Company lists · Data refreshed September 2026
Top 25 Decontamination service providers worldwide
RevenueBase identified 2,704 decontamination service providers worldwide as of September 2026 and tracks 36,266 professional contacts across them, including 10,425 with verified work emails. The United States is the largest market and Houston the largest hub.
This list covers decontamination service providers 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 decontamination service providers 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 decontamination service providers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 8,924 contacts → | ||||
Indirect evidence “Clean Harbors is North America’s leading provider of environmental and industrial services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 484 contacts → | ||||
Indirect evidence “We are a company that provides industrial cleaning, maintenance and induatrial hygiene.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 428 contacts → | ||||
Indirect evidence “HEPACO is the premier environmental and emergency services company in the Eastern United States with coverage across 40+ regional offices.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 403 contacts → | ||||
Strong evidence “IHSS is committed to supporting and partnering our healthcare customers to provide a comprehensive range of tailored decontamination and sterilisation service solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 336 contacts → | ||||
Indirect evidence “CTEH, LLC's purpose is preparing for and responding to a company's or community’s worst day.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 277 contacts → | ||||
Indirect evidence “Sevenson Environmental Services, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 273 contacts → | ||||
Indirect evidence “Environmental Restoration LLC (ER) is 100% employee-owned and provides Environmental Site Remediation, Construction and Emergency Response services for hazardous waste materials…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 257 contacts → | ||||
Indirect evidence “With over 25 years of industry-leading experience, Aftermath Services® is the only trauma and hazard remediation company consistently elevating standards of care and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 254 contacts → | ||||
Indirect evidence “Alliance is one of the most experienced and trusted environmental contractors in California.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 253 contacts → | ||||
Indirect evidence “QM Environmental is a leading Canadian environmental and industrial services provider, trusted for over three decades to deliver complex projects safely, responsibly, and with…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 253 contacts → | ||||
Indirect evidence “Controlled Contamination Services is the leading provider of enterprise solutions for the pharmaceutical, biotech, medical device, electronic, data center, semiconductor…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 231 contacts → | ||||
Indirect evidence “Miller Environmental Group is a leading environmental response, remediation and restoration services company, providing industry, government, commercial and residential customers…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 223 contacts → | ||||
Indirect evidence “Patriot Environmental Services, a Crystal Clean company, is a leading environmental service provider with clients throughout the Southwestern United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 210 contacts → | ||||
Indirect evidence “Spill Tech is a nationwide hazardous waste management company that operates 24/7/365.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 187 contacts → | ||||
Indirect evidence “Bay West is an environmental and industrial services provider for site investigations, groundwater and soil remediation, munitions cleanup, hazardous waste management, industrial…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 182 contacts → | ||||
Indirect evidence “Liberty Industrial is an award-winning provider of specialist decommissioning, demolition, deconstruction and remediation services across the globe.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 181 contacts → | ||||
Indirect evidence “BUCHEN is one of the leading industrial service companies in Europe.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 169 contacts → | ||||
Indirect evidence “Inflector Environmental Services has established itself as one of Canada’s leading environmental service providers in hazardous material remediation, demolition, fireproofing…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 146 contacts → | ||||
Indirect evidence “For more than 60 years, MacQueen has served as the trusted provider of world-class environmental and emergency solutions across the upper Midwest providing private companies…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 145 contacts → | ||||
Indirect evidence “Vamos além da higienização!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 140 contacts → | ||||
Indirect evidence “Qualinet est l'entreprise d'intervention après sinistre la plus connue et la plus appréciée partout au Québec.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 138 contacts → | ||||
Indirect evidence “The World’s Most Comprehensive Facility & Environmental Solutions Company - We Bring Answers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 136 contacts → | ||||
Indirect evidence “The EE & G Group dates back to 1986 and has been in business for over 33 years.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 122 contacts → | ||||
Indirect evidence “First Call is a full service Emergency Response firm founded in 2009.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 120 contacts → | ||||
Indirect evidence “Más de 20 años en el mercado y una cartera de clientes selectos hablan por nosotros.Un trabajo competente y de calidad, a un costo apropiado.” 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: decontamination service providers. 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 decontamination service providers.
- Partial evidence
- Its own public description names part of decontamination service providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name decontamination service providers. 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 2,704 decontamination service providers worldwide
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Decontamination service providers 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 decontamination service providers, 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 decontamination service providers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “decontamination service providers”. 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 decontamination service providers), 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 decontamination service providers, 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, 10,425 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.
Decontamination service providers by location
10 lists · largest firstEvery Decontamination service providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Decontamination service providers based in the United States1,310
- Decontamination service providers based in France155
- Decontamination service providers based in Canada151
- Decontamination service providers based in the United Kingdom151
- Decontamination service providers based in Italy131
- Decontamination service providers based in Brazil66
- Decontamination service providers based in Germany48
- Decontamination service providers based in Australia38
- Decontamination service providers based in the Netherlands30
- Decontamination service providers 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 decontamination service providers, 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 decontamination service providers are there worldwide?
RevenueBase identified 2,704 decontamination service providers 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?
Clean Harbors, headquartered in Norwell, tops this list with the largest team on record.
Which country has the most decontamination service providers?
The United States leads with 1,310 companies, followed by France (155) and Canada (151). Every decontamination service providers list by country and city is linked on this page.
Which city has the most decontamination service providers?
Houston leads with 23 headquartered companies, followed by Denver (14) and Calgary (13).
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 10,425 verified decision-maker contacts tracked across these 2,704 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.