Company lists · Data refreshed September 2026

Top 25 Supplier audit companies based in the United Kingdom

Name: Supplier audit companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 79 companies tracked

RevenueBase identified 79 supplier audit companies headquartered in the United Kingdom as of September 2026 and tracks 29,489 professional contacts across them, including 10,083 with verified work emails. London is the largest hub.

This list covers supplier audit companies headquartered in the United Kingdom, 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.

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

79Companies

29,489Contacts tracked

10,083Verified emails

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The 25 largest supplier audit companies based in the United Kingdom

Ranked by team size

Top 25 of 79 supplier audit companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to supplier audit companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Intertek	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	10001+	23,155 contacts →
	Indirect evidence “Intertek is a leading Total Quality Assurance provider to industries worldwide.” Source: RevenueBase Database · checked Sep 22, 2026
2	Element Materials Technology	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	5,001-10,000	4,200 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
3	British Engineering Services Group	Indirect evidence	Warrington, United KingdomHQ checked Sep 22, 2026	1,001-5,000	776 contacts →
	Indirect evidence “Testing, inspection, certification and compliance is our core business so that’s what gets 100% of our focus.” Source: RevenueBase Database · checked Sep 22, 2026
4	NQA	Indirect evidence	Dunstable, United KingdomHQ checked Sep 22, 2026	501-1,000	267 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
5	Hqts Group	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	1,001-5,000	250 contacts →
	Partial evidence “Since 1987 HQTS has delivered product inspections, factory audits, testing and quality consulting throughout Asia.” Source: RevenueBase Database · checked Sep 22, 2026
6	BRCGS	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	105 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
7	Safecontractor	Indirect evidence	Cardiff, United KingdomHQ checked Sep 22, 2026	501-1,000	104 contacts →
	Indirect evidence “Creating Safer Workplaces for Everyone.” Source: RevenueBase Database · checked Sep 22, 2026
8	Track Record Global	Indirect evidence	Oxfordshire, United KingdomHQ checked Sep 22, 2026	51-200	63 contacts →
	Indirect evidence “Founded by Frank Miller, Track Record Global are passionate about the future of the planet.” Source: RevenueBase Database · checked Sep 22, 2026
9	International Associates Limited	Partial evidence	Glasgow, United KingdomHQ checked Sep 22, 2026	51-200	50 contacts →
	Partial evidence “International Associates (IA) is a leading provider of assessment, audit, verification, certification and training services.” Source: RevenueBase Database · checked Sep 22, 2026
10	Control Union UK	Indirect evidence	Winchester, United KingdomHQ checked Sep 22, 2026	11-50	22 contacts →
	Indirect evidence “Control Union (UK) is an independent, accredited certification and inspection body helping businesses confidently navigate sustainability.” Source: RevenueBase Database · checked Sep 22, 2026
11	Supply Chain In-Sites LTD	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	17 contacts →
	Indirect evidence “At SCI we have three goals: 1) To always be the trusted partner for our customers; including traditional compliance and certification, risk management and supply chain assurance…” Source: RevenueBase Database · checked Sep 22, 2026
12	Glocert International	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	14 contacts →
	Indirect evidence “Glocert International is an emerging leader in the Testing, Inspection and Certification (TIC) industry.” Source: RevenueBase Database · checked Sep 22, 2026
13	MSS Global	Indirect evidence	Cartmel, United KingdomHQ checked Sep 22, 2026	11-50	13 contacts →
	Indirect evidence “MSS Global - UKAS Accredited Certification Body (CB) with specialism in assurance of ethical management practices, environmental-social-governance (ESG) assurance, and management…” Source: RevenueBase Database · checked Sep 22, 2026
14	Lucideon Cics	Indirect evidence	Stoke On Trent, United KingdomHQ checked Sep 22, 2026	11-50	12 contacts →
	Indirect evidence “Lucideon CICS Limited provides sustainability assurance, management systems certification, product certification and training Assurance Services include third party independent…” Source: RevenueBase Database · checked Sep 22, 2026
15	System Certification Services LTD	Indirect evidence	Ballinderry Road, United KingdomHQ checked Sep 22, 2026	11-50	7 contacts →
	Indirect evidence “SCS provide accredited certification services which add value to Client organisations by challenging their management systems, in accordance with the relevant standard and in…” Source: RevenueBase Database · checked Sep 22, 2026
16	BM Trada Certification Services And Timber Consultancy	Indirect evidence	Hughenden, United KingdomHQ checked Sep 22, 2026	501-1,000	6 contacts →
	Indirect evidence “BM TRADA is proud to be part of Element, the market leader in Testing, Inspection and Certification services.” Source: RevenueBase Database · checked Sep 22, 2026
17	Abac Center Of Excellence Limited	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	6 contacts →
	Indirect evidence “ABAC® educates, equips and supports the world’s leading business organisations with the latest best-in-practice risk assessments, performance assessments, systems improvement and…” Source: RevenueBase Database · checked Sep 22, 2026
18	Responsible Commodities Sourcing Initiative Recosi	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	1-10	5 contacts →
	Indirect evidence “Responsible Commodities Sourcing Initiative (RECOSI) is an international not-for-profit organisation with over a decade of experience in developing sector-specific standards and…” Source: RevenueBase Database · checked Sep 22, 2026
19	Swift Certification Limited	Indirect evidence	Nottingham, United KingdomHQ checked Sep 22, 2026	1-10	5 contacts →
	Indirect evidence “The Swift team come from a variety of business backgrounds.” Source: RevenueBase Database · checked Sep 22, 2026
20	RS Standards Limited	Indirect evidence	Bt2 8la, United KingdomHQ checked Sep 22, 2026	1-10	5 contacts →
	Indirect evidence “RS emerged in 2014 as a management team spin out from a global certification giant.” Source: RevenueBase Database · checked Sep 22, 2026
21	Turnstone Management Systems	Indirect evidence	Ballymena, United KingdomHQ checked Sep 22, 2026	1-10	4 contacts →
	Indirect evidence “Welcome to Turnstone We provide sustainable, legal compliance solutions and pain free, affordable certifications for effective implementation and maintenance of business systems.” Source: RevenueBase Database · checked Sep 22, 2026
22	IQ Verify LTD	Partial evidence	Bromsgrove, United KingdomHQ checked Sep 22, 2026	1-10	4 contacts →
	Partial evidence “Established in 2013, IQ Verify is a UKAS accredited Certification Body who provide quality management audits and certification across a variety of industry.” Source: RevenueBase Database · checked Sep 22, 2026
23	Eximgenie	Indirect evidence	Croydon, United KingdomHQ checked Sep 22, 2026	1-10	3 contacts →
	Indirect evidence “With branches in the UK, China, East & West Africa, and India, we have a global presence to fulfil the demands of exquisite goods.” Source: RevenueBase Database · checked Sep 22, 2026
24	Prepared 4 LTD	Indirect evidence	East Grinstead, United KingdomHQ checked Sep 22, 2026	1-10	2 contacts →
	Indirect evidence “A company of consultants, delivering Quality, Safety, Sustainability, Road Traffic Safety and Environmental Management Systems, Consultancy and Training, CPC Services.” Source: RevenueBase Database · checked Sep 22, 2026
25	Qhse Integrity Services Limited	Indirect evidence	Leeds, United KingdomHQ checked Sep 22, 2026	1-10	2 contacts →
	Indirect evidence “With over 25 years’ experience in QHS & E related roles including certified and non-certified system management, operational practice and certification body auditing, QHSE…” Source: RevenueBase Database · checked Sep 22, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: supplier audit companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names supplier audit companies.
Partial evidence: Its own public description names part of supplier audit companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name supplier audit companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 79 supplier audit companies based in the United Kingdom

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Supplier audit companies based in the United Kingdom at a glance

As of Sep 22, 2026

34.2%Verified-email coverage

373.3Average contacts per company

1-10Median size (employees)

30.4%Largest-city concentration · London

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 79 companies.

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 supplier audit companies, 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.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “supplier audit companies”. 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 supplier audit companies), 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 supplier audit companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
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, 10,083 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.

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 supplier audit companies, 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 supplier audit companies are there based in the United Kingdom?

RevenueBase identified 79 supplier audit companies headquartered in the United Kingdom 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?

Intertek, headquartered in London, tops this list with the largest team on record.

Which city has the most supplier audit companies?

London leads with 24 headquartered companies, followed by Croydon (2) and Leeds (2).

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 10,083 verified decision-maker contacts tracked across these 79 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.