Company lists · Data refreshed November 2026

Top 25 Iso 27001 certification auditors based in the United Kingdom

RevenueBase identified 139 company matches for iso 27001 certification auditors associated with the United Kingdom as of November 2026 and tracks 1,373 professional contacts across them, including 541 with verified work emails. London is the largest hub.

This list covers company matches for iso 27001 certification auditors associated with the United Kingdom, 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 6, 2026.

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 6, 2026 How this list was built
139Companies
1,373Contacts tracked
541Verified emails
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The 25 largest iso 27001 certification auditors based in the United Kingdom

Ranked by team size
Top 25 of 139 company matches for iso 27001 certification auditors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchWest Malling, United KingdomHQ recorded Nov 6, 2026201-500158 contacts →

Exact match

“Amtivo Group provides expert certification services for ISO standards, as well as training and related services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNorwich, United KingdomHQ recorded Nov 6, 202651-200120 contacts →

Exact match

“We believe in keeping ISO certification simple, so that's exactly what we do.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchUpper Colwall, United KingdomHQ recorded Nov 6, 202651-200114 contacts →

Exact match

“IASME is a cyber security certification company based in the Malvern Hills, with an office in Belfast and one in Dalgety Bay, near Edinburgh.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5086 contacts →

Exact match

“Your partners in quality.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBella Vista, United KingdomHQ recorded Nov 6, 2026201-50066 contacts →

Exact match

“At RA, our PASSION is navigating digital complexities, securing assets, and ensuring compliance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchHarpenden, United KingdomHQ recorded Nov 6, 20261-1024 contacts →

Exact match

“Launched in 2010, ADISA is a UKAS accredited certification body operating including certification to a Standard 8.0 which is a UK GDPR Certification Scheme formally recognised by…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBasingstoke, United KingdomHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“We help organisations achieve business-focused cybersecurity compliance across various industry and regulatory frameworks with successful stakeholder management, particularly in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMalvern, United KingdomHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“CQS (Certified Quality Systems) Ltd delivers straightforward, practical ISO certification with over 25 years of experience.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20015 contacts →

Exact match

“We provide a wide range of auditing, certification and gap analysis services on; AI, DORA, NIS2, Information Security, Business Continuity, International IT Service, GDPR and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchCumbernauld, United KingdomHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“QCS International are experts in ISO certification from management system implementation to auditor training.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBromsgrove, United KingdomHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“Forefront Certification Limited is a UKAS accredited Certification Body based near Birmingham, UK, offering ISO certification to ISO 9001:2015, ISO 14001:2015, ISO/IEC 27001:2022…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWinchester, United KingdomHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Security Consultants at Infosec Partners are formally trained to a high degree, having at least one of the following Security Management certifications: CESG CLAS, CISSP, CISM…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchManchester, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Predatech is a cyber security consultancy delivering a range of services, including penetration testing (CREST accredited), vulnerability management, ISO 27001, and certifications…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“NDC started 15 years ago as a consultancy firm; specialising in manufacturing, service and aerospace sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSunderland, United KingdomHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“Flexible ISO consultancy support to suit you and your business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchWakefield, United KingdomHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“We have an enviable reputation for helping companies achieve Accreditations and Certifications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMaryport, United KingdomHQ recorded Nov 6, 20261-106 contacts →

Exact match

“An accredited Cyber Essentials and Cyber Essentials Plus certification body, guiding organisations through a clear, effective certification process that strengthens security and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchManchester, United KingdomHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Consultancy and Paperless Management Systems for companies wishing to achieve: ISO9001 (Quality), ISO14001 (Environmental), ISO27001 (Information Security) and ISO45001 (Health &…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchKingston Upon Hull, United KingdomHQ recorded Nov 6, 20261-106 contacts →

Exact match

“The Rybec Group is your cyber security partner built by former law enforcement investigators.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchPerth, United KingdomHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Glen Abbot is a leading independent Business Continuity and Information Security consultancy firm with clients from Coventry to Calgary, Perth to Plymouth and Stavanger to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-105 contacts →

Exact match

“As a distinguished UK National Cyber Security Center (NCSC) Assured Services Provider and an authorised certification body for esteemed credentials such as Cyber Essentials, Cyber…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLeeds, United KingdomHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Security standards like ISO27001 can help.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchStoke On Trent, United KingdomHQ recorded Nov 6, 202611-503 contacts →

Exact match

“EBS delivers first‑class consulting, auditing, and training across a wide range of International Management Standards, including ISO 9001 (Quality), ISO 14001 (Environmental), ISO…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-503 contacts →

Exact match

“Inavate Consulting are experts in information security management and ISO 27001 implementation, helping organisations move beyond checkbox compliance to build robust…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchPeterborough, United KingdomHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Digital Octopii help you achieve external ISO certification to the key management system standards: ISO 9001 (Quality), ISO 27001 (Information Security), ISO 14001 (Environment)…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 139 iso 27001 certification auditors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 541 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Iso 27001 certification auditors based in the United Kingdom at a glance

As of Nov 6, 2026
39.4%Verified-email coverage
9.9Average contacts per company
1-10Median size (employees)
25.2%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
101
11-50
25
51-200
9
201-500
4

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 139 companies.

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.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “iso 27001 certification auditors” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 541 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 6, 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 certification auditors by metro

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 certification auditors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many iso 27001 certification auditors are there based in the United Kingdom?

RevenueBase identified 139 company matches for iso 27001 certification auditors associated with the United Kingdom 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?

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

Which city has the most iso 27001 certification auditors?

London leads with 35 company records, followed by Manchester (6) and Leicester (5).

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 541 professional contacts with verified work emails tracked across these 139 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 6, 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.