Company lists · Data refreshed November 2026

Top 24 Certification organizations based in the United Kingdom

Name: Certification organizations based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 1,005 companies tracked

RevenueBase identified 1,005 company matches for certification organizations associated with the United Kingdom as of November 2026 and tracks 71,265 professional contacts across them, including 23,227 with verified work emails. London is the largest hub.

This list covers company matches for certification organizations 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

1,005Companies

71,265Contacts tracked

23,227Verified emails

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The 24 largest certification organizations based in the United Kingdom

Ranked by team size

Top 24 of 1,005 company matches for certification organizations 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Bureau Veritas	Exact match	Paris, United KingdomHQ recorded Nov 6, 2026	10001+	50,489 contacts →
	Exact match “Bureau Veritas is a world leader in Testing, Inspection and Certification.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Element Materials Technology	Exact match	London, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	4,533 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 · Nov 6, 2026 · View company records in RevenueBase
3	The Knowledge Academy	Exact match	Bracknell, United KingdomHQ recorded Nov 6, 2026	n/a	1,717 contacts →
	Exact match “The Knowledge Academy is a global leader in providing high-quality training and certification courses across various domains.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	British Engineering Services Group	Exact match	Warrington, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	787 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 · Nov 6, 2026 · View company records in RevenueBase
5	Nebosh	Exact match	Leicester, United KingdomHQ recorded Nov 6, 2026	51-200	473 contacts →
	Exact match “The National Examination Board in Occupational Safety and Health (NEBOSH) is a leading global organisation, which provides health, safety and environmental qualifications.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	UKAS	Exact match	Staines-upon-thames, United KingdomHQ recorded Nov 6, 2026	201-500	471 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 · Nov 6, 2026 · View company records in RevenueBase
7	OPITO	Exact match	Aberdeen, United KingdomHQ recorded Nov 6, 2026	51-200	215 contacts →
	Exact match “OPITO is the global, not-for-profit, skills authority for safety-critical industries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Certsure LLP	Exact match	Luton, United KingdomHQ recorded Nov 6, 2026	201-500	199 contacts →
	Exact match “Certsure offers industry-leading certification services, Building Regulations schemes, products and support to the construction industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Warringtonfire	Exact match	Warrington, United KingdomHQ recorded Nov 6, 2026	201-500	199 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 · Nov 6, 2026 · View company records in RevenueBase
10	NCC Education	Exact match	Manchester, United KingdomHQ recorded Nov 6, 2026	51-200	199 contacts →
	Exact match “Founded in 1966, NCC Education is an awarding body and a global provider of British education in Computing and Business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Training Qualifications UK	Exact match	Sale, United KingdomHQ recorded Nov 6, 2026	51-200	196 contacts →
	Exact match “If you are looking to partner with a professional, customer-service orientated, Ofqual-approved Awarding Organisation that understands the needs of training providers, then…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	British Board Of Agrément	Exact match	Croxley Park, United KingdomHQ recorded Nov 6, 2026	51-200	190 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 · Nov 6, 2026 · View company records in RevenueBase
13	Kiwa UK	Exact match	Cheltenham, United KingdomHQ recorded Nov 6, 2026	201-500	168 contacts →
	Exact match “Kiwa Ltd is part of the Kiwa Group, a global top 20 Testing, Inspection and Certification (TIC) organisation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Amtivo Group	Exact match	West Malling, United KingdomHQ recorded Nov 6, 2026	201-500	158 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
15	Ecctis	Exact match	Cheltenham, United KingdomHQ recorded Nov 6, 2026	201-500	144 contacts →
	Exact match “We help people and organisations make sense of qualifications globally.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Languagecert	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	143 contacts →
	Exact match “LANGUAGECERT is an Awarding Organisation dedicated to language skills assessment and certification.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Niceic	Exact match	Dunstable, United KingdomHQ recorded Nov 6, 2026	201-500	142 contacts →
	Exact match “NICEIC is the UK’s largest certification body for electrical businesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Isoqar	Exact match	Manchester, United KingdomHQ recorded Nov 6, 2026	51-200	141 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 · Nov 6, 2026 · View company records in RevenueBase
19	Apmg International	Exact match	High Wycombe, United KingdomHQ recorded Nov 6, 2026	51-200	137 contacts →
	Exact match “APMG International is a leading provider of professional certifications and best practice solutions which are available as self-study exams through APMG, or as training courses…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Signature	Exact match	Durham, United KingdomHQ recorded Nov 6, 2026	11-50	136 contacts →
	Exact match “Signature is the leading awarding body for deaf communication qualifications in the UK.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Stroma Certification	Exact match	Wakefield, United KingdomHQ recorded Nov 6, 2026	201-500	135 contacts →
	Exact match “Elmhurst Energy and Stroma Certification have merged.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Fensa Limited	Exact match	London, United KingdomHQ recorded Nov 6, 2026	11-50	135 contacts →
	Exact match “For consumers, FENSA is the Government scheme that is industry-backed and provides homeowner protection in the double glazing industry for windows and doors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	CREST	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	123 contacts →
	Exact match “CREST is an international not-for-profit, membership body representing the global cyber security industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Citation ISO Certification	Exact match	Norwich, United KingdomHQ recorded Nov 6, 2026	51-200	120 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

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 “certification organizations”. 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 24 of 1,005 certification organizations based in the United Kingdom

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Certification organizations based in the United Kingdom at a glance

As of Nov 6, 2026

32.6%Verified-email coverage

70.9Average contacts per company

1-10Median size (employees)

23.9%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

569

11-50

263

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 1,005 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 “certification organizations” 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 23,227 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.

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

How many certification organizations are there based in the United Kingdom?

RevenueBase identified 1,005 company matches for certification organizations 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?

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

Which city has the most certification organizations?

London leads with 240 company records, followed by Manchester (32) and Birmingham (12).

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 23,227 professional contacts with verified work emails tracked across these 1,005 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.