Company lists · Data refreshed September 2026

Top 25 Construction testing services based in the United Kingdom

Name: Construction testing services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 165 companies tracked

RevenueBase identified 165 construction testing services headquartered in the United Kingdom as of September 2026 and tracks 31,586 professional contacts across them, including 11,384 with verified work emails. London is the largest hub.

This list covers construction testing services 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 16, 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 16, 2026 86% judged on-target in blind review

165Companies

31,586Contacts tracked

11,384Verified emails

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The 25 largest construction testing services based in the United Kingdom

Ranked by team size

Top 25 of 165 construction testing services based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to construction testing services: 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 16, 2026	10001+	23,155 contacts →
	Indirect evidence “Intertek is a leading Total Quality Assurance provider to industries worldwide.” Source: RevenueBase Database · checked Sep 16, 2026
2	Element Materials Technology	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	5,001-10,000	4,200 contacts →
	Partial 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 16, 2026
3	Socotec UK & Ireland	Indirect evidence	Burton Upon Trent, United KingdomHQ checked Sep 16, 2026	1,001-5,000	844 contacts →
	Indirect evidence “SOCOTEC UK is a network of industry-leading experts we empower ambitious businesses at every stage of the asset lifecycle.” Source: RevenueBase Database · checked Sep 16, 2026
4	British Engineering Services Group	Partial evidence	Warrington, United KingdomHQ checked Sep 16, 2026	1,001-5,000	776 contacts →
	Partial evidence “Testing, inspection, certification and compliance is our core business so that’s what gets 100% of our focus.” Source: RevenueBase Database · checked Sep 16, 2026
5	BRE	Indirect evidence	Watford, United KingdomHQ checked Sep 16, 2026	501-1,000	635 contacts →
	Indirect evidence “BRE delivers innovative and rigorous products, services, standards and qualifications which are used around the globe to make buildings better for people and for the environment.” Source: RevenueBase Database · checked Sep 16, 2026
6	Warringtonfire	Partial evidence	Warrington, United KingdomHQ checked Sep 16, 2026	201-500	177 contacts →
	Partial evidence “Warringtonfire is proud to be part of Element Materials Technology, the leader in Testing, Inspection, Certification and Calibration services.” Source: RevenueBase Database · checked Sep 16, 2026
7	British Board Of Agrément	Indirect evidence	Croxley Park, United KingdomHQ checked Sep 16, 2026	51-200	165 contacts →
	Indirect evidence “The British Board of Agrément (BBA) drives industry safety and quality by providing services that help clients through enabling innovation, identifying risk and demonstrating…” Source: RevenueBase Database · checked Sep 16, 2026
8	Sandberg	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	94 contacts →
	Indirect evidence “Sandberg is a privately owned organisation able to provide wholly independent professional and technical services to all concerned with the quality and performance of materials.” Source: RevenueBase Database · checked Sep 16, 2026
9	ACS	Strong evidence	Poole, United KingdomHQ checked Sep 16, 2026	51-200	90 contacts →
	Strong evidence “Since its inception in 1987, ACS Testing Ltd have been providing quality materials testing and Consultancy services to the Building, Construction and Civil Engineering industries…” Source: RevenueBase Database · checked Sep 16, 2026
10	Phenna Group	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	5,001-10,000	89 contacts →
	Partial evidence “Phenna Group is a global family of specialist businesses delivering Testing, Inspection, Certification and Compliance (TICC) services to customers worldwide.” Source: RevenueBase Database · checked Sep 16, 2026
11	Safer Sphere	Partial evidence	St Helens, United KingdomHQ checked Sep 16, 2026	51-200	58 contacts →
	Partial evidence “At Safer Sphere, we deliver construction and building safety solutions that bring clarity, compliance, and confidence to every stage of a project.” Source: RevenueBase Database · checked Sep 16, 2026
12	Cmtl LTD	Strong evidence	Hitchin, United KingdomHQ checked Sep 16, 2026	51-200	54 contacts →
	Strong evidence “Construction Materials Testing Laboratories is a leading specialist in delivering high-quality geotechnical testing of construction and civil engineering materials.” Source: RevenueBase Database · checked Sep 16, 2026
13	CARES	Partial evidence	Sevenoaks, United KingdomHQ checked Sep 16, 2026	11-50	48 contacts →
	Partial evidence “CARES is the world’s leading independent provider of assured certification for the constructional steels industry.” Source: RevenueBase Database · checked Sep 16, 2026
14	NDT Group	Indirect evidence	Deeside, United KingdomHQ checked Sep 16, 2026	11-50	48 contacts →
	Indirect evidence “We protect people, assets and the environment in high-risk industries through precise, responsive and reporting-led inspection services that give our clients total confidence in…” Source: RevenueBase Database · checked Sep 16, 2026
15	Envirochem Analytical Laboratories LTD	Indirect evidence	Fareham, United KingdomHQ checked Sep 16, 2026	51-200	42 contacts →
	Indirect evidence “At Envirochem, we empower businesses to stay compliant, safe, and efficient with our industry-leading environmental risk mitigation services.” Source: RevenueBase Database · checked Sep 16, 2026
16	Celnor Group	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	1,001-5,000	34 contacts →
	Partial evidence “We’re an international service provider in the Testing, Inspection, Certification and Compliance (TICC) sector.” Source: RevenueBase Database · checked Sep 16, 2026
17	Inspection Network LTD	Indirect evidence	Tranent, United KingdomHQ checked Sep 16, 2026	51-200	34 contacts →
	Indirect evidence “Inspection Network Limited is part of the Normec Group and are specialists in the Statutory Examination of Cranes, Lifts, Lifting and Handling Equipment and Pressure Plant…” Source: RevenueBase Database · checked Sep 16, 2026
18	Group Management Electrical Surveys Limited	Indirect evidence	Halifax, United KingdomHQ checked Sep 16, 2026	11-50	32 contacts →
	Indirect evidence “For the last 25 years, Group Management Electrical Surveys have been providing Electrical Inspection, Test and Documentation services to many of the UK's leading companies.” Source: RevenueBase Database · checked Sep 16, 2026
19	Thurra	Indirect evidence	Rawtenstall, United KingdomHQ checked Sep 16, 2026	11-50	26 contacts →
	Indirect evidence “When inspecting engineering plant and equipment, you can’t leave anything to chance, but you can leave it to Thurra.” Source: RevenueBase Database · checked Sep 16, 2026
20	CRL Surveys	Indirect evidence	Kenilworth, United KingdomHQ checked Sep 16, 2026	11-50	26 contacts →
	Indirect evidence “CRL Surveys offers an International Service for the Survey, Inspection, and Investigation of all types of Structure and Building.” Source: RevenueBase Database · checked Sep 16, 2026
21	In Situ Site Investigation	Partial evidence	St Leonard's On Sea, United KingdomHQ checked Sep 16, 2026	11-50	21 contacts →
	Partial evidence “In Situ Site Investigation is a specialist geotechnical and geo-environmental site investigation company, which specialises in the use of Cone Penetration Testing (CPT) techniques…” Source: RevenueBase Database · checked Sep 16, 2026
22	Inspection And Consultancy Services Limited	Indirect evidence	Westerham, United KingdomHQ checked Sep 16, 2026	51-200	20 contacts →
	Indirect evidence “INSPECTION AND CONSULTANCY SERVICES LIMITED is an inspection and consulting company based out of Westerham, United Kingdom.” Source: RevenueBase Database · checked Sep 16, 2026
23	Plant And Safety Limited	Partial evidence	Cannock, United KingdomHQ checked Sep 16, 2026	11-50	17 contacts →
	Partial evidence “Plant and Safety Ltd are a national provider for Inspection, Testing, Certification, Lifting Equipment, and Training Services on Lifting Equipment and Lifting Operations, Work…” Source: RevenueBase Database · checked Sep 16, 2026
24	Glocert International	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	14 contacts →
	Partial evidence “Glocert International is an emerging leader in the Testing, Inspection and Certification (TIC) industry.” Source: RevenueBase Database · checked Sep 16, 2026
25	CE Geotech	Strong evidence	Chesterfield, United KingdomHQ checked Sep 16, 2026	11-50	14 contacts →
	Strong evidence “CE Geotech is a leading specialist in delivering high quality geotechnical testing for the construction and civil engineering sector.” Source: RevenueBase Database · checked Sep 16, 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: construction testing services. 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 construction testing services.
Partial evidence: Its own public description names part of construction testing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name construction testing services. 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 165 construction testing services based in the United Kingdom

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Construction testing services based in the United Kingdom at a glance

As of Sep 16, 2026

36.0%Verified-email coverage

191.4Average contacts per company

11-50Median size (employees)

10.9%Largest-city concentration · London

Sep 16, 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 165 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 construction testing services, 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 “construction testing services”. 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 construction testing services), 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 construction testing services, 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, 11,384 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 16, 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 construction testing services, 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 construction testing services are there based in the United Kingdom?

RevenueBase identified 165 construction testing services 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 construction testing services?

London leads with 18 headquartered companies, followed by Manchester (4) and Aberdeen (3).

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 11,384 verified decision-maker contacts tracked across these 165 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 16, 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.