Company lists · Data refreshed September 2026

Top 25 Independent quality auditors based in the United Kingdom

RevenueBase identified 228 company matches for independent quality auditors associated with the United Kingdom as of September 2026 and tracks 31,874 professional contacts across them, including 11,085 with verified work emails. London is the largest hub.

This list covers company matches for independent quality 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 September 20, 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 Sep 20, 2026 How this list was built
228Companies
31,874Contacts tracked
11,085Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest independent quality auditors based in the United Kingdom

Ranked by team size
Top 25 of 228 company matches for independent quality auditors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchLondon, United KingdomHQ recorded Sep 20, 202610001+23,155 contacts →

Exact match

“Intertek is a leading Total Quality Assurance provider to industries worldwide.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 20, 20265,001-10,0004,200 contacts →

Exact match

“The Element Materials Technology Group is one of the world’s leading global providers of testing, inspection, and certification services for a diverse range of products…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchWarrington, United KingdomHQ recorded Sep 20, 20261,001-5,000776 contacts →

Exact match

“Testing, inspection, certification and compliance is our core business so that’s what gets 100% of our focus.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchStaines-upon-thames, United KingdomHQ recorded Sep 20, 2026201-500445 contacts →

Exact match

“UKAS is the world’s leading #accreditation body delivering confidence in products and services, and supporting global value chains.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchDunstable, United KingdomHQ recorded Sep 20, 2026501-1,000267 contacts →

Exact match

“NQA is a leading global certification body, respected for providing flexible and supportive certification and training services that are technically advanced and meet the needs of…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 20, 20261,001-5,000250 contacts →

Exact match

“Since 1987 HQTS has delivered product inspections, factory audits, testing and quality consulting throughout Asia.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchWarrington, United KingdomHQ recorded Sep 20, 2026201-500177 contacts →

Exact match

“Warringtonfire is proud to be part of Element Materials Technology, the leader in Testing, Inspection, Certification and Calibration services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchCroxley Park, United KingdomHQ recorded Sep 20, 202651-200165 contacts →

Exact match

“The British Board of Agrément (BBA) drives industry safety and quality by providing services that help clients through enabling innovation, identifying risk and demonstrating…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchWest Malling, United KingdomHQ recorded Sep 20, 2026201-500138 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 · Sep 20, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200105 contacts →

Exact match

“BRCGS is a leading brand and consumer protection organisation, used by certificated suppliers over 130 countries, with certification issued through a global network of accredited…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 20, 20265,001-10,00089 contacts →

Exact match

“Phenna Group is a global family of specialist businesses delivering Testing, Inspection, Certification and Compliance (TICC) services to customers worldwide.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5088 contacts →

Exact match

“Your partners in quality.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchHughenden, United KingdomHQ recorded Sep 20, 2026501-1,00062 contacts →

Exact match

“BM TRADA is proud to be part of Element, the market leader in Testing, Inspection, and Certification services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchMilton Keynes, United KingdomHQ recorded Sep 20, 202651-20055 contacts →

Exact match

“BASEC Group Limited, a part of Kiwa, is a global leader in product testing and certification services for power, energy, data/signal cables and ancillary products, in addition to…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchGlasgow, United KingdomHQ recorded Sep 20, 202651-20050 contacts →

Exact match

“International Associates (IA) is a leading provider of assessment, audit, verification, certification and training services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 20, 20261,001-5,00034 contacts →

Exact match

“We’re an international service provider in the Testing, Inspection, Certification and Compliance (TICC) sector.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchManchester, United KingdomHQ recorded Sep 20, 202611-5034 contacts →

Exact match

“Centre for Assessment Ltd is a leading certification body, delivering audits and assessments to thousands of clients both nationally and internationally.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchRotherham, United KingdomHQ recorded Sep 20, 202611-5028 contacts →

Exact match

“Clear Quality is a professional ISO Consultancy business and Prime Training provider based in South Yorkshire.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchWinchester, United KingdomHQ recorded Sep 20, 202611-5022 contacts →

Exact match

“Control Union (UK) is an independent, accredited certification and inspection body helping businesses confidently navigate sustainability.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchYork, United KingdomHQ recorded Sep 20, 202611-5022 contacts →

Exact match

“Eurofins York has over 25 years’ experience delivering global regulatory compliance, CE marking solutions and certification.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchJarrow, United KingdomHQ recorded Sep 20, 20261-1021 contacts →

Exact match

“The certification body of choice for the built environment.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20021 contacts →

Exact match

“ATC International is based in the United Kingdom and provides international conformity assessment and certification services across the world.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchPriorslee, United KingdomHQ recorded Sep 20, 202611-5020 contacts →

Exact match

“We are proudly the only employee-owned UKAS-accredited certification and verification body in the UK.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchCambridge, United KingdomHQ recorded Sep 20, 202611-5020 contacts →

Exact match

“TWI Certification Ltd (TWI CL), is a wholly-owned subsidiary of The Welding Institute (TWI), formed in 1993 to exemplify the independence and impartiality required to deliver…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchManchester, United KingdomHQ recorded Sep 20, 202651-20019 contacts →

Exact match

“Business Excellence & Management Consortium (BEMCON) is a professional training, consulting, and auditing organization specializing in ISO standards, occupational health & safety…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 228 independent quality auditors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 11,085 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Independent quality auditors based in the United Kingdom at a glance

As of Sep 20, 2026
34.8%Verified-email coverage
139.8Average contacts per company
1-10Median size (employees)
21.5%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
124
11-50
55
51-200
24
201-500
8
501-1,000
5
1,001-5,000
6
5,001-10,000
2
10001+
3

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 228 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 “independent quality 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 11,085 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 September 20, 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.

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

How many independent quality auditors are there based in the United Kingdom?

RevenueBase identified 228 company matches for independent quality auditors associated with the United Kingdom as of September 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?

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

Which city has the most independent quality auditors?

London leads with 49 company records, followed by Aberdeen (6) and Manchester (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 11,085 professional contacts with verified work emails tracked across these 228 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 September 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 228 independent quality auditors based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

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.