Company lists · Data refreshed November 2026

Top 25 Impurity testing services worldwide

RevenueBase identified 6,434 company matches for impurity testing services worldwide as of November 2026 and tracks 369,566 professional contacts across them, including 113,492 with verified work emails. The United States is the largest market and Hyderabad the largest hub.

This list covers company matches for impurity 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 November 6, 2026. Country and city lists for impurity 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 Nov 6, 2026 How this list was built
6,434Companies
369,566Contacts tracked
113,492Verified emails
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The 25 largest impurity testing services worldwide

Ranked by team size
Top 25 of 6,434 company matches for impurity testing services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchWaltham, MA, United StatesHQ recorded Nov 6, 202610001+75,914 contacts →

Exact match

“About Thermo Fisher Scientific Thermo Fisher Scientific Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSanta Clara, United StatesHQ recorded Nov 6, 202610001+48,766 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBurlington, NC, United StatesHQ recorded Nov 6, 202610001+40,243 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLuxembourgHQ recorded Nov 6, 202610001+12,649 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 · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBowen Hills, TX, AustraliaHQ recorded Nov 6, 202610001+10,555 contacts →

Exact match

“A global leader in testing, ALS provides comprehensive testing solutions to clients in a wide range of industries around the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMilford, MA, United StatesHQ recorded Nov 6, 202610001+10,325 contacts →

Exact match

“Waters Corporation (NYSE: WAT) is a global leader in life sciences and diagnostics, dedicated to accelerating the benefits of pioneering science through analytical technologies…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchFramingham, CA, United StatesHQ recorded Nov 6, 20261,001-5,0002,425 contacts →

Exact match

“SCIEX helps to improve the world we live in by enabling scientists and laboratory analysts to find answers to the complex analytical challenges they face.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMinneapolis, NC, United StatesHQ recorded Nov 6, 20261,001-5,0002,334 contacts →

Exact match

“Pace® Science and Technology Company makes the world a safer, healthier place.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCape Town, South AfricaHQ recorded Nov 6, 20261,001-5,0002,250 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchUk, United KingdomHQ recorded Nov 6, 20261,001-5,0001,999 contacts →

Exact match

“Clinisys acquired Orchard Software July 2025 (see press release https://tinyurl.com/clinisysnews)* Clinisys delivers over 45 years of laboratory informatics expertise – built…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchUnited StatesHQ recorded Nov 6, 20265,001-10,0001,845 contacts →

Exact match

“As a leading global drug discovery and development laboratory services organization, IQVIA Laboratories provides a broad range of central laboratory and specialty biomarker…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLancaster, PA, United StatesHQ recorded Nov 6, 20261,001-5,0001,676 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 · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAustin, TX, United StatesHQ recorded Nov 6, 20261,001-5,0001,630 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHyderabad, IndiaHQ recorded Nov 6, 20261,001-5,0001,395 contacts →

Exact match

“Founded in 1984 with headquarters in Hyderabad, India, VIMTA LABS LTD.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchPhoenix, AZ, United StatesHQ recorded Nov 6, 20261,001-5,0001,295 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 · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,0001,249 contacts →

Exact match

“LGC is a global leader in life sciences, diagnostics and analytical solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCalgary, QC, CanadaHQ recorded Nov 6, 20261,001-5,0001,126 contacts →

Exact match

“Since 1979, AGAT Laboratories has been empowering clients with trustworthy data and unmatched client relations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBowen Hills, AustraliaHQ recorded Nov 6, 20261,001-5,0001,062 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 · Nov 6, 2026 · View company records in RevenueBase
19Exact matchDurham, NC, United StatesHQ recorded Nov 6, 20261,001-5,000945 contacts →

Exact match

“BioAgilytix is a leading global contract research organization focused on supporting pharmaceutical and biotech partners in all phases of drug development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSeville, SpainHQ recorded Nov 6, 2026501-1,000827 contacts →

Exact match

“AGQ Labs is one of the world's leading analytic laboratories and technological centers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSanto Domingo Oeste., Dominican RepublicHQ recorded Nov 6, 20261,001-5,000823 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 · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSalt Lake City, United StatesHQ recorded Nov 6, 2026501-1,000807 contacts →

Exact match

“Nelson Labs is a global leader in microbiological and analytical chemistry testing and advisory services for the medical device and pharmaceutical industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMontreal, NS, CanadaHQ recorded Nov 6, 2026501-1,000780 contacts →

Exact match

“CellCarta is a leading global CRO laboratory to the biopharmaceutical and biotechnology industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNavi Mumbai, IndiaHQ recorded Nov 6, 20261,001-5,000774 contacts →

Exact match

“We are committed to strengthening safety systems with the most reliable Testing and Auditing Solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCinnaminson, NJ, United StatesHQ recorded Nov 6, 2026501-1,000766 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 · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 6,434 impurity testing services worldwide

See the full list, filter by size, metro and specialty, and access 113,492 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Impurity testing services worldwide at a glance

As of Nov 6, 2026
30.7%Verified-email coverage
57.4Average contacts per company
11-50Median size (employees)
1.1%Largest-city concentration · Hyderabad
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
2,281
11-50
2,582
51-200
992
201-500
271
501-1,000
104
1,001-5,000
89
5,001-10,000
12
10001+
22

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 impurity testing services are linked below.
What qualifies
Company records worldwide whose business descriptions match “impurity 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 113,492 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 November 6, 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.

Impurity testing services by location

32 lists · largest first

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

How many impurity testing services are there worldwide?

RevenueBase identified 6,434 company matches for impurity testing services worldwide as of November 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?

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

Which country has the most impurity testing services?

The United States leads with 1,092 companies, followed by India (665) and Brazil (655). Every impurity testing services list by country and city is linked on this page.

Which city has the most impurity testing services?

Hyderabad leads with 69 company records, followed by Sao Paulo (62) and Ahmedabad (37).

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 113,492 professional contacts with verified work emails tracked across these 6,434 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 November 6, 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.