Company lists · Data refreshed November 2026

Top 25 Lead testing and assessment firms worldwide

RevenueBase identified 2,511 company matches for lead testing and assessment firms worldwide as of November 2026 and tracks 73,385 professional contacts across them, including 18,450 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers company matches for lead testing and assessment firms 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 lead testing and assessment firms 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
2,511Companies
73,385Contacts tracked
18,450Verified emails
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The 25 largest lead testing and assessment firms worldwide

Ranked by team size
Top 25 of 2,511 company matches for lead testing and assessment firms 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 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
2Exact 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
3Exact 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
4Exact 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
5Exact 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
6Exact matchBurton Upon Trent, United KingdomHQ recorded Nov 6, 20261,001-5,000933 contacts →

Exact match

“SOCOTEC UK is a network of industry-leading experts we empower ambitious businesses at every stage of the asset lifecycle.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact 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
8Exact 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
9Exact 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
10Exact matchLake Forest Park, GA, United StatesHQ recorded Nov 6, 20261,001-5,000683 contacts →

Exact match

“IEH is an international lab & consulting services company, offering a comprehensive portfolio of lab testing services and consultation across multiple industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMississauga, AB, CanadaHQ recorded Nov 6, 20261,001-5,000626 contacts →

Exact match

“Maxxam is a leading North American provider of analytical services and solutions to the energy, environmental, food, industrial hygiene and DNA industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSaint-grégoire, FranceHQ recorded Nov 6, 2026501-1,000588 contacts →

Exact match

“ITGA, entreprise nationale fondée en 1994, dont le siège social est situé à Rennes, accompagne depuis 30 ans, tous les professionnels dans la résolution optimale de leurs…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchPittsburgh, OH, United StatesHQ recorded Nov 6, 2026501-1,000500 contacts →

Exact match

“Companies of all sizes partner with Microbac to test the quality, safety, and performance of their products and operations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026501-1,000490 contacts →

Exact match

“SPL is a leading provider of compliance and testing services for Environmental, Energy, and other end markets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchOderzo, ItalyHQ recorded Nov 6, 2026501-1,000391 contacts →

Exact match

“Lifeanalytics: dalle analisi chimiche e microbiologiche alla consulenza e formazione Sosteniamo i nostri Clienti nell’interpretazione e nell’implementazione delle normative…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSumaré, BrazilHQ recorded Nov 6, 2026201-500382 contacts →

Exact match

“Life Sciences Testing Group”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchChâteau-gontier, FranceHQ recorded Nov 6, 2026201-500370 contacts →

Exact match

“ADX Groupe, votre bureau d'études de l'existant - Réalisation de diagnostics immobiliers obligatoires lors de la transaction ou location des biens- Recherche d’amiante dans tous…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchCasanova Lonati, ItalyHQ recorded Nov 6, 20261,001-5,000366 contacts →

Exact match

“Laboratories that carry out analysis in different fields: environment, pharmaceutical, food, health and safety, agrochemicals and consumer product testing - Environmental…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchNîmes, FranceHQ recorded Nov 6, 2026201-500317 contacts →

Exact match

“Phytocontrol Group œuvre au quotidien à garantir la sécurité sanitaire des aliments et de l’environnement.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBangalore, IndiaHQ recorded Nov 6, 2026501-1,000309 contacts →

Exact match

“Eureka Analytical Services (Eureka) is a trusted provider of testing, inspection, and auditing services across food, agricultural commodities, feed, nutraceuticals…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSantiago, ChileHQ recorded Nov 6, 2026201-500254 contacts →

Exact match

“Con más de 25 años de experiencia, en ANAM somos líderes en monitoreos y análisis físicos, químicos y microbiológicos de matrices ambientales.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 202651-200248 contacts →

Exact match

“Established in as Africon, AssureCloud is Southern Africa’s largest and most comprehensive food safety, environmental, veterinary, and occupational hygiene laboratory group.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchCastellon, SpainHQ recorded Nov 6, 2026201-500244 contacts →

Exact match

“IPROMA is one of the leading companies in the fields of environmental laboratory analysis, technical advice and industrial hygiene.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBerlin, AZ, ItalyHQ recorded Nov 6, 20261,001-5,000243 contacts →

Exact match

“For more than a decade the Tentamus Group has been providing services to customers all over the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchWestborough, NY, United StatesHQ recorded Nov 6, 2026501-1,000243 contacts →

Exact match

“Since 1987, Alpha Analytical, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 2,511 lead testing and assessment firms worldwide

See the full list, filter by size, metro and specialty, and access 18,450 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Lead testing and assessment firms worldwide at a glance

As of Nov 6, 2026
25.1%Verified-email coverage
29.2Average contacts per company
11-50Median size (employees)
0.8%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,064
11-50
951
51-200
332
201-500
69
501-1,000
32
1,001-5,000
27
5,001-10,000
5
10001+
4

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 lead testing and assessment firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “lead testing and assessment firms” 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 18,450 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.

Lead testing and assessment firms by location

11 lists · largest first

Every Lead testing and assessment firms 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 “lead testing and assessment firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many lead testing and assessment firms are there worldwide?

RevenueBase identified 2,511 company matches for lead testing and assessment firms 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?

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

Which country has the most lead testing and assessment firms?

The United States leads with 764 companies, followed by Italy (167) and France (162). Every lead testing and assessment firms list by country and city is linked on this page.

Which city has the most lead testing and assessment firms?

New York leads with 19 company records, followed by Houston (13) and Sao Paulo (13).

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 18,450 professional contacts with verified work emails tracked across these 2,511 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.