Company lists · Data refreshed September 2026

Top 25 Medical laboratory testing companies based in the United Kingdom

Name: Medical laboratory testing companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 212 companies tracked

RevenueBase identified 212 medical laboratory testing companies headquartered in the United Kingdom as of September 2026 and tracks 7,878 professional contacts across them, including 2,011 with verified work emails. London is the largest hub.

This list covers medical laboratory testing companies 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 17, 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 17, 2026 86% judged on-target in blind review

212Companies

7,878Contacts tracked

2,011Verified emails

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The 25 largest medical laboratory testing companies based in the United Kingdom

Ranked by team size

Top 25 of 212 medical laboratory testing companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to medical laboratory testing companies: 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	Inhealth	Indirect evidence	High Wycombe, United KingdomHQ checked Sep 17, 2026	1,001-5,000	1,421 contacts →
	Indirect evidence “InHealth is the UK’s largest specialist provider of diagnostic and healthcare solutions.” Source: RevenueBase Database · checked Sep 17, 2026
2	Health Services Laboratories	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	449 contacts →
	Partial evidence “Health Services Laboratories is a progressive partnership between The Doctors Laboratory, Royal Free London NHS Foundation Trust (the Royal Free London) and University College…” Source: RevenueBase Database · checked Sep 17, 2026
3	Viapath	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	243 contacts →
	Indirect evidence “Synnovis (formerly Viapath) is a partnership between SYNLAB UK & Ireland, Guy’s and St Thomas’ NHS Foundation Trust, and King’s College Hospital NHS Foundation Trust, performing…” Source: RevenueBase Database · checked Sep 17, 2026
4	Synlab UK & Ireland	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	236 contacts →
	Partial evidence “At SYNLAB, we provide laboratory, diagnostic and advisory services to a diverse range of sectors, from healthcare, wellness and veterinary, to food, family law and transport.” Source: RevenueBase Database · checked Sep 17, 2026
5	Randox Health	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	188 contacts →
	Partial evidence “With more than 40 years of health testing experience, we’re committed to helping you shape a healthier future.” Source: RevenueBase Database · checked Sep 17, 2026
6	Alphabiolabs	Indirect evidence	Warrington, United KingdomHQ checked Sep 17, 2026	51-200	96 contacts →
	Indirect evidence “At AlphaBiolabs, we help family law professionals, social workers and local authorities obtain the reliable, court-approved evidence they need to make critical safeguarding…” Source: RevenueBase Database · checked Sep 17, 2026
7	INUVI	Indirect evidence	Wokingham, United KingdomHQ checked Sep 17, 2026	201-500	91 contacts →
	Indirect evidence “At Inuvi, we are dedicated to fuelling healthier futures with every appointment and test we deliver.” Source: RevenueBase Database · checked Sep 17, 2026
8	Microsearch Laboratories LTD	Strong evidence	Halifax, United KingdomHQ checked Sep 17, 2026	201-500	83 contacts →
	Strong evidence “Microsearch Laboratories Ltd is a national food testing laboratory situated in Mytholmroyd at the heart of the beautiful Calder Valley.” Source: RevenueBase Database · checked Sep 17, 2026
9	DAM Health	Partial evidence	Liverpool, United KingdomHQ checked Sep 17, 2026	51-200	79 contacts →
	Partial evidence “We are the UK's leading provider of home & in clinic testing.” Source: RevenueBase Database · checked Sep 17, 2026
10	Alpha Laboratories LTD	Partial evidence	Eastleigh, United KingdomHQ checked Sep 17, 2026	51-200	75 contacts →
	Partial evidence “Alpha Laboratories is a family-run laboratory and diagnostic supplies business based in Eastleigh, Hampshire, UK and celebrated its 40th anniversary in 2015.” Source: RevenueBase Database · checked Sep 17, 2026
11	IPP	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	501-1,000	73 contacts →
	Partial evidence “Integrated Pathology Partnerships (iPP) is part of the wider Synlab group, a leading European clinical diagnostics company that provides laboratory services in 35 countries…” Source: RevenueBase Database · checked Sep 17, 2026
12	Normec Latis Scientific	Partial evidence	Crayford, United KingdomHQ checked Sep 17, 2026	51-200	72 contacts →
	Partial evidence “Normec Latis Scientific is a market leading provider of laboratory services for a wide range of industries.” Source: RevenueBase Database · checked Sep 17, 2026
13	Cambridge Nutritional Sciences PLC	Indirect evidence	Ely, United KingdomHQ checked Sep 17, 2026	51-200	66 contacts →
	Indirect evidence “Cambridge Nutritional Sciences promotes a personalised approach to health, specialising in a range of tests associated with food sensitivity and gut health.” Source: RevenueBase Database · checked Sep 17, 2026
14	Wickham Micro Limited	Strong evidence	Gosport, United KingdomHQ checked Sep 17, 2026	51-200	65 contacts →
	Strong evidence “Wickham Micro Ltd, A Cormica Lab, is a GMP / GLP compliant contract testing laboratory based in the UK.” Source: RevenueBase Database · checked Sep 17, 2026
15	CEMAS	Partial evidence	Wokingham, United KingdomHQ checked Sep 17, 2026	51-200	63 contacts →
	Partial evidence “CEMAS is an independent analytical laboratory with over 35 years’ experience supporting the agrochemical, biocide and life science sectors.” Source: RevenueBase Database · checked Sep 17, 2026
16	ONE Scientific A Tentamus Company	Strong evidence	Bristol, United KingdomHQ checked Sep 17, 2026	11-50	61 contacts →
	Strong evidence “One Scientific - A Tentamus Company is an independent food and water testing laboratory, UKAS accredited (No.” Source: RevenueBase Database · checked Sep 17, 2026
17	RDI	Indirect evidence	Surrey, United KingdomHQ checked Sep 17, 2026	51-200	55 contacts →
	Indirect evidence “RDi provides healthcare and pharma services solutions solving complex logistical and technological challenges for patient sample collection in order to improve efficiency and…” Source: RevenueBase Database · checked Sep 17, 2026
18	Labcorp Limited	Indirect evidence	Princes Risborough, United KingdomHQ checked Sep 17, 2026	11-50	48 contacts →
	Indirect evidence “We believe in harnessing science for human good.” Source: RevenueBase Database · checked Sep 17, 2026
19	Thriva	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	45 contacts →
	Indirect evidence “At Thriva, we’re on a mission to help millions of people worldwide become actively invested in their long term health.” Source: RevenueBase Database · checked Sep 17, 2026
20	Lifenity International Healthcare Services, UK	Partial evidence	Brentford, United KingdomHQ checked Sep 17, 2026	11-50	33 contacts →
	Partial evidence “Clinical Laboratory \| Genomic Laboratory \| Clinic \| Pharmacy” Source: RevenueBase Database · checked Sep 17, 2026
21	Analytical Services International	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	31 contacts →
	Indirect evidence “For over 30 years, ASI has worked internationally with leading Clinical Research Organisations and across the pharmaceutical sector in drug discovery and pharmacovigilance…” Source: RevenueBase Database · checked Sep 17, 2026
22	Apacor LTD	Partial evidence	Wokingham, United KingdomHQ checked Sep 17, 2026	51-200	30 contacts →
	Partial evidence “Apacor Limited is a global leader in diagnostic solutions, specialising in Parasitology, Microbiology & Environmental testing, delivering reliable, high-quality products to over…” Source: RevenueBase Database · checked Sep 17, 2026
23	Menarini Diagnostics UK	Indirect evidence	Winnersh, United KingdomHQ checked Sep 17, 2026	51-200	29 contacts →
	Indirect evidence “Menarini Diagnostics was established in the UK during 1987.” Source: RevenueBase Database · checked Sep 17, 2026
24	X-Lab	Indirect evidence	Leeds, United KingdomHQ checked Sep 17, 2026	51-200	29 contacts →
	Indirect evidence “Recently named the 14th largest supplier to the NHS by NHS Digital, X-Lab holds 95% share of the UK labs interoperability market.” Source: RevenueBase Database · checked Sep 17, 2026
25	QCMD	Partial evidence	Glasgow, United KingdomHQ checked Sep 17, 2026	11-50	28 contacts →
	Partial evidence “Quality Control for Molecular Diagnostics (QCMD) is one of the leading independent International External Quality Assessment / Proficiency Testing organisations.” Source: RevenueBase Database · checked Sep 17, 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: medical laboratory testing companies. 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 medical laboratory testing companies.
Partial evidence: Its own public description names part of medical laboratory testing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name medical laboratory testing companies. 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 212 medical laboratory testing companies based in the United Kingdom

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Medical laboratory testing companies based in the United Kingdom at a glance

As of Sep 17, 2026

25.5%Verified-email coverage

37.2Average contacts per company

11-50Median size (employees)

20.8%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 212 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 medical laboratory testing companies, 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 “medical laboratory testing companies”. 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 medical laboratory testing companies), 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 medical laboratory testing companies, 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, 2,011 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 17, 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.

Medical laboratory testing companies by metro

Medical laboratory testing companies in London44

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 medical laboratory testing companies, 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 medical laboratory testing companies are there based in the United Kingdom?

RevenueBase identified 212 medical laboratory testing companies 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?

Inhealth, headquartered in High Wycombe, tops this list with the largest team on record.

Which city has the most medical laboratory testing companies?

London leads with 44 headquartered companies, followed by Manchester (9) and Cambridge (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 2,011 verified decision-maker contacts tracked across these 212 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 17, 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.