Company lists · Data refreshed September 2026
Top 25 Contaminant testing services worldwide
RevenueBase identified 5,305 contaminant testing services worldwide as of September 2026 and tracks 172,821 professional contacts across them, including 36,377 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers contaminant testing services 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 19, 2026. Country and city lists for contaminant testing services 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.
The 25 largest contaminant testing services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 48,455 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 11,653 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 9,234 contacts → | ||||
Partial evidence “A global leader in testing, ALS provides comprehensive testing solutions to clients in a wide range of industries around the world.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 3,095 contacts → | ||||
Indirect evidence “At Hach, we ensure water quality for people around the world, and every associate plays a vital role in that mission.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 2,228 contacts → | ||||
Indirect evidence “Pace® Science and Technology Company makes the world a safer, healthier place.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,638 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,549 contacts → | ||||
Partial evidence “QIMA is more than a testing, inspection, certification, and compliance company: We are on a mission to offer clients smart solutions to make products consumers can trust.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,071 contacts → | ||||
Indirect evidence “Since 1979, AGAT Laboratories has been empowering clients with trustworthy data and unmatched client relations.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 956 contacts → | ||||
Indirect evidence “Alliance is a new kind of environmental services company-powered by innovation, focused on service, and committed to client success.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 775 contacts → | ||||
Partial evidence “Nelson Labs is a global leader in microbiological and analytical chemistry testing and advisory services for the medical device and pharmaceutical industries.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 761 contacts → | ||||
Indirect evidence “AGQ Labs is one of the world's leading analytic laboratories and technological centers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 738 contacts → | ||||
Partial evidence “We are committed to strengthening safety systems with the most reliable Testing and Auditing Solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 719 contacts → | ||||
Partial evidence “As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 651 contacts → | ||||
Partial evidence “IEH is an international lab & consulting services company, offering a comprehensive portfolio of lab testing services and consultation across multiple industries.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 596 contacts → | ||||
Indirect evidence “Maxxam is a leading North American provider of analytical services and solutions to the energy, environmental, food, industrial hygiene and DNA industries.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 585 contacts → | ||||
Indirect evidence “Leader des prestations analytiques environnementales et agroalimentaires accrédité COFRAC, agréé par le Ministère de la santé Votre environnement et votre santé sont nos priorités.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 494 contacts → | ||||
Indirect evidence “Companies of all sizes partner with Microbac to test the quality, safety, and performance of their products and operations.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 483 contacts → | ||||
Partial evidence “Overview Particle Measuring Systems sets the standard for contamination monitoring.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 482 contacts → | ||||
Indirect evidence “J.S.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 451 contacts → | ||||
Indirect evidence “As part of Certified Group, Food Safety Net Services (FSNS) and Certified Laboratories partner with customers to deliver innovative scientific solutions and expertise – So The…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 450 contacts → | ||||
Indirect evidence “Activation Laboratories Ltd.(Actlabs) is a Canadian, privately owned company, founded in 1987 with over 15 laboratories in 6 countries around the world.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 442 contacts → | ||||
Partial evidence “SPL is a leading provider of compliance and testing services for Environmental, Energy, and other end markets.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 403 contacts → | ||||
Indirect evidence “Lifeanalytics: dalle analisi chimiche e microbiologiche alla consulenza e formazione Sosteniamo i nostri Clienti nell’interpretazione e nell’implementazione delle normative…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 385 contacts → | ||||
Indirect evidence “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®.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 371 contacts → | ||||
Indirect evidence “PROVIDING COMPANIES WITH ANALYTICAL SERVICES FOR OVER 40 YEARS NEOTRON is a GLOBAL PLAYER in the market of analysis and consulting services on food products, supplements…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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: contaminant testing services. 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 contaminant testing services.
- Partial evidence
- Its own public description names part of contaminant testing services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name contaminant testing services. 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 5,305 contaminant testing services worldwide
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Contaminant testing services worldwide at a glance
As of Sep 19, 2026Companies by employee count
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 contaminant testing services, 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 contaminant testing services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “contaminant testing services”. 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 contaminant testing services), 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 contaminant testing services, 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, 36,377 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 19, 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.
Contaminant testing services by location
20 lists · largest firstEvery Contaminant testing services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Contaminant testing services based in the United States1,160
- Contaminant testing services based in Brazil429
- Contaminant testing services based in India415
- Contaminant testing services based in Italy341
- Contaminant testing services based in Germany200
- Contaminant testing services based in France158
- Contaminant testing services based in Spain158
- Contaminant testing services based in the United Kingdom131
- Contaminant testing services based in Canada116
- Contaminant testing services based in Mexico113
- Contaminant testing services based in Colombia108
- Contaminant testing services based in Türkiye106
- Contaminant testing services based in Argentina86
- Contaminant testing services based in Australia84
- Contaminant testing services based in South Africa71
- Contaminant testing services based in the Netherlands57
- Contaminant testing services based in Chile45
- Contaminant testing services based in Greece32
- Contaminant testing services based in Switzerland32
- Contaminant testing services based in Belgium26
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 contaminant testing services, 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 contaminant testing services are there worldwide?
RevenueBase identified 5,305 contaminant testing services 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?
Agilent Technologies, headquartered in Santa Clara, tops this list with the largest team on record.
Which country has the most contaminant testing services?
The United States leads with 1,160 companies, followed by Brazil (429) and India (415). Every contaminant testing services list by country and city is linked on this page.
Which city has the most contaminant testing services?
Sao Paulo leads with 34 headquartered companies, followed by Bogota (28) and Hyderabad (27).
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 36,377 verified decision-maker contacts tracked across these 5,305 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 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 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.