Company lists · Data refreshed September 2026

Top 25 Laboratory testing services worldwide

Name: Laboratory testing services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 12,131 companies tracked

RevenueBase identified 12,131 laboratory testing services worldwide as of September 2026 and tracks 591,804 professional contacts across them, including 149,217 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers laboratory testing services 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 20, 2026. Country and city lists for laboratory testing services 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 20, 2026 86% judged on-target in blind review

12,131Companies

591,804Contacts tracked

149,217Verified emails

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The 25 largest laboratory testing services worldwide

Ranked by team size

Top 25 of 12,131 laboratory testing services worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to laboratory 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	Thermo Fisher Scientific	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 20, 2026	10001+	70,907 contacts →
	Indirect evidence “About Thermo Fisher Scientific Thermo Fisher Scientific Inc.” Source: RevenueBase Database · checked Sep 20, 2026
2	Agilent Technologies	Indirect evidence	Santa Clara, CA, United StatesHQ checked Sep 20, 2026	10001+	48,455 contacts →
	Indirect evidence “Agilent customers are finding new ways to treat cancer, ensure food, water, air, and medicine quality and safety, discover new drug treatments, research infectious diseases, and…” Source: RevenueBase Database · checked Sep 20, 2026
3	Labcorp	Indirect evidence	Burlington, NC, United StatesHQ checked Sep 20, 2026	10001+	38,427 contacts →
	Indirect evidence “Clear and confident health care decisions begin with questions.” Source: RevenueBase Database · checked Sep 20, 2026
4	Quest Diagnostics	Indirect evidence	Secaucus, NJ, United StatesHQ checked Sep 20, 2026	10001+	27,884 contacts →
	Indirect evidence “Quest Diagnostics (NYSE: DGX) empowers people to take action to improve health outcomes.” Source: RevenueBase Database · checked Sep 20, 2026
5	DASA	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 20, 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 20, 2026
6	Eurofins	Partial evidence	LuxembourgHQ checked Sep 20, 2026	10001+	11,653 contacts →
	Partial evidence “Since 1987, Eurofins has grown from one laboratory in Nantes, France to over staff across a network of independent companies in 59 countries, operating over 950 laboratories.” Source: RevenueBase Database · checked Sep 20, 2026
7	Beckman Coulter Diagnostics	Partial evidence	Brea, CA, United StatesHQ checked Sep 20, 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 20, 2026
8	ALS	Partial evidence	Bowen Hills, AustraliaHQ checked Sep 20, 2026	10001+	9,234 contacts →
	Partial evidence “A global leader in testing, ALS provides comprehensive testing solutions to clients in a wide range of industries around the world.” Source: RevenueBase Database · checked Sep 20, 2026
9	Waters Corporation	Indirect evidence	Milford, MA, United StatesHQ checked Sep 20, 2026	10001+	8,189 contacts →
	Indirect evidence “Waters Corporation (NYSE: WAT) is a global leader in life sciences and diagnostics, dedicated to accelerating the benefits of pioneering science through analytical technologies…” Source: RevenueBase Database · checked Sep 20, 2026
10	IDEXX	Indirect evidence	Westbrook, ME, United StatesHQ checked Sep 20, 2026	10001+	6,962 contacts →
	Indirect evidence “people, one global focus - enhancing the health and well-being of pets, people, and livestock We are passionate about what we do at IDEXX – and why wouldn’t we be?” Source: RevenueBase Database · checked Sep 20, 2026
11	DR LAL Pathlabs	Indirect evidence	Gurgaon, IndiaHQ checked Sep 20, 2026	1,001-5,000	4,756 contacts →
	Indirect 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 20, 2026
12	Lancet Laboratories	Partial evidence	Johannesburg, South AfricaHQ checked Sep 20, 2026	5,001-10,000	4,365 contacts →
	Partial 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 20, 2026
13	Quidelortho	Partial evidence	United StatesHQ checked Sep 20, 2026	5,001-10,000	3,581 contacts →
	Partial evidence “Bringing precision and passion in everything we do QuidelOrtho stands at the forefront of testing, tracking and disease analysis of health conditions ranging from HIV and…” Source: RevenueBase Database · checked Sep 20, 2026
14	Lifelabs Medical Laboratory Services	Partial evidence	Toronto, ON, CanadaHQ checked Sep 20, 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 20, 2026
15	Ampath Laboratories	Partial evidence	Centurion, South AfricaHQ checked Sep 20, 2026	1,001-5,000	2,873 contacts →
	Partial 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 20, 2026
16	Thyrocare Technologies LTD	Indirect evidence	Navi Mumbai, IndiaHQ checked Sep 20, 2026	1,001-5,000	2,823 contacts →
	Indirect evidence “Why is Thyrocare more than just a workplace?” Source: RevenueBase Database · checked Sep 20, 2026
17	Metropolis Healthcare	Indirect evidence	Behind Glaxo, IndiaHQ checked Sep 20, 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 20, 2026
18	Arup Laboratories	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 20, 2026	1,001-5,000	2,768 contacts →
	Partial 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 20, 2026
19	Unilabs	Strong evidence	Geneva, SwitzerlandHQ checked Sep 20, 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 20, 2026
20	Pace Analytical Services	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 20, 2026	1,001-5,000	2,228 contacts →
	Indirect evidence “Pace® Science and Technology Company makes the world a safer, healthier place.” Source: RevenueBase Database · checked Sep 20, 2026
21	Pathcare	Strong evidence	Cape Town, South AfricaHQ checked Sep 20, 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 20, 2026
22	Biogroup	Partial evidence	St.-ouen, FranceHQ checked Sep 20, 2026	10001+	1,980 contacts →
	Partial 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 20, 2026
23	Clinisys	Partial evidence	Uk, AZ, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,878 contacts →
	Partial evidence “Clinisys acquired Orchard Software July 2025 (see press release https://tinyurl.com/clinisysnews)* Clinisys delivers over 45 years of laboratory informatics expertise – built…” Source: RevenueBase Database · checked Sep 20, 2026
24	Lab-To-Lab Pardini	Indirect evidence	Vespasiano, BrazilHQ checked Sep 20, 2026	10001+	1,665 contacts →
	Indirect evidence “Entregar saúde para as pessoas e crescimento para o seu negócio: esse é o nosso propósito.” Source: RevenueBase Database · checked Sep 20, 2026
25	Dynacare	Indirect evidence	Brampton, ON, CanadaHQ checked Sep 20, 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 20, 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: laboratory 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 laboratory testing services.
Partial evidence: Its own public description names part of laboratory testing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name laboratory 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 12,131 laboratory testing services worldwide

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Laboratory testing services worldwide at a glance

As of Sep 20, 2026

25.2%Verified-email coverage

48.8Average contacts per company

11-50Median size (employees)

1.1%Largest-city concentration · Sao Paulo

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

4,179

11-50

4,476

51-200

2,086

201-500

734

501-1,000

251

1,001-5,000

226

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 laboratory 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.
Coverage: Every country. Country and city lists for laboratory testing services are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “laboratory 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 laboratory 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 laboratory testing services, 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, 149,217 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 20, 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.

Laboratory testing services by location

39 lists · largest first

Every Laboratory testing services 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 laboratory 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 laboratory testing services are there worldwide?

RevenueBase identified 12,131 laboratory testing services 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?

Thermo Fisher Scientific, headquartered in Waltham, tops this list with the largest team on record.

Which country has the most laboratory testing services?

The United States leads with 2,130 companies, followed by Brazil (2,081) and India (1,323). Every laboratory testing services list by country and city is linked on this page.

Which city has the most laboratory testing services?

Sao Paulo leads with 130 headquartered companies, followed by New Delhi (89) and Mumbai (68).

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 149,217 verified decision-maker contacts tracked across these 12,131 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 20, 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.