Company lists · Data refreshed September 2026

Top 25 Automated testing equipment manufacturers based in the United Kingdom

Name: Automated testing equipment manufacturers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 45 companies tracked

RevenueBase identified 45 automated testing equipment manufacturers headquartered in the United Kingdom as of September 2026 and tracks 641 professional contacts across them, including 242 with verified work emails. London is the largest hub.

This list covers automated testing equipment manufacturers 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 30, 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 30, 2026 86% judged on-target in blind review

45Companies

641Contacts tracked

242Verified emails

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The 25 largest automated testing equipment manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 45 automated testing equipment manufacturers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to automated testing equipment manufacturers: 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	PTSL	Indirect evidence	Glasgow, United KingdomHQ checked Sep 30, 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 30, 2026
2	Alphr Technology	Indirect evidence	Letchworth, United KingdomHQ checked Sep 30, 2026	51-200	60 contacts →
	Indirect evidence “ALPHR Technology is a team of people with a passion for engineering.” Source: RevenueBase Database · checked Sep 30, 2026
3	Amfax LTD	Strong evidence	Blandford Forum, United KingdomHQ checked Sep 30, 2026	51-200	52 contacts →
	Strong 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 30, 2026
4	XJTAG	Strong evidence	Cambridge, United KingdomHQ checked Sep 30, 2026	11-50	44 contacts →
	Strong 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 30, 2026
5	Directech QM Systems LTD	Strong evidence	Kidderminster, United KingdomHQ checked Sep 30, 2026	51-200	35 contacts →
	Strong evidence “Directech QM Systems is a turnkey provider of automation, testing, and manufacturing systems for all industries.” Source: RevenueBase Database · checked Sep 30, 2026
6	Gen3	Indirect evidence	Farnborough, United KingdomHQ checked Sep 30, 2026	11-50	22 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
7	Quarch	Strong evidence	Aviemore, United KingdomHQ checked Sep 30, 2026	11-50	18 contacts →
	Strong 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 30, 2026
8	Elite Interfaces LTD	Partial evidence	Reading, United KingdomHQ checked Sep 30, 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 30, 2026
9	ATE Solutions LTD	Strong evidence	Blisworth, United KingdomHQ checked Sep 30, 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 30, 2026
10	Reltech Limited	Partial evidence	Dursley, United KingdomHQ checked Sep 30, 2026	11-50	14 contacts →
	Partial evidence “Reltech Limited founded in 1976 is an Independent Test Laboratory, Burn-In and HTOL system manufacturer serving the Semiconductor and Microelectronics industries.” Source: RevenueBase Database · checked Sep 30, 2026
11	Comar Fluid Power	Partial evidence	Telford, United KingdomHQ checked Sep 30, 2026	11-50	14 contacts →
	Partial evidence “Since Comar’s inception in 1978 we have become a leader in designing and developing test equipment; we have supplied in excess of a test solutions to industry many of which are in…” Source: RevenueBase Database · checked Sep 30, 2026
12	Spherea UK	Indirect evidence	Christchurch, United KingdomHQ checked Sep 30, 2026	11-50	13 contacts →
	Indirect evidence “We are a Franco-British high-technology Test Solutions business with more than 70 years experience.” Source: RevenueBase Database · checked Sep 30, 2026
13	Rfcreations	Indirect evidence	Cambridge, United KingdomHQ checked Sep 30, 2026	1-10	12 contacts →
	Indirect evidence “RFcreations is a core team of highly skilled and knowledgeable, professional engineers with decades of experience across the design and development of both RF and digital…” Source: RevenueBase Database · checked Sep 30, 2026
14	RED Earth Systems LTD	Strong evidence	Gloucester, United KingdomHQ checked Sep 30, 2026	11-50	12 contacts →
	Strong evidence “Red Earth Systems is an engineering company based in the Gloucestershire which develops and manufactures test equipment and innovative solutions for industry.” Source: RevenueBase Database · checked Sep 30, 2026
15	Teradyne Limited	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	n/a	12 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
16	The Peak Group	Strong evidence	Letchworth Garden City, United KingdomHQ checked Sep 30, 2026	51-200	11 contacts →
	Strong evidence “The Peak Group is a proven provider of automated test and measurement solutions supporting every stage of the assembly process from component testing to highly complex functional…” Source: RevenueBase Database · checked Sep 30, 2026
17	Devtank LTD	Partial evidence	Derby, United KingdomHQ checked Sep 30, 2026	1-10	8 contacts →
	Partial evidence “From the heart of the Industrial Revolution, Devtank is disrupting the industry with their award-winning production testing and smart monitoring solutions.” Source: RevenueBase Database · checked Sep 30, 2026
18	Jackmark	Strong evidence	Stoke-on-trent, United KingdomHQ checked Sep 30, 2026	11-50	8 contacts →
	Strong evidence “Jackmark is a UK-based specialist in the design, development and manufacture of reliable electrical functional test equipment, primarily serving the automotive industry while also…” Source: RevenueBase Database · checked Sep 30, 2026
19	Newtons4th LTD	Strong evidence	Leicester, United KingdomHQ checked Sep 30, 2026	11-50	5 contacts →
	Strong evidence “Newtons4th Ltd (abbreviated to N4L) was established in 1997 to design, manufacture and support innovative electronic equipment to a world-wide market.” Source: RevenueBase Database · checked Sep 30, 2026
20	Simplicity AI	Partial evidence	Farnborough, United KingdomHQ checked Sep 30, 2026	11-50	5 contacts →
	Partial evidence “Simplicity AI provides a range of advanced technical products and engineering services for test, measurement, control and automation.” Source: RevenueBase Database · checked Sep 30, 2026
21	Mycronic LTD	Indirect evidence	Poole, United KingdomHQ checked Sep 30, 2026	51-200	4 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
22	Vadis LTD	Indirect evidence	Poole, United KingdomHQ checked Sep 30, 2026	1-10	3 contacts →
	Indirect evidence “We are a small engineering company specialising in test & measurement, data capture and control applications.” Source: RevenueBase Database · checked Sep 30, 2026
23	Elmen Consultants Limited	Partial evidence	Edinburgh, United KingdomHQ checked Sep 30, 2026	1-10	2 contacts →
	Partial evidence “Elmen Consultants develop solutions for testing electronic components and systems.” Source: RevenueBase Database · checked Sep 30, 2026
24	Thetic Engineering LTD	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	1-10	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
25	Techline Systems	Partial evidence	Waterlooville, United KingdomHQ checked Sep 30, 2026	1-10	1 contacts →
	Partial evidence “Techline Systems designs and manufactures a broad range of electronic circuits and systems.” Source: RevenueBase Database · checked Sep 30, 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: automated testing equipment manufacturers. 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 automated testing equipment manufacturers.
Partial evidence: Its own public description names part of automated testing equipment manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name automated testing equipment manufacturers. 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 45 automated testing equipment manufacturers based in the United Kingdom

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Automated testing equipment manufacturers based in the United Kingdom at a glance

As of Sep 30, 2026

37.8%Verified-email coverage

14.2Average contacts per company

11-50Median size (employees)

8.9%Largest-city concentration · London

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

1,001-5,000

5,001-10,000

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 45 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 automated testing equipment manufacturers, 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 “automated testing equipment manufacturers”. 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 automated testing equipment manufacturers), 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 automated testing equipment manufacturers, 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, 242 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 30, 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 automated testing equipment manufacturers, 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 automated testing equipment manufacturers are there based in the United Kingdom?

RevenueBase identified 45 automated testing equipment manufacturers 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?

PTSL, headquartered in Glasgow, tops this list with the largest team on record.

Which city has the most automated testing equipment manufacturers?

London leads with 4 headquartered companies, followed by Cambridge (2) and Christchurch (2).

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 242 verified decision-maker contacts tracked across these 45 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 30, 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.