Company lists · Data refreshed September 2026

Top 25 Drug testing laboratories worldwide

RevenueBase identified 4,187 company matches for drug testing laboratories worldwide as of September 2026 and tracks 191,732 professional contacts across them, including 40,396 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for drug testing laboratories worldwide, 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 September 19, 2026. Country and city lists for drug testing laboratories follow the table.

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 Sep 19, 2026 How this list was built
4,187Companies
191,732Contacts tracked
40,396Verified emails
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The 25 largest drug testing laboratories worldwide

Ranked by team size
Top 25 of 4,187 company matches for drug testing laboratories worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBurlington, NC, United StatesHQ recorded Sep 19, 202610001+38,427 contacts →

Exact match

“Clear and confident health care decisions begin with questions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchSecaucus, NJ, United StatesHQ recorded Sep 19, 202610001+27,884 contacts →

Exact match

“Quest Diagnostics (NYSE: DGX) empowers people to take action to improve health outcomes.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchLuxembourgHQ recorded Sep 19, 202610001+11,653 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchToronto, ON, CanadaHQ recorded Sep 19, 20265,001-10,0003,469 contacts →

Exact match

“LifeLabs is Canada’s leading provider of laboratory diagnostic information and digital health connectivity systems, enabling patients and healthcare practitioners to diagnose…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchBehind Glaxo, IndiaHQ recorded Sep 19, 20261,001-5,0002,807 contacts →

Exact match

“We believe that every human being deserves to know the truth about their inner health.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchCape Town, South AfricaHQ recorded Sep 19, 20261,001-5,0002,127 contacts →

Exact match

“PathCare Laboratories PathCare is a network of pathology laboratories that provide testing of specimens, primarily for medical diagnostic purposes.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchLancaster, PA, United StatesHQ recorded Sep 19, 20261,001-5,0001,638 contacts →

Exact match

“Eurofins Lancaster Laboratories is one of the largest commercial contract laboratories in the world providing comprehensive laboratory services in the pharmaceutical…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchElmwood Park, NJ, United StatesHQ recorded Sep 19, 20261,001-5,0001,610 contacts →

Exact match

“For more than four decades, BioReference has built a legacy based on scientific excellence, innovation and world-class service in laboratory testing solutions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchAustin, TX, United StatesHQ recorded Sep 19, 20261,001-5,0001,528 contacts →

Exact match

“Clinical Pathology Laboratories (CPL) is a medically-led company dating back to 1948.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchLenexa, KS, United StatesHQ recorded Sep 19, 20261,001-5,0001,369 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchJakarta Pusat, IndonesiaHQ recorded Sep 19, 20261,001-5,0001,270 contacts →

Exact match

“Prodia Clinical Laboratory was established in Solo on May 7th, 1973 by a number of pharmacy-based scientists.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchPhoenix, AZ, United StatesHQ recorded Sep 19, 20261,001-5,0001,222 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchLahore, PakistanHQ recorded Sep 19, 20261,001-5,0001,173 contacts →

Exact match

“Established in 1983, Chughtai Lab is the leading diagnostic lab in Pakistan.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchBowen Hills, AustraliaHQ recorded Sep 19, 20261,001-5,000995 contacts →

Exact match

“Sullivan Nicolaides Pathology is one of Australia’s largest and most respected diagnostic testing laboratories, regarded for our expertise in esoteric as much as routine testing.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchKraków, PolandHQ recorded Sep 19, 20265,001-10,000954 contacts →

Exact match

“Diagnostyka to więcej dla zdrowia.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchChennai, IndiaHQ recorded Sep 19, 2026501-1,000926 contacts →

Exact match

“Neuberg Diagnostics, headquartered in Chennai, is one of India’s leading diagnostic service providers, with its presence in India, UAE, South Africa and USA.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchUnited StatesHQ recorded Sep 19, 20265,001-10,000918 contacts →

Exact match

“Alberta Precision Laboratories (APL) is a wholly-owned subsidiary of Alberta Health Services, delivering high-quality, responsive diagnostic lab services across our healthcare…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchChennai, IndiaHQ recorded Sep 19, 20261,001-5,000865 contacts →

Exact match

“Apollo Diagnostics is part of the Apollo Health and Lifestyle Limited services brought to you by the illustrious Apollo Group.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchHouston, TX, United StatesHQ recorded Sep 19, 20261,001-5,000834 contacts →

Exact match

“DISA has been providing full-service employee screening solutions since 1987.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchBogota, ColombiaHQ recorded Sep 19, 2026501-1,000748 contacts →

Exact match

“Aliado estratégico para empresas e instituciones de salud en Colombia |+80 sedes en el país | Red de laboratorios clínicos #1 en Europa | Estándares internacionales de calidad…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchSanto Domingo Oeste., Dominican RepublicHQ recorded Sep 19, 20261,001-5,000731 contacts →

Exact match

“Referencia Laboratorio Clínico, empresa dedicada al servicio de la salud, tiene como objetivo la obtención de un resultado de análisis clínico confiable, preciso y oportuno…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchLyon, FranceHQ recorded Sep 19, 2026501-1,000701 contacts →

Exact match

“European leader in the sector of specialized medical pathology, Eurofins Biomnis carries out over analyses per day from a range of over 2,500 available tests, including…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchNashville, TN, United StatesHQ recorded Sep 19, 2026501-1,000690 contacts →

Exact match

“Founded in 1990, Aegis Sciences Corporation is a forensic toxicology and healthcare laboratory that provides science-driven drug testing and consulting services based in…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 2026501-1,000665 contacts →

Exact match

“Millennium Health is an accredited specialty laboratory with over 15 years of experience delivering timely, accurate, clinically-actionable information through our nationwide…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchSanto Domingo, Dominican RepublicHQ recorded Sep 19, 20261,001-5,000657 contacts →

Exact match

“Por más de 60 años, en Amadita Laboratorio Clínico nos hemos dedicado a mejorar la salud y el bienestar en la República Dominicana, sirviendo como un ancla de la precisión médica.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 4,187 drug testing laboratories worldwide

See the full list, filter by size, metro and specialty, and access 40,396 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Drug testing laboratories worldwide at a glance

As of Sep 19, 2026
21.1%Verified-email coverage
45.8Average contacts per company
11-50Median size (employees)
0.9%Largest-city concentration · Sao Paulo
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
1,580
11-50
1,491
51-200
683
201-500
224
501-1,000
82
1,001-5,000
67
5,001-10,000
9
10001+
18

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for drug testing laboratories are linked below.
What qualifies
Company records worldwide whose business descriptions match “drug testing laboratories” 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. 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 40,396 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 September 19, 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.

Drug testing laboratories by location

13 lists · largest first

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

Countries

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 “drug testing laboratories”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many drug testing laboratories are there worldwide?

RevenueBase identified 4,187 company matches for drug testing laboratories worldwide as of September 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?

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

Which country has the most drug testing laboratories?

The United States leads with 1,147 companies, followed by Brazil (876) and India (296). Every drug testing laboratories list by country and city is linked on this page.

Which city has the most drug testing laboratories?

Sao Paulo leads with 37 company records, followed by Houston (23) and New Delhi (23).

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 40,396 professional contacts with verified work emails tracked across these 4,187 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 September 19, 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.