Company lists · Data refreshed September 2026

Top 25 Clinical diagnostic laboratories worldwide

Name: Clinical diagnostic laboratories worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 7,335 companies tracked

RevenueBase identified 7,335 clinical diagnostic laboratories worldwide as of September 2026 and tracks 379,932 professional contacts across them, including 85,067 with verified work emails and 0 with mobile numbers. Brazil is the largest market and Sao Paulo the largest hub.

This list covers clinical diagnostic laboratories worldwide, 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. Country and city lists for clinical diagnostic laboratories follow the table.

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

7,335Companies

379,932Contacts tracked

85,067Verified emails

0Mobile numbers

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The 25 largest clinical diagnostic laboratories worldwide

Ranked by team size

Top 25 of 7,335 clinical diagnostic laboratories worldwide, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to clinical diagnostic laboratories: 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	Labcorp	Indirect evidence	Burlington, NC, United StatesHQ checked Sep 16, 2026	10001+	38,427 contacts →
	Indirect evidence “Clear and confident health care decisions begin with questions.” Source: RevenueBase Database · checked Sep 16, 2026
2	Quest Diagnostics	Partial evidence	Secaucus, NJ, United StatesHQ checked Sep 16, 2026	10001+	27,884 contacts →
	Partial evidence “Quest Diagnostics (NYSE: DGX) empowers people to take action to improve health outcomes.” Source: RevenueBase Database · checked Sep 16, 2026
3	DASA	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 16, 2026	10001+	19,606 contacts →
	Indirect evidence “A Dasa é uma das maiores empresas de saúde do mundo, líder em medicina diagnóstica no Brasil.” Source: RevenueBase Database · checked Sep 16, 2026
4	Grupo Fleury	Indirect evidence	São Paulo, BrazilHQ checked Sep 16, 2026	10001+	10,468 contacts →
	Indirect evidence “O Grupo Fleury é reconhecido como uma referência de qualidade em medicina diagnóstica no país, com soluções completas, coordenação de cuidado centrada no indivíduo, capacidade de…” Source: RevenueBase Database · checked Sep 16, 2026
5	Beckman Coulter Diagnostics	Partial evidence	Brea, CA, United StatesHQ checked Sep 16, 2026	10001+	10,069 contacts →
	Partial evidence “A global leader in advanced diagnostics, Beckman Coulter has challenged convention to elevate the diagnostic laboratory’s role in improving patient health for more than 80 years.” Source: RevenueBase Database · checked Sep 16, 2026
6	Natera	Indirect evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	5,001-10,000	5,354 contacts →
	Indirect evidence “Natera™ is a global leader in cell-free DNA and precision medicine, dedicated to oncology, women’s health, and organ health.” Source: RevenueBase Database · checked Sep 16, 2026
7	DR LAL Pathlabs	Partial evidence	Gurgaon, IndiaHQ checked Sep 16, 2026	1,001-5,000	4,756 contacts →
	Partial evidence “Established in 1949, Dr Lal PathLabs today is the largest and most respected diagnostic service provider in the country.” Source: RevenueBase Database · checked Sep 16, 2026
8	Lancet Laboratories	Strong evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	5,001-10,000	4,365 contacts →
	Strong evidence “Lancet Laboratories SA is one of the leading pathology laboratories operating throughout South Africa, providing vital diagnostic and monitoring pathology services in the 9…” Source: RevenueBase Database · checked Sep 16, 2026
9	Lifelabs Medical Laboratory Services	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	5,001-10,000	3,469 contacts →
	Partial evidence “LifeLabs is Canada’s leading provider of laboratory diagnostic information and digital health connectivity systems, enabling patients and healthcare practitioners to diagnose…” Source: RevenueBase Database · checked Sep 16, 2026
10	Ampath Laboratories	Indirect evidence	Centurion, South AfricaHQ checked Sep 16, 2026	1,001-5,000	2,873 contacts →
	Indirect evidence “Ampath provides comprehensive support services to the incorporated Pathology Laboratory practices of Drs Du Buisson, Kramer, Swart, Bouwer Inc Our primary goal is to provide…” Source: RevenueBase Database · checked Sep 16, 2026
11	Thyrocare Technologies LTD	Indirect evidence	Navi Mumbai, IndiaHQ checked Sep 16, 2026	1,001-5,000	2,823 contacts →
	Indirect evidence “Why is Thyrocare more than just a workplace?” Source: RevenueBase Database · checked Sep 16, 2026
12	Metropolis Healthcare	Indirect evidence	Behind Glaxo, IndiaHQ checked Sep 16, 2026	1,001-5,000	2,807 contacts →
	Indirect evidence “We believe that every human being deserves to know the truth about their inner health.” Source: RevenueBase Database · checked Sep 16, 2026
13	Arup Laboratories	Strong evidence	Salt Lake City, UT, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,768 contacts →
	Strong evidence “ARUP Laboratories is a national clinical and anatomic pathology reference laboratory and a worldwide leader in innovative laboratory research and development.” Source: RevenueBase Database · checked Sep 16, 2026
14	Myriad Genetics	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,718 contacts →
	Partial evidence “Myriad Genetics is a leading molecular diagnostic testing and precision medicine company dedicated to advancing health and well-being for all.” Source: RevenueBase Database · checked Sep 16, 2026
15	Unilabs	Strong evidence	Geneva, SwitzerlandHQ checked Sep 16, 2026	10001+	2,350 contacts →
	Strong evidence “We are one of Europe’s leading suppliers of clinical laboratory testing and medical diagnostic imaging services to private and public healthcare providers, local governments…” Source: RevenueBase Database · checked Sep 16, 2026
16	Pathcare	Strong evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	1,001-5,000	2,127 contacts →
	Strong evidence “PathCare Laboratories PathCare is a network of pathology laboratories that provide testing of specimens, primarily for medical diagnostic purposes.” Source: RevenueBase Database · checked Sep 16, 2026
17	Biogroup	Indirect evidence	St.-ouen, FranceHQ checked Sep 16, 2026	10001+	1,980 contacts →
	Indirect evidence “Premier groupement de laboratoires détenu et dirigé exclusivement par des biologistes, dont la connaissance métier et le professionnalisme constituent sa force.” Source: RevenueBase Database · checked Sep 16, 2026
18	Transasia Bio-Medicals LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 16, 2026	1,001-5,000	1,933 contacts →
	Indirect evidence “Incepted in the year 1979, Transasia Bio-Medicals Ltd, is headquartered in Mumbai, India.” Source: RevenueBase Database · checked Sep 16, 2026
19	Cerballiance	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 16, 2026	5,001-10,000	1,696 contacts →
	Indirect evidence “Cerballiance est un réseau de Laboratoires de Biologie Médicale implantés en France et sur l’Ile de la Réunion.” Source: RevenueBase Database · checked Sep 16, 2026
20	Dynacare	Indirect evidence	Brampton, ON, CanadaHQ checked Sep 16, 2026	1,001-5,000	1,652 contacts →
	Indirect evidence “Welcome to Dynacare, the leading provider of comprehensive health and wellness solutions in Canada.” Source: RevenueBase Database · checked Sep 16, 2026
21	Bioreference	Indirect evidence	Elmwood Park, NJ, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,610 contacts →
	Indirect evidence “For more than four decades, BioReference has built a legacy based on scientific excellence, innovation and world-class service in laboratory testing solutions.” Source: RevenueBase Database · checked Sep 16, 2026
22	Idime S.A	Partial evidence	Bogotá, ColombiaHQ checked Sep 16, 2026	5,001-10,000	1,556 contacts →
	Partial evidence “Somos una organización dedicada a la prestación de servicios de apoyo diagnóstico por medio de imágenes, laboratorio clínico y consulta externa, servicios en donde nos…” Source: RevenueBase Database · checked Sep 16, 2026
23	Clinical Pathology Laboratories	Strong evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,528 contacts →
	Strong evidence “Clinical Pathology Laboratories (CPL) is a medically-led company dating back to 1948.” Source: RevenueBase Database · checked Sep 16, 2026
24	Inhealth	Partial evidence	High Wycombe, United KingdomHQ checked Sep 16, 2026	1,001-5,000	1,421 contacts →
	Partial evidence “InHealth is the UK’s largest specialist provider of diagnostic and healthcare solutions.” Source: RevenueBase Database · checked Sep 16, 2026
25	Examone, A Quest Diagnostics Company	Indirect evidence	Lenexa, KS, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,369 contacts →
	Indirect evidence “ExamOne has provided a robust portfolio of laboratory, paramedical and data solutions since 1972, giving it a great deal of understanding about the needs of life insurance and…” 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: clinical diagnostic laboratories. 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 clinical diagnostic laboratories.
Partial evidence: Its own public description names part of clinical diagnostic laboratories, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clinical diagnostic laboratories. 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 7,335 clinical diagnostic laboratories worldwide

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Clinical diagnostic laboratories worldwide at a glance

As of Sep 16, 2026

22.4%Verified-email coverage

51.8Average contacts per company

11-50Median size (employees)

1.7%Largest-city concentration · Sao Paulo

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

2,409

11-50

2,648

51-200

1,336

201-500

495

501-1,000

169

1,001-5,000

165

5,001-10,000

10001+

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 clinical diagnostic laboratories, 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.
Coverage: 32 countries, largest first: Brazil, the United States, India, Italy, Mexico, Germany, Argentina, France, Colombia, Spain and 22 more. Country and city lists for clinical diagnostic laboratories are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “clinical diagnostic laboratories”. 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 clinical diagnostic laboratories), 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 clinical diagnostic laboratories, and records with no verified work email.
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, 85,067 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.

Clinical diagnostic laboratories by location

39 lists · largest first

Every Clinical diagnostic laboratories list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 clinical diagnostic laboratories, 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 clinical diagnostic laboratories are there worldwide?

RevenueBase identified 7,335 clinical diagnostic laboratories worldwide 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?

Labcorp, headquartered in Burlington, tops this list with the largest team on record.

Which country has the most clinical diagnostic laboratories?

Brazil leads with 1,888 companies, followed by the United States (1,362) and India (1,119). Every clinical diagnostic laboratories list by country and city is linked on this page.

Which city has the most clinical diagnostic laboratories?

Sao Paulo leads with 124 headquartered companies, followed by New Delhi (88) and Mumbai (70).

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 85,067 verified decision-maker contacts tracked across these 7,335 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.