Company lists · Data refreshed September 2026

Top 25 Iso 9001 consulting firms based in the United Kingdom

Name: Iso 9001 consulting firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 608 companies tracked

RevenueBase identified 608 company matches for iso 9001 consulting firms associated with the United Kingdom as of September 2026 and tracks 2,682 professional contacts across them, including 955 with verified work emails. London is the largest hub.

This list covers company matches for iso 9001 consulting firms 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 28, 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 28, 2026 How this list was built

608Companies

2,682Contacts tracked

955Verified emails

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The 25 largest iso 9001 consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 608 company matches for iso 9001 consulting firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	The Citation Group	Exact match	Wilmslow, United KingdomHQ recorded Sep 28, 2026	1,001-5,000	291 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 · Sep 28, 2026 · View company records in RevenueBase
2	Citation ISO Certification	Exact match	Norwich, United KingdomHQ recorded Sep 28, 2026	51-200	115 contacts →
	Exact match “We believe in keeping ISO certification simple, so that's exactly what we do.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	ROQ	Exact match	Chorley, United KingdomHQ recorded Sep 28, 2026	51-200	109 contacts →
	Exact match “Roq is changing the way the world views Quality.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Isoqar	Exact match	Manchester, United KingdomHQ recorded Sep 28, 2026	51-200	99 contacts →
	Exact match “Our reputation for providing outstanding service explains why clients who joined us when we first opened our doors in 1993 are still with us today.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	ISO Quality Services LTD ISO QSL	Exact match	Worcester, United KingdomHQ recorded Sep 28, 2026	11-50	37 contacts →
	Exact match “ISO Quality Services Limited specialise in helping businesses improve through the implementation of ISO and BS EN Management Standards, ISO consultancy and ISO training, helping…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Clear Quality Limited	Exact match	Rotherham, United KingdomHQ recorded Sep 28, 2026	11-50	28 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 28, 2026 · View company records in RevenueBase
7	Total Compliance & Training In Transport, Logistics & Construction	Exact match	Grantham, United KingdomHQ recorded Sep 28, 2026	11-50	24 contacts →
	Exact match “Welcome to Total Compliance - Your Trusted Partner for Legal Compliance and Education in Transport!” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	TPT Consultancy & Training LTD	Exact match	Merthyr Tydfil, United KingdomHQ recorded Sep 28, 2026	1-10	21 contacts →
	Exact match “TPT is a leading provider of training and consultancy, serving customers around the world.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Riverark Limited	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	20 contacts →
	Exact match “RiverArk is a Global Quality Consultancy providing comprehensive services in GxP domain.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Bemcon	Exact match	Manchester, United KingdomHQ recorded Sep 28, 2026	51-200	19 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 28, 2026 · View company records in RevenueBase
11	CQS Certified Quality Systems Limited	Exact match	Malvern, United KingdomHQ recorded Sep 28, 2026	11-50	18 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 · Sep 28, 2026 · View company records in RevenueBase
12	Challengecurve	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	18 contacts →
	Exact match “ChallengeCurve helps organisations embrace innovation and transformation with confidence and courage by designing and implementing customised quality assurance strategies.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Premier Advisory Group	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	18 contacts →
	Exact match “Premier Advisory Group is certified to ISO Standard 9001:2015 for the provision of management consultancy, our core objective has always been to drive and support continual…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Aviso Consultancy LTD	Exact match	Southwark, United KingdomHQ recorded Sep 28, 2026	11-50	17 contacts →
	Exact match “AvISO Consultancy helps organisations build management systems that genuinely work in practice.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Blackmores UK LTD	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	17 contacts →
	Exact match “ISO Standards can help you improve efficiency, reduce costs and increase tender opportunities.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Bywater	Exact match	Esher, United KingdomHQ recorded Sep 28, 2026	11-50	16 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 · Sep 28, 2026 · View company records in RevenueBase
17	Quadra LTD	Exact match	Holywood, United KingdomHQ recorded Sep 28, 2026	11-50	13 contacts →
	Exact match “Quadra is a management systems consultancy and training organisation specialising in implementing management systems to international standards to include: Quality (ISO…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Qhse Aberdeen Limited	Exact match	Aberdeen, United KingdomHQ recorded Sep 28, 2026	1-10	13 contacts →
	Exact match “QHSE Aberdeen provide a Consultancy, Advisory & Training Service to companies that require assistance in the areas of Quality, Heath & Safety, Environmental, Audits, ISO…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Imed Consultancy LTD	Exact match	Bloxham, United KingdomHQ recorded Sep 28, 2026	11-50	13 contacts →
	Exact match “We are a medical device regulatory and quality consulting team working with people and their companies to navigate the minefield of todays global medical device regulations to…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Twosb Management Systems	Exact match	Maidstone, United KingdomHQ recorded Sep 28, 2026	1-10	13 contacts →
	Exact match “We support a wide range of manufacturing, technology, service and construction businesses in the implementation of UKAS accredited ISO Management System Standards.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Candy Management Consultants	Exact match	Stockport, United KingdomHQ recorded Sep 28, 2026	1-10	13 contacts →
	Exact match “Candy Management Consultants has been aiding companies in attaining ISO Certification and ensuring Health and Safety compliance since 2017.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	QCS International	Exact match	Cumbernauld, United KingdomHQ recorded Sep 28, 2026	1-10	12 contacts →
	Exact match “QCS International are experts in ISO certification from management system implementation to auditor training.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Patient Guard	Exact match	Blackpool, United KingdomHQ recorded Sep 28, 2026	1-10	12 contacts →
	Exact match “Patient Guard: Your Leading Partner in EU, UK, and FDA Regulatory Affairs and Quality Assurance for Medical Devices.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Admac Limited	Exact match	Rochester, United KingdomHQ recorded Sep 28, 2026	11-50	11 contacts →
	Exact match “Admac is a consultancy and training practice, supporting businesses with the development and maintenance of management systems, advising and assisting on compliance issues, and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Batalas Auditor Training	Exact match	Fareham, United KingdomHQ recorded Sep 28, 2026	11-50	10 contacts →
	Exact match “Batalas Ltd offers flexible and competitively priced training and consultancy for ISO Management Systems.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “iso 9001 consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 608 iso 9001 consulting firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 955 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Iso 9001 consulting firms based in the United Kingdom at a glance

As of Sep 28, 2026

35.6%Verified-email coverage

4.4Average contacts per company

1-10Median size (employees)

12.2%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

529

11-50

51-200

201-500

1,001-5,000

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 608 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 9001 consulting firms” 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 955 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 28, 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 9001 consulting firms by metro

Iso 9001 consulting firms in London74

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 9001 consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many iso 9001 consulting firms are there based in the United Kingdom?

RevenueBase identified 608 company matches for iso 9001 consulting firms 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?

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

Which city has the most iso 9001 consulting firms?

London leads with 74 company records, followed by Manchester (16) and Aberdeen (11).

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 955 professional contacts with verified work emails tracked across these 608 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 28, 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.