Company lists · Data refreshed September 2026

Top 25 Toxicology testing services worldwide

RevenueBase identified 1,728 company matches for toxicology testing services worldwide as of September 2026 and tracks 41,716 professional contacts across them, including 12,094 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for toxicology testing services 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 22, 2026. Country and city lists for toxicology testing services 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 22, 2026 How this list was built
1,728Companies
41,716Contacts tracked
12,094Verified emails
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The 25 largest toxicology testing services worldwide

Ranked by team size
Top 25 of 1,728 company matches for toxicology testing services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 matchLuxembourgHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
3Exact matchCinnaminson, NJ, United StatesHQ recorded Sep 22, 2026501-1,000719 contacts →

Exact match

“As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchNashville, TN, United StatesHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
5Exact matchSan Diego, CA, United StatesHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
6Exact matchLenexa, KS, United StatesHQ recorded Sep 22, 2026501-1,000457 contacts →

Exact match

“CRL was originally founded as Enzyme Technologies in 1979 with our focus on clinical research and development.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchRochester, NY, United StatesHQ recorded Sep 22, 20261,001-5,000446 contacts →

Exact match

“ACM Global Laboratories, an affiliate of Rochester Regional Health in Rochester, New York, is a recognized leader global clinical trial testing services.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchHorsham, PA, United StatesHQ recorded Sep 22, 2026201-500411 contacts →

Exact match

“NMS Labs has been setting the standard for excellence in clinical toxicology and forensic testing-responding to the needs of healthcare providers, medical researchers, coroners…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchKitchener, ON, CanadaHQ recorded Sep 22, 2026201-500385 contacts →

Exact match

“As part of Certified Group, Labstat partners with customers to deliver innovative scientific solutions and expertise – So The World Can Trust In What It Consumes®.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchNorth Little Rock, AR, United StatesHQ recorded Sep 22, 2026501-1,000349 contacts →

Exact match

“Our laboratory service experts provide clients with precision testing support, innovative scientific approaches, and high-quality data that delivers a sense of certainty.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchGreenville, SC, United StatesHQ recorded Sep 22, 2026201-500343 contacts →

Exact match

“ARCpoint Labs is a trusted industry leader serving our communities with drug, alcohol, DNA, and clinical testing solutions.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchNorth Kingstown, RI, United StatesHQ recorded Sep 22, 2026201-500304 contacts →

Exact match

“For over 25 years, Dominion Diagnostics has been advancing patient care through trusted diagnostics as a premier urine drug testing and toxicology laboratory.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchMemphis, TN, United StatesHQ recorded Sep 22, 20261,001-5,000276 contacts →

Exact match

“AEL provides clinical information to aid customers throughout the Mid-South in the diagnosis, prevention and treatment of disease.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchSan Diego, CA, United StatesHQ recorded Sep 22, 2026501-1,000235 contacts →

Exact match

“Precision Diagnostics is the only U.S.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchMinneapolis, MN, United StatesHQ recorded Sep 22, 20261,001-5,000231 contacts →

Exact match

“Watch our video on the history and culture of Pace at https://goo.gl/L3ruD3 or get a more detailed look through our company brochure at https://goo.gl/feMDwU!”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchLenexa, KS, United StatesHQ recorded Sep 22, 2026501-1,000229 contacts →

Exact match

“Quest Diagnostics Workforce Health Solutions drug offers reliable workforce drug testing, an extensive collection site network, and personal service and support.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchNew Brighton, MN, United StatesHQ recorded Sep 22, 2026501-1,000215 contacts →

Exact match

“MEDTOX Laboratories contains a full-service clinical laboratory as well as a SAMHSA-certified drug testing laboratory.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchLins, BrazilHQ recorded Sep 22, 2026201-500215 contacts →

Exact match

“O Laboratório Sodré́ está há 45 anos no mercado.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchNorth Dumfries, ON, CanadaHQ recorded Sep 22, 2026201-500207 contacts →

Exact match

“As Canada’s ‘Fitness for Duty’ leader, DriverCheck’s top priority is the safety of your staff and workplace.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchPittsburgh, PA, United StatesHQ recorded Sep 22, 2026201-500194 contacts →

Exact match

“RJ Lee Group provides comprehensive laboratory testing and scientific consulting services.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchMacclesfield, United KingdomHQ recorded Sep 22, 202651-200192 contacts →

Exact match

“Founded in Cyprotex has grown to become an industry leader in in vitro and in silico ADME-Tox.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchChicago, IL, United StatesHQ recorded Sep 22, 202651-200188 contacts →

Exact match

“IITRI was founded in 1936 as the research arm of the Illinois Institute of Technology (IIT).”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchMahabubnagar, IndiaHQ recorded Sep 22, 2026201-500186 contacts →

Exact match

“Palamur Bioscience scientific team members are highly experienced in both field of specialization and quality systems like GLP / NABL.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchTumkur, IndiaHQ recorded Sep 22, 202651-200185 contacts →

Exact match

“We are a CPCSEA-Government of India approved Preclinical CRO involved in testing of pharmaceuticals, new chemicals, herbal derivatives, biotechnology products, cosmetics and…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchHicksville, NY, United StatesHQ recorded Sep 22, 2026201-500170 contacts →

Exact match

“Committed professionals with an original approach to laboratory medicine.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 1,728 toxicology testing services worldwide

See the full list, filter by size, metro and specialty, and access 12,094 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Toxicology testing services worldwide at a glance

As of Sep 22, 2026
29.0%Verified-email coverage
24.1Average contacts per company
11-50Median size (employees)
1.4%Largest-city concentration · Sao Paulo
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
778
11-50
580
51-200
259
201-500
57
501-1,000
22
1,001-5,000
21
10001+
5

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 toxicology testing services are linked below.
What qualifies
Company records worldwide whose business descriptions match “toxicology testing services” 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 12,094 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 22, 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.

Toxicology testing services by location

8 lists · largest first

Every Toxicology testing services 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 “toxicology testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many toxicology testing services are there worldwide?

RevenueBase identified 1,728 company matches for toxicology testing services 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?

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

Which country has the most toxicology testing services?

The United States leads with 740 companies, followed by Brazil (189) and India (112). Every toxicology testing services list by country and city is linked on this page.

Which city has the most toxicology testing services?

Sao Paulo leads with 24 company records, followed by San Diego (13) and Irvine (11).

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 12,094 professional contacts with verified work emails tracked across these 1,728 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 22, 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.