Company lists · Data refreshed October 2026

Top 25 Functional tester suppliers based in the United Kingdom

Name: Functional tester suppliers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 25, 2026 93 companies tracked

RevenueBase identified 93 company matches for functional tester suppliers associated with the United Kingdom as of October 2026 and tracks 1,927 professional contacts across them, including 692 with verified work emails. Harrow is the largest hub.

This list covers company matches for functional tester suppliers 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 October 25, 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 Oct 25, 2026 How this list was built

93Companies

1,927Contacts tracked

692Verified emails

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The 25 largest functional tester suppliers based in the United Kingdom

Ranked by team size

Top 25 of 93 company matches for functional tester suppliers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 25, 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	Pico Technology	Exact match	Eaton Socon, United KingdomHQ recorded Oct 25, 2026	51-200	165 contacts →
	Exact match “Pico Technology is a leading global provider of high-performance oscilloscopes, diagnostic equipment, data loggers, and signal generators.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
2	Microlease	Exact match	Harrow, United KingdomHQ recorded Oct 25, 2026	201-500	73 contacts →
	Exact match “We are the experts in test and measurement equipment, with the largest, most comprehensive test equipment service provider, supporting market-leading customers around the world.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
3	Nemco Limited	Exact match	Stevenage, United KingdomHQ recorded Oct 25, 2026	51-200	69 contacts →
	Exact match “Nemco is a leading Contract Electronics Manufacturer providing a complete product manufacturing, logistics and repair service to our customers.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
4	Alphr Technology	Exact match	Letchworth, United KingdomHQ recorded Oct 25, 2026	51-200	60 contacts →
	Exact match “ALPHR Technology is a team of people with a passion for engineering.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
5	Amfax LTD	Exact match	Blandford Forum, United KingdomHQ recorded Oct 25, 2026	51-200	59 contacts →
	Exact match “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 &…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
6	XJTAG	Exact match	Cambridge, United KingdomHQ recorded Oct 25, 2026	11-50	41 contacts →
	Exact match “XJTAG is a world leading producer of automated test equipment, with a wide range of tools for complex debug, test and programming.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
7	Directech QM Systems LTD	Exact match	Kidderminster, United KingdomHQ recorded Oct 25, 2026	51-200	39 contacts →
	Exact match “Directech QM Systems is a turnkey provider of automation, testing, and manufacturing systems for all industries.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
8	Norcott Technologies Limited	Exact match	Widnes, United KingdomHQ recorded Oct 25, 2026	51-200	30 contacts →
	Exact match “The Norcott Technologies is a leading supplier of electronic design and manufacturing services.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
9	Zwickroell UK & Ireland	Exact match	Worcester, United KingdomHQ recorded Oct 25, 2026	51-200	29 contacts →
	Exact match “ZwickRoell is a leading, global supplier of materials and component testing machines.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
10	ABI Electronics	Exact match	Barnsley, United KingdomHQ recorded Oct 25, 2026	11-50	24 contacts →
	Exact match “Established in 1983 in the United Kingdom, ABI Electronics enables organisations worldwide to understand, test, repair and sustain electronic systems at component level.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
11	Gen3	Exact match	Farnborough, United KingdomHQ recorded Oct 25, 2026	11-50	22 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
12	Quarch	Exact match	Aviemore, United KingdomHQ recorded Oct 25, 2026	11-50	19 contacts →
	Exact match “Quarch Technology is a global leader in precision Test & Measurement solutions, specializing in automated power analysis and high-speed physical layer testing.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
13	UK Circuits And Electronics Solutions Limited	Exact match	Middleton, United KingdomHQ recorded Oct 25, 2026	51-200	18 contacts →
	Exact match “Based in the Greater Manchester electronics corridor, UK Circuits offer world-class facilities with quality at the heart of everything we do.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
14	Elite Interfaces LTD	Exact match	Reading, United KingdomHQ recorded Oct 25, 2026	11-50	18 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
15	Lambda Photometrics LTD	Exact match	Harpenden, United KingdomHQ recorded Oct 25, 2026	11-50	17 contacts →
	Exact match “Founded in 1977, Lambda Photometrics Ltd is a leading supplier of characterisation, measurement and analysis equipment, applied to signals from DC to Light.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
16	ATE Solutions LTD	Exact match	Blisworth, United KingdomHQ recorded Oct 25, 2026	11-50	17 contacts →
	Exact match “We are the UK’s leading provider of automated testing solutions for electronic and electrical products.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
17	RVL	Exact match	Matfield, United KingdomHQ recorded Oct 25, 2026	11-50	17 contacts →
	Exact match “Electronic Hardware Design - Electronic Software Design - Electronic Manufacturing Services - Contract Electronic Manufacturing Services RVL is an electronic engineering company…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
18	Accelonix UK & Ireland	Exact match	Cambridge, United KingdomHQ recorded Oct 25, 2026	11-50	16 contacts →
	Exact match “Welcome to Accelonix!” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
19	Instrotech LTD	Exact match	Watford, United KingdomHQ recorded Oct 25, 2026	11-50	16 contacts →
	Exact match “Tel:+44 (0)1923 442244 Email: sales@instrotech.com Instrotech is a specialist distributor of electrical and environmental test equipment representing all of the major brands.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
20	SJ Electronics LTD	Exact match	Kettering, United KingdomHQ recorded Oct 25, 2026	11-50	16 contacts →
	Exact match “Technical distributor of electronic and electrical test and measurement equipment and electrical, temperature and pressure calibration systems.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
21	Reltech Limited	Exact match	Dursley, United KingdomHQ recorded Oct 25, 2026	11-50	15 contacts →
	Exact match “Reltech Limited founded in 1976 is an Independent Test Laboratory, Burn-In and HTOL system manufacturer serving the Semiconductor and Microelectronics industries.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
22	Comar Fluid Power	Exact match	Telford, United KingdomHQ recorded Oct 25, 2026	11-50	15 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
23	Kaisertech LTD	Exact match	Eastleigh, United KingdomHQ recorded Oct 25, 2026	11-50	15 contacts →
	Exact match “Kaisertech is a privately owned company that has traded since 1998.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
24	Rfcreations	Exact match	Cambridge, United KingdomHQ recorded Oct 25, 2026	1-10	13 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
25	Teradyne Limited	Exact match	London, United KingdomHQ recorded Oct 25, 2026	n/a	12 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 25, 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 “functional tester suppliers”. 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 93 functional tester suppliers based in the United Kingdom

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Functional tester suppliers based in the United Kingdom at a glance

As of Oct 25, 2026

35.9%Verified-email coverage

20.7Average contacts per company

11-50Median size (employees)

4.3%Largest-city concentration · Harrow

Oct 25, 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

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 93 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 “functional tester suppliers” 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 692 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 October 25, 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.

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 “functional tester suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many functional tester suppliers are there based in the United Kingdom?

RevenueBase identified 93 company matches for functional tester suppliers associated with the United Kingdom as of October 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?

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

Which city has the most functional tester suppliers?

Harrow leads with 4 company records, followed by London (4) and Poole (3).

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 692 professional contacts with verified work emails tracked across these 93 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 October 25, 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.