Company lists · Data refreshed September 2026

Top 25 Electronics testing services based in the United Kingdom

Name: Electronics 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 207 companies tracked

RevenueBase identified 207 electronics testing services headquartered in the United Kingdom as of September 2026 and tracks 31,014 professional contacts across them, including 11,129 with verified work emails. London is the largest hub.

This list covers electronics 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

207Companies

31,014Contacts tracked

11,129Verified emails

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The 25 largest electronics testing services based in the United Kingdom

Ranked by team size

Top 25 of 207 electronics 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 electronics 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	2i	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 16, 2026	201-500	248 contacts →
	Indirect evidence “We help CTOs, Programme Directors, and Engineering Leaders deliver complex technology change safely, on time, under control, and at sustainable cost.” 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	Seaward	Partial evidence	Peterlee, United KingdomHQ checked Sep 16, 2026	51-200	83 contacts →
	Partial evidence “With over 75 years’ experience at the cutting edge of electrical safety testing, our expertise and innovations have produced a number of world firsts.” Source: RevenueBase Database · checked Sep 16, 2026
8	PTSL	Indirect evidence	Glasgow, United KingdomHQ checked Sep 16, 2026	51-200	81 contacts →
	Indirect evidence “Probe Test Solutions Ltd (PTSL) is a world leader in delivering advanced ATE test hardware solutions to our blue chip customers globally.” Source: RevenueBase Database · checked Sep 16, 2026
9	Basec Group Limited Basec	Partial evidence	Milton Keynes, United KingdomHQ checked Sep 16, 2026	51-200	55 contacts →
	Partial evidence “BASEC Group Limited, a part of Kiwa, is a global leader in product testing and certification services for power, energy, data/signal cables and ancillary products, in addition to…” Source: RevenueBase Database · checked Sep 16, 2026
10	Eurofins E&e UK	Strong evidence	York, United KingdomHQ checked Sep 16, 2026	51-200	53 contacts →
	Strong evidence “Eurofins E&E UK provides a comprehensive range of testing, certification and compliance services for designers and manufacturers of electronic and electrical products.” Source: RevenueBase Database · checked Sep 16, 2026
11	Amfax LTD	Indirect evidence	Blandford Forum, United KingdomHQ checked Sep 16, 2026	51-200	52 contacts →
	Indirect evidence “Amfax is a world class test system solutions provider, delivering high quality, high performance and cost effective automated test equipment to the aerospace, defence, rail &…” Source: RevenueBase Database · checked Sep 16, 2026
12	Zigzag QA	Indirect evidence	Abingdon, United KingdomHQ checked Sep 16, 2026	11-50	47 contacts →
	Indirect evidence “ZigZag QA is your trusted worldwide quality leader, offering true global reach and unrivaled expertise to reduce risk and efforts.” Source: RevenueBase Database · checked Sep 16, 2026
13	XJTAG	Indirect evidence	Cambridge, United KingdomHQ checked Sep 16, 2026	11-50	44 contacts →
	Indirect evidence “XJTAG is a world leading producer of automated test equipment, with a wide range of tools for complex debug, test and programming.” Source: RevenueBase Database · checked Sep 16, 2026
14	Calbarrie Compliance Services LTD	Indirect evidence	Cheltenham, United KingdomHQ checked Sep 16, 2026	51-200	42 contacts →
	Indirect evidence “Calbarrie Compliance Services Ltd (Calbarrie) is the UK’s market leader in electrical compliance services and has been trading within the Health & Safety and Compliance sectors…” Source: RevenueBase Database · checked Sep 16, 2026
15	Intersafe Limited	Partial evidence	Southampton, United KingdomHQ checked Sep 16, 2026	11-50	36 contacts →
	Partial evidence “COMPANY OVERVIEW Based near Southampton, Intersafe are compliance specialists providing a range of electrical testing services for large, commercial sites.” Source: RevenueBase Database · checked Sep 16, 2026
16	Martindale Electric Co. LTD	Partial evidence	Watford, United KingdomHQ checked Sep 16, 2026	11-50	32 contacts →
	Partial evidence “With over 95 years of experience, Martindale Electric is one of the most trusted brands in electrical safety testing.” Source: RevenueBase Database · checked Sep 16, 2026
17	Aracion Technology LTD	Indirect evidence	Chalfont St Peter, United KingdomHQ checked Sep 16, 2026	51-200	29 contacts →
	Indirect evidence “Founded in 2014 and headquartered in London, Aracion is a leader in providing cutting-edge global solutions across various sectors.” Source: RevenueBase Database · checked Sep 16, 2026
18	Gen3	Indirect evidence	Farnborough, United KingdomHQ checked Sep 16, 2026	11-50	22 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
19	UK Electronics LTD	Partial evidence	Royton, United KingdomHQ checked Sep 16, 2026	51-200	22 contacts →
	Partial evidence “UK Electronics Ltd have been providing a high quality, cost-effective service to customers since 1983.” Source: RevenueBase Database · checked Sep 16, 2026
20	Safety Inspections Group LTD	Indirect evidence	Leeds, United KingdomHQ checked Sep 16, 2026	11-50	22 contacts →
	Indirect evidence “Safety Inspections Group Ltd specialise in electrical safety for both residential and commercial premises, and was created by the founders of a multi-award winning electrical…” Source: RevenueBase Database · checked Sep 16, 2026
21	Quarch	Partial evidence	Aviemore, United KingdomHQ checked Sep 16, 2026	11-50	18 contacts →
	Partial evidence “Quarch Technology is a global leader in precision Test & Measurement solutions, specializing in automated power analysis and high-speed physical layer testing.” Source: RevenueBase Database · checked Sep 16, 2026
22	UK Circuits And Electronics Solutions Limited	Partial evidence	Middleton, United KingdomHQ checked Sep 16, 2026	51-200	18 contacts →
	Partial evidence “Based in the Greater Manchester electronics corridor, UK Circuits offer world-class facilities with quality at the heart of everything we do.” Source: RevenueBase Database · checked Sep 16, 2026
23	Elite Interfaces LTD	Partial evidence	Reading, United KingdomHQ checked Sep 16, 2026	11-50	17 contacts →
	Partial evidence “Elite Interfaces Ltd are specialists in the supply, design and manufacture of Test Solutions and Services for the Electronics Manufacturing Industry ranging from Flying Probe…” Source: RevenueBase Database · checked Sep 16, 2026
24	ATE Solutions LTD	Strong evidence	Blisworth, United KingdomHQ checked Sep 16, 2026	11-50	17 contacts →
	Strong evidence “We are the UK’s leading provider of automated testing solutions for electronic and electrical products.” Source: RevenueBase Database · checked Sep 16, 2026
25	Spin UK Limited	Indirect evidence	Worcester, United KingdomHQ checked Sep 16, 2026	11-50	16 contacts →
	Indirect evidence “Founded in Spin UK Ltd was the second company in the Spin Group.” 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: electronics 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 electronics testing services.
Partial evidence: Its own public description names part of electronics testing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electronics 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 207 electronics testing services based in the United Kingdom

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Electronics testing services based in the United Kingdom at a glance

As of Sep 16, 2026

35.9%Verified-email coverage

149.8Average contacts per company

1-10Median size (employees)

9.7%Largest-city concentration · London

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

116

11-50

51-200

201-500

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 207 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 electronics 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 “electronics 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 electronics 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 electronics 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, 11,129 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 electronics 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 electronics testing services are there based in the United Kingdom?

RevenueBase identified 207 electronics 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 electronics testing services?

London leads with 20 headquartered companies, followed by Manchester (6) and Edinburgh (4).

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 11,129 verified decision-maker contacts tracked across these 207 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.