Company lists · Data refreshed September 2026

Top 25 Laboratory testing services for trials worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 7,845 companies tracked

RevenueBase identified 7,845 laboratory testing services for trials worldwide as of September 2026 and tracks 328,417 professional contacts across them, including 81,652 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers laboratory testing services for trials 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 for trials 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

7,845Companies

328,417Contacts tracked

81,652Verified emails

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The 25 largest laboratory testing services for trials worldwide

Ranked by team size

Top 25 of 7,845 laboratory testing services for trials 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 for trials: 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 20, 2026	10001+	38,427 contacts →
	Indirect evidence “Clear and confident health care decisions begin with questions.” Source: RevenueBase Database · checked Sep 20, 2026
2	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
3	PPD	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 20, 2026	10001+	20,530 contacts →
	Indirect evidence “The PPD™ clinical research business of Thermo Fisher Scientific, the world leader in serving science, enables customers to accelerate innovation and drug development through…” Source: RevenueBase Database · checked Sep 20, 2026
4	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
5	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
6	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
7	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
8	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
9	Premier Research	Indirect evidence	Morrisville, NC, United StatesHQ checked Sep 20, 2026	1,001-5,000	2,584 contacts →
	Indirect evidence “Premier Research International LLC (Premier) is a global leader in clinical research and consulting services with expertise in driving an efficient and effective path to market…” Source: RevenueBase Database · checked Sep 20, 2026
10	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
11	Neogenomics Laboratories	Indirect evidence	Fort Myers, FL, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,678 contacts →
	Indirect evidence “Our vision: A world where every cancer treatment decision is as personal as the patient.” Source: RevenueBase Database · checked Sep 20, 2026
12	Eurofins Lancaster Laboratories	Partial evidence	Lancaster, PA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,638 contacts →
	Partial evidence “Eurofins Lancaster Laboratories is one of the largest commercial contract laboratories in the world providing comprehensive laboratory services in the pharmaceutical…” Source: RevenueBase Database · checked Sep 20, 2026
13	Cliantha Research Limited	Partial evidence	Ahmedabad, IndiaHQ checked Sep 20, 2026	1,001-5,000	1,612 contacts →
	Partial evidence “Cliantha Research, full-service clinical research organization (CRO), provides comprehensive and integrated offerings in Early Phase (BA/BE and Phase I) trials, Late Phase (Phase…” Source: RevenueBase Database · checked Sep 20, 2026
14	Bioreference	Strong evidence	Elmwood Park, NJ, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,610 contacts →
	Strong 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 20, 2026
15	Clinical Pathology Laboratories	Partial evidence	Austin, TX, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,528 contacts →
	Partial evidence “Clinical Pathology Laboratories (CPL) is a medically-led company dating back to 1948.” Source: RevenueBase Database · checked Sep 20, 2026
16	Iqvia Laboratories	Partial evidence	United StatesHQ checked Sep 20, 2026	5,001-10,000	1,400 contacts →
	Partial evidence “As a leading global drug discovery and development laboratory services organization, IQVIA Laboratories provides a broad range of central laboratory and specialty biomarker…” Source: RevenueBase Database · checked Sep 20, 2026
17	Examone, A Quest Diagnostics Company	Partial evidence	Lenexa, KS, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,369 contacts →
	Partial 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 20, 2026
18	Veeda Lifesciences	Partial evidence	Ahmedabad, IndiaHQ checked Sep 20, 2026	501-1,000	1,320 contacts →
	Partial evidence “We partner with innovator and generic companies using our high-quality infrastructure and a global network of clinical trial sites, to launch novel therapies and new products for…” Source: RevenueBase Database · checked Sep 20, 2026
19	PT Prodia Widyahusada TBK	Partial evidence	Jakarta Pusat, IndonesiaHQ checked Sep 20, 2026	1,001-5,000	1,270 contacts →
	Partial evidence “Prodia Clinical Laboratory was established in Solo on May 7th, 1973 by a number of pharmacy-based scientists.” Source: RevenueBase Database · checked Sep 20, 2026
20	Vimta Labs LTD	Indirect evidence	Hyderabad, IndiaHQ checked Sep 20, 2026	1,001-5,000	1,239 contacts →
	Indirect evidence “Founded in 1984 with headquarters in Hyderabad, India, VIMTA LABS LTD.” Source: RevenueBase Database · checked Sep 20, 2026
21	Lambda Therapeutic Research	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 20, 2026	1,001-5,000	1,235 contacts →
	Indirect evidence “Lambda Therapeutic Research is a leading full-service Global Clinical Research Organization (CRO) headquartered in Ahmedabad (India), with facilities and operations in Mehsana…” Source: RevenueBase Database · checked Sep 20, 2026
22	Sonora Quest Laboratories Laboratory Sciences Of Arizona	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,222 contacts →
	Partial evidence “Sonora Quest Laboratories, a subsidiary of Laboratory Sciences of Arizona, is an Arizona-based joint venture between Banner Health and Quest Diagnostics (NYSE: DGX) that makes up…” Source: RevenueBase Database · checked Sep 20, 2026
23	Perceptive INC	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1,001-5,000	1,197 contacts →
	Indirect evidence “Expanding on their combined 50-year history, Perceptive provides best-in-class specialist support to global pharmaceutical, biotech, and clinical research organizations, spanning…” Source: RevenueBase Database · checked Sep 20, 2026
24	Chughtai LAB	Indirect evidence	Lahore, PakistanHQ checked Sep 20, 2026	1,001-5,000	1,173 contacts →
	Indirect evidence “Established in 1983, Chughtai Lab is the leading diagnostic lab in Pakistan.” Source: RevenueBase Database · checked Sep 20, 2026
25	CTI Clinical Trial And Consulting Services	Partial evidence	Covington, KY, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,043 contacts →
	Partial evidence “CTI Clinical Trial and Consulting Services is a global, privately held, research service organization, delivering a complete spectrum of clinical trial and consulting services…” 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 for trials. 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 for trials.
Partial evidence: Its own public description names part of laboratory testing services for trials, 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 for trials. 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 7,845 laboratory testing services for trials worldwide

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Laboratory testing services for trials worldwide at a glance

As of Sep 20, 2026

24.9%Verified-email coverage

41.9Average contacts per company

11-50Median size (employees)

0.9%Largest-city concentration · Sao Paulo

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

2,791

11-50

2,857

51-200

1,334

201-500

460

501-1,000

151

1,001-5,000

143

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 for trials, 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 for trials are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “laboratory testing services for trials”. 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 for trials), 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 for trials, 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, 81,652 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 for trials by location

30 lists · largest first

Every Laboratory testing services for trials 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 for trials, 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 for trials are there worldwide?

RevenueBase identified 7,845 laboratory testing services for trials 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 laboratory testing services for trials?

The United States leads with 1,846 companies, followed by Brazil (1,287) and India (747). Every laboratory testing services for trials list by country and city is linked on this page.

Which city has the most laboratory testing services for trials?

Sao Paulo leads with 72 headquartered companies, followed by Hyderabad (67) and Ahmedabad (41).

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 81,652 verified decision-maker contacts tracked across these 7,845 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.