, 2026501-1,000242 contacts →

Exact match

“Russia's leading IS system integrator ZAO NIP Informzaschita (CJSC Scientific Research Enterprise Information Security (Infosec)) focuses on ensuring the information security (IS)…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Nov 5, 2026n/a222 contacts →

Exact match

“IT support for businesses in London.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchIrvine, VA, United StatesHQ recorded Nov 5, 2026201-500213 contacts →

Exact match

“Founded in 2003, Tevora is a specialized management consultancy focused on cybersecurity, risk, and compliance services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchSao Paulo, BrazilHQ recorded Nov 5, 202651-200211 contacts →

Exact match

“O nosso trabalho é proteger o seu.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchAl Khobar, Saudi ArabiaHQ recorded Nov 5, 202651-200207 contacts →

Exact match

“Founded in 1997, GulfNet Solutions Company Limited is known under the brand, GNS.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchCork - London - New York City - Bucharest - Krakow - Belfast, IrelandHQ recorded Nov 5, 202651-200206 contacts →

Exact match

“At Smarttech247 we help global companies defend against cyber crime and protect their operations.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchTampa, United StatesHQ recorded Nov 5, 2026201-500201 contacts →

Exact match

“Insight Assurance is a security and compliance firm trusted by more than 1,500 organizations for their SOC 1, SOC 2, SOC 3, PCI DSS, ISO 27001, ISO 27017/27018, ISO 27701, ISO…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchTel Aviv, IsraelHQ recorded Nov 5, 202651-200198 contacts →

Exact match

“2Bsecure Ltd.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchBella Vista, AustraliaHQ recorded Nov 5, 202651-200196 contacts →

Exact match

“Ensuring your business is handling cyber security risks effectively has never been more important.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchChantilly, United StatesHQ recorded Nov 5, 20261,001-5,000194 contacts →

Exact match

“Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchKatowice, PolandHQ recorded Nov 5, 2026201-500193 contacts →

Exact match

“DAGMA Bezpieczeństwo IT to firma z 40-letnim doświadczeniem, specjalizująca się w cyberbezpieczeństwie.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchMadrid, SpainHQ recorded Nov 5, 202651-200191 contacts →

Exact match

“Expertos en Ciberseguridad, Privacidad, GRC, IRM y Cumplimiento Normativo unificando la perspectiva Legal y Tecnológica GOVERTIS es la mayor firma de Advisory 100% especializada…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchNavi Mumbai, IndiaHQ recorded Nov 5, 202651-200190 contacts →

Exact match

“QRC Assurance and Solutions has been a forerunner on the cybersecurity front, empanelled with CERT-in, certified to provide PCI DSS QSA, PA QSA, PCI 3DS, PCI SSF, ISO 27001, ISO…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchBangalore, IndiaHQ recorded Nov 5, 2026201-500190 contacts →

Exact match

“CyberPWN is a pure-play cybersecurity consultancy and advisory firm With extensive experience in the cybersecurity field and a consultative approach, we are committed to ensuring…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchMunich, GermanyHQ recorded Nov 5, 2026201-500183 contacts →

Exact match

“DataGuard, the European leader in security and compliance software, is trusted by more than organizations across 50+ countries.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 7,521 iso 27001 information security consultants worldwide

See the full list, filter by size, metro and specialty, and access 15,861 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Iso 27001 information security consultants worldwide at a glance

As of Nov 5, 2026
22.6%Verified-email coverage
9.3Average contacts per company
1-10Median size (employees)
2.8%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
5,018
11-50
2,001
51-200
365
201-500
76
501-1,000
12
1,001-5,000
11
5,001-10,000
1
10001+
3

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for iso 27001 information security consultants are linked below.
What qualifies
Company records worldwide whose business descriptions match “iso 27001 information security consultants” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 15,861 professional contacts with verified work emails across the full matched dataset. 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 November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Iso 27001 information security consultants by location

60 lists · largest first

Every Iso 27001 information security consultants 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “iso 27001 information security consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many iso 27001 information security consultants are there worldwide?

RevenueBase identified 7,521 company matches for iso 27001 information security consultants worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Private Sector tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most iso 27001 information security consultants?

The United States leads with 876 companies, followed by the United Kingdom (749) and Germany (511). Every iso 27001 information security consultants list by country and city is linked on this page.

Which city has the most iso 27001 information security consultants?

London leads with 207 company records, followed by Sao Paulo (84) and Paris (83).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 15,861 professional contacts with verified work emails tracked across these 7,521 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 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 SmartSearch, 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.