Company lists · Data refreshed September 2026
Top 25 Coal testing laboratories worldwide
RevenueBase identified 340 coal testing laboratories worldwide as of September 2026 and tracks 9,996 professional contacts across them, including 2,619 with verified work emails. The United States is the largest market and Middelburg the largest hub.
This list covers coal testing laboratories 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 coal testing laboratories 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 coal testing laboratories worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,239 contacts → | ||||
Indirect evidence “Alfred H Knight is a leading provider of inspection, analytical and technical consultancy services for the metals, minerals, solid fuels and agricultural industries.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,071 contacts → | ||||
Partial 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. | |||||
| 3 | 719 contacts → | ||||
Strong 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. | |||||
| 4 | 450 contacts → | ||||
Partial 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. | |||||
| 5 | 227 contacts → | ||||
Indirect evidence “Metal Power provides a comprehensive range of products and services to meet the analytical needs of metal industries.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 194 contacts → | ||||
Partial evidence “RJ Lee Group provides comprehensive laboratory testing and scientific consulting services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 177 contacts → | ||||
Partial evidence “ALS Arabia is a diversified testing services organization with its headquarters located in Dammam, Saudi Arabia.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 161 contacts → | ||||
Partial evidence “Nuestro laboratorio ofrece los servicios de muestreo y análisis fisicoquímico de aguas y suelos, análisis microbiológico, de comunidades biológicas y residuos peligrosos, a…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 156 contacts → | ||||
Indirect evidence “Spectro Analytical Labs came into existence in the year 1995 and since then it has kept itself on the track of perpetual growth and development.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 154 contacts → | ||||
Indirect evidence “Alex Stewart International is a leading worldwide supervision, inspection, and analysis.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 130 contacts → | ||||
Partial evidence “Envirolab Group offers a wide array of environment testing and analytical services to support investigations of inorganic and organic contaminants and pollutants.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 130 contacts → | ||||
Indirect evidence “Shiva Analyticals (India) Pvt Ltd, Part of the Cotecna Group, Hoskote, Bangalore Since 1994, Shiva Analyticals has been providing expert solutions to many companies in India and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 113 contacts → | ||||
Partial evidence “Founded in 1952, Energy Laboratories, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 104 contacts → | ||||
Indirect evidence “Therapeutics Chemical Research Corporation is an accredited organization from 1950 in the field of third party inspection undertaking pre-shipment/ shipment inspections involving…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 79 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 79 contacts → | ||||
Indirect evidence “Somos ALS, una empresa dedicada a prestar servicios de Ensayos y Análisis Técnicos bajo los mejores estándares de calidad del mercado.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 67 contacts → | ||||
Indirect evidence “RC Inspection is an independent inspection company operating in the field of ores, metals/minerals, concentrates, solid fuels, biomass commodities, fertilizers, oil, agricultural…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 64 contacts → | ||||
Partial evidence “A remarkable group of independent companies, specialized in the quality control of coal, cokes, biomass and recovery fuel, petroleum cokes, iron and manganese ore, ferroalloy’s…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 48 contacts → | ||||
Partial evidence “PES is an independent testing laboratory, specializing in mechanical, metallurgical, chemical and nondestructive testing and analysis.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 43 contacts → | ||||
Indirect evidence “Located in the San Francisco Bay Area (Pittsburg), McCampbell Analytical tests drinking water, effluent, soils, solids, hazardous waste, air, industrial materials and food for a…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 43 contacts → | ||||
Partial evidence “Somos un laboratorio de análisis ambientales e industriales de primer nivel, formada por un grupo de profesionales y técnicos de distintos rubros, con vasta experiencia en la…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 35 contacts → | ||||
Indirect evidence “Fibertec Environmental Services is a full service environmental analytical laboratory, specializing in environmental analysis, subsurface investigations, and natural gas analysis.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 34 contacts → | ||||
Indirect evidence “Keeping boilers running efficiently is critical.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 33 contacts → | ||||
Partial evidence “World class Testing and Inspection of Food,Water, Pharmaceutical Product, Ores and Mineral, Environmental Monitoring,Solid Fuel, Building Material, Fertilizer etc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 33 contacts → | ||||
Indirect evidence “Ssp - a Smithers company is gespecialiseerd in het inspecteren en bemonsteren van vaste brandstoffen, ferro-legeringen, mineralen en metalen.” 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: coal testing laboratories. 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 coal testing laboratories.
- Partial evidence
- Its own public description names part of coal testing laboratories, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name coal testing laboratories. 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 340 coal testing laboratories worldwide
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Coal testing laboratories 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 coal testing laboratories, 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 coal testing laboratories are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “coal testing laboratories”. 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 coal testing laboratories), 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 coal testing laboratories, 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, 2,619 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.
Coal testing laboratories by location
1 lists · largest firstEvery Coal 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 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 coal testing laboratories, 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 coal testing laboratories are there worldwide?
RevenueBase identified 340 coal testing laboratories 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?
Alfred H Knight, headquartered in Prescot, tops this list with the largest team on record.
Which country has the most coal testing laboratories?
The United States leads with 61 companies. Every coal testing laboratories list by country and city is linked on this page.
Which city has the most coal testing laboratories?
Middelburg leads with 5 headquartered companies, followed by Belo Horizonte (4) and Ahmedabad (3).
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 2,619 verified decision-maker contacts tracked across these 340 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.