Company lists · Data refreshed October 2026

Top 25 Quality assurance system suppliers based in the United Kingdom

RevenueBase identified 304 company matches for quality assurance system suppliers associated with the United Kingdom as of October 2026 and tracks 28,834 professional contacts across them, including 8,508 with verified work emails. London is the largest hub.

This list covers company matches for quality assurance system suppliers 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 October 29, 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 Oct 29, 2026 How this list was built
304Companies
28,834Contacts tracked
8,508Verified emails
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The 25 largest quality assurance system suppliers based in the United Kingdom

Ranked by team size
Top 25 of 304 company matches for quality assurance system suppliers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 29, 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 Oct 29, 202610001+24,130 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
2Exact matchWarrington, United KingdomHQ recorded Oct 29, 20261,001-5,000775 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 · Oct 29, 2026 · View company records in RevenueBase
3Exact matchWilmslow, United KingdomHQ recorded Oct 29, 20261,001-5,000313 contacts →

Exact match

“The Citation Group offer unrivalled compliance and quality services to over businesses across the UK, Australia, New Zealand, and Canada.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
4Exact matchDunstable, United KingdomHQ recorded Oct 29, 2026501-1,000276 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 · Oct 29, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Oct 29, 20261,001-5,000254 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
6Exact matchBirmingham, United KingdomHQ recorded Oct 29, 20261,001-5,000195 contacts →

Exact match

“Established in 1994, G&P is a world-leading provider of quality management services to the manufacturing industry, primarily in the automotive, aerospace and off-highway sectors.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Oct 29, 202611-50108 contacts →

Exact match

“Your partners in quality.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
8Exact matchChorley, United KingdomHQ recorded Oct 29, 202651-200102 contacts →

Exact match

“Roq is changing the way the world views Quality.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
9Exact matchNewport, United KingdomHQ recorded Oct 29, 202651-20079 contacts →

Exact match

“tiQtoQ is an independent, innovation-led Quality Engineering partner delivering customised services and intelligent products across industries.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Oct 29, 202611-5065 contacts →

Exact match

“Qniverse is your trusted Quality Assurance service partner that stands at the forefront of a paradigm shift in QA by redefining quality.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
11Exact matchGlasgow, United KingdomHQ recorded Oct 29, 202651-20054 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
12Exact matchGlasgow, United KingdomHQ recorded Oct 29, 202611-5053 contacts →

Exact match

“FQM is a #QHSE (#Quality,#Health,#Safety,#Security and #Environmental compliance software, consultancy, coaching & training organisation, focused on delivering cost effective…”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
13Exact matchAbingdon, United KingdomHQ recorded Oct 29, 202611-5046 contacts →

Exact match

“ZigZag QA is your trusted worldwide quality leader, offering true global reach and unrivaled expertise to reduce risk and efforts.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Oct 29, 202651-20035 contacts →

Exact match

“Tendable offers a complete quality assurance solution to provide health and social care professionals the appropriate tools they need for quality audit, insight and assurance…”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
15Exact matchRotherham, United KingdomHQ recorded Oct 29, 202611-5031 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 · Oct 29, 2026 · View company records in RevenueBase
16Exact matchEast Kilbride, United KingdomHQ recorded Oct 29, 202651-20029 contacts →

Exact match

“Since 1992, we have developed solutions to encourage organisations to focus on what’s important when managing quality, safety and risk.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
17Exact matchStoke Poges, United KingdomHQ recorded Oct 29, 202611-5025 contacts →

Exact match

“Ideagen Healthcare Guardian provides assurance systems for Health and regulated bodies, with pre-built apps for specific requirements that all share information and provide a…”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Oct 29, 202611-5021 contacts →

Exact match

“RiverArk is a Global Quality Consultancy providing comprehensive services in GxP domain.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
19Exact matchManchester, United KingdomHQ recorded Oct 29, 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 · Oct 29, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Oct 29, 202611-5015 contacts →

Exact match

“ISO Standards can help you improve efficiency, reduce costs and increase tender opportunities.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
21Exact matchEsher, United KingdomHQ recorded Oct 29, 202611-5015 contacts →

Exact match

“Our goal is to help organisations run more effective management systems, improve the quality of their products and services, and support them in achieving their own goals.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
22Exact matchEdinburgh, United KingdomHQ recorded Oct 29, 202611-5014 contacts →

Exact match

“Founded in 2001 by Dr Andrew Waddell, Tower Mains Ltd offers bespoke audit, consultancy, training, and quality assurance services to the clinical, healthcare, life sciences…”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
23Exact matchCrumlin, United KingdomHQ recorded Oct 29, 20261,001-5,00014 contacts →

Exact match

“With over 30 years’ experience Randox Quality Control is committed to offering world class products and services designed to help laboratories reduce time and costs without…”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
24Exact matchCumbernauld, United KingdomHQ recorded Oct 29, 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 · Oct 29, 2026 · View company records in RevenueBase
25Exact matchMaidenhead, United KingdomHQ recorded Oct 29, 20261-1011 contacts →

Exact match

“At Singlepoint, we're revolutionising the landscape of Quality Management Systems and compliance with our state-of-the-art no-code QMS platform.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase

Showing 25 of 304 quality assurance system suppliers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 8,508 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Quality assurance system suppliers based in the United Kingdom at a glance

As of Oct 29, 2026
29.5%Verified-email coverage
94.8Average contacts per company
1-10Median size (employees)
14.5%Largest-city concentration · London
Oct 29, 2026Page data refreshed

Companies by employee count

1-10
217
11-50
48
51-200
21
201-500
5
501-1,000
3
1,001-5,000
6
5,001-10,000
1
10001+
2

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 304 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 “quality assurance system suppliers” 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 8,508 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 October 29, 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.

Quality assurance system suppliers 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 “quality assurance system suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many quality assurance system suppliers are there based in the United Kingdom?

RevenueBase identified 304 company matches for quality assurance system suppliers associated with the United Kingdom as of October 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 quality assurance system suppliers?

London leads with 44 company records, followed by Manchester (8) and Aberdeen (6).

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 8,508 professional contacts with verified work emails tracked across these 304 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 October 29, 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.