Company lists · Data refreshed September 2026
Top 25 Hazardous materials consulting firms based in the United States
RevenueBase identified 2,121 company matches for hazardous materials consulting firms associated with the United States as of September 2026 and tracks 53,741 professional contacts across them, including 18,391 with verified work emails. Houston is the largest hub.
This list covers company matches for hazardous materials consulting firms associated with the United States, 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 September 28, 2026.
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.
The 25 largest hazardous materials consulting firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 8,924 contacts → | ||||
Exact match “Clean Harbors is North America’s leading provider of environmental and industrial services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 2 | 1,529 contacts → | ||||
Exact match “Onterris (formerly Montrose Environmental Group) was one of the first to see environmental responsibility as not just an imperative but as a strategic asset.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 3 | 1,360 contacts → | ||||
Exact match “US Ecology is a Republic Services company.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 4 | 1,275 contacts → | ||||
Exact match “Veolia has completed the acquisition of Clean Earth, bringing together two organizations with a shared commitment to environmental stewardship, safety and operational excellence.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 5 | 1,068 contacts → | ||||
Exact match “Triumvirate Environmental provides sustainable environmental solutions to leading companies in the Life Sciences, Healthcare, Education, and Advanced Manufacturing markets.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 6 | 982 contacts → | ||||
Exact match “The Institute for Environmental Assessment, Inc.(IEA) is small business committed to providing trusted environmental safety consulting services for private and public…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 7 | 899 contacts → | ||||
Exact match “Crystal Clean is a national leader in the environmental services market, providing the smart alternative.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 8 | 658 contacts → | ||||
Exact match “Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, health and safety, and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 9 | 433 contacts → | ||||
Exact match “Founded 40 years ago, Roux is recognized for being a highly effective, client-focused environmental consulting and management firm.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 10 | 336 contacts → | ||||
Exact match “CTEH, LLC's purpose is preparing for and responding to a company's or community’s worst day.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 11 | 331 contacts → | ||||
Exact match “ALL4 is a global consulting firm committed to shaping a sustainable future through innovative environmental, health, and safety (EHS) and digital solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 12 | 331 contacts → | ||||
Exact match “When it comes to managed professional services, there’s one company that puts the latest technologies, quality processes, and innovative management techniques to work for you –…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 13 | 313 contacts → | ||||
Exact match “ACT Enviro is a Republic Services company.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 14 | 277 contacts → | ||||
Exact match “Sevenson Environmental Services, Inc.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 15 | 263 contacts → | ||||
Exact match “Ironclad Environmental Solutions is the leading provider of custom waste management solutions, supported by the largest national fleet of innovative, top-quality specialty assets.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 16 | 259 contacts → | ||||
Exact match “GSI Environmental, Inc.(GSI), is an environmental engineering and science consulting firm committed to measuring, analyzing, and solving complex environmental problems around the…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 17 | 251 contacts → | ||||
Exact match “We believe in doing what is right - for our customers, our people, our communities and the environment.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 18 | 248 contacts → | ||||
Exact match “Founded in 1968, Ancon Services has expanded our services to cover virtually all of our clients industrial and environmental needs.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 19 | 241 contacts → | ||||
Exact match “ACV Enviro is a Republic Services company.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 20 | 238 contacts → | ||||
Exact match “Environmental Works, Inc.(EWI) offers truly comprehensive environmental solutions for a variety of industries, businesses, and municipalities.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 21 | 233 contacts → | ||||
Exact match “Appl Inc is an environmental services company based out of 908 N Temperance Ave, Clovis, CA, United States.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 22 | 223 contacts → | ||||
Exact match “Patriot Environmental Services, a Crystal Clean company, is a leading environmental service provider with clients throughout the Southwestern United States.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 23 | 212 contacts → | ||||
Exact match “For more than five decades, Labelmaster has been the go-to source for companies – big and small – to navigate and comply with the complex, ever-changing regulations that govern…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 24 | 210 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 25 | 209 contacts → | ||||
Exact match “Hillmann has been a well-recognized leader in the Environmental Health & Safety, Due Diligence & Remediation Management, and Construction Services industries since 1985.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “hazardous materials consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 2,121 hazardous materials consulting firms based in the United States
See the full list, filter by size, metro and specialty, and access 18,391 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Hazardous materials consulting firms based in the United States at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 2,121 companies.
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.
- What qualifies
- Company records associated with the United States whose business descriptions match “hazardous materials consulting 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 18,391 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 September 28, 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.
Hazardous materials consulting firms by metro
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 “hazardous materials consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many hazardous materials consulting firms are there based in the United States?
RevenueBase identified 2,121 company matches for hazardous materials consulting firms associated with the United States as of September 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?
Clean Harbors tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most hazardous materials consulting firms?
Houston leads with 69 company records, followed by San Diego (24) and Indianapolis (21).
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 18,391 professional contacts with verified work emails tracked across these 2,121 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 September 28, 2026.
Ready to reach these companies? Verified emails and direct dials for all 2,121 hazardous materials consulting firms based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Hazardous materials consulting firms by geography
- Hazardous materials consulting firms based in Rio De Janeiro, Brazil
- Hazardous materials consulting firms based in Sao Paulo, Brazil
- Hazardous materials consulting firms based in Calgary, Canada
- Hazardous materials consulting firms based in Houston, United States
- Hazardous materials consulting firms based in Argentina
- Hazardous materials consulting firms based in Australia
- Hazardous materials consulting firms based in Belgium
- Hazardous materials consulting firms based in Brazil
- Hazardous materials consulting firms based in Canada
- Hazardous materials consulting firms based in Chile
- Hazardous materials consulting firms based in Colombia
- Hazardous materials consulting firms based in France
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Hazardous materials consulting firms based in Rio De Janeiro, Brazil
- Hazardous materials consulting firms based in Sao Paulo, Brazil
- Hazardous materials consulting firms based in Calgary, Canada
- Hazardous materials consulting firms based in Houston, United States
- Hazardous materials consulting firms based in Argentina
- Hazardous materials consulting firms based in Australia
Company intelligence · public preview
Top 25 hazardous materials consulting firms based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 2,121 matching company records for hazardous materials consulting firms based in the United States, with 53,741 tracked contacts and 18,391 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 28, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 hazardous materials consulting firms based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Clean Harborscleanharbors.comHQ: Norwell, MA, United StatesReported employees: 10001+ | Norwell, MA, United States | 10001+ | Exact match | 8,924 contacts → |
“Clean Harbors is North America’s leading provider of environmental and industrial services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Montrose Environmental Grouponterris.comHQ: Little Rock, AR, United StatesReported employees: 1,001-5,000 | Little Rock, AR, United States | 1,001-5,000 | Exact match | 1,529 contacts → |
“Onterris (formerly Montrose Environmental Group) was one of the first to see environmental responsibility as not just an imperative but as a strategic asset.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  US Ecology Inc., A Republic Services Companyusecology.comHQ: Boise, ID, United StatesReported employees: 1,001-5,000 | Boise, ID, United States | 1,001-5,000 | Exact match | 1,360 contacts → |
“US Ecology is a Republic Services company.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Clean Earthcleanearthinc.comHQ: King Of Prussia, PA, United StatesReported employees: 1,001-5,000 | King Of Prussia, PA, United States | 1,001-5,000 | Exact match | 1,275 contacts → |
“Veolia has completed the acquisition of Clean Earth, bringing together two organizations with a shared commitment to environmental stewardship, safety and operational excellence.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Triumvirate Environmentaltriumvirate.comHQ: Somerville, MA, United StatesReported employees: 1,001-5,000 | Somerville, MA, United States | 1,001-5,000 | Exact match | 1,068 contacts → |
“Triumvirate Environmental provides sustainable environmental solutions to leading companies in the Life Sciences, Healthcare, Education, and Advanced Manufacturing markets.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  IEAieasafety.comHQ: Brooklyn Park, MN, United StatesReported employees: Not recorded | Brooklyn Park, MN, United States | Not recorded | Exact match | 982 contacts → |
“The Institute for Environmental Assessment, Inc.(IEA) is small business committed to providing trusted environmental safety consulting services for private and public…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Crystal Cleancrystal-clean.comHQ: Hoffman Estates, IL, United StatesReported employees: 1,001-5,000 | Hoffman Estates, IL, United States | 1,001-5,000 | Exact match | 899 contacts → |
“Crystal Clean is a national leader in the environmental services market, providing the smart alternative.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Antea Group USAanteagroup.comHQ: St. Paul, MN, United StatesReported employees: 1,001-5,000 | St. Paul, MN, United States | 1,001-5,000 | Exact match | 658 contacts → |
“Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, health and safety, and…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  ROUXrouxinc.comHQ: Islandia, NY, United StatesReported employees: 201-500 | Islandia, NY, United States | 201-500 | Exact match | 433 contacts → |
“Founded 40 years ago, Roux is recognized for being a highly effective, client-focused environmental consulting and management firm.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  CTEHcteh.comHQ: North Little Rock, AR, United StatesReported employees: 201-500 | North Little Rock, AR, United States | 201-500 | Exact match | 336 contacts → |
“CTEH, LLC's purpose is preparing for and responding to a company's or community’s worst day.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  All4all4inc.comHQ: Kimberton, PA, United StatesReported employees: 201-500 | Kimberton, PA, United States | 201-500 | Exact match | 331 contacts → |
“ALL4 is a global consulting firm committed to shaping a sustainable future through innovative environmental, health, and safety (EHS) and digital solutions.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  MPS Groupmpsgrp.comHQ: Farmington Hills, MI, United StatesReported employees: 1,001-5,000 | Farmington Hills, MI, United States | 1,001-5,000 | Exact match | 331 contacts → |
“When it comes to managed professional services, there’s one company that puts the latest technologies, quality processes, and innovative management techniques to work for you –…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Actenviro, A Republic Services Companyactenviro.comHQ: San Jose, CA, United StatesReported employees: 501-1,000 | San Jose, CA, United States | 501-1,000 | Exact match | 313 contacts → |
“ACT Enviro is a Republic Services company.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Sevenson Environmental Services INCsevenson.com HQ: Niagara Falls, NY, United StatesReported employees: 501-1,000 | Niagara Falls, NY, United States | 501-1,000 | Exact match | 277 contacts → |
“Sevenson Environmental Services, Inc.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ironclad Environmental Solutionsironcladenvironmental.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 263 contacts → |
“Ironclad Environmental Solutions is the leading provider of custom waste management solutions, supported by the largest national fleet of innovative, top-quality specialty assets.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  GSI Environmental INCgsienv.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 259 contacts → |
“GSI Environmental, Inc.(GSI), is an environmental engineering and science consulting firm committed to measuring, analyzing, and solving complex environmental problems around the…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Envirienviri.comHQ: Philadelphia, PA, United StatesReported employees: 10001+ | Philadelphia, PA, United States | 10001+ | Exact match | 251 contacts → |
“We believe in doing what is right - for our customers, our people, our communities and the environment.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Ancon Servicesanconservices.comHQ: Los Alamitos, CA, United StatesReported employees: 501-1,000 | Los Alamitos, CA, United States | 501-1,000 | Exact match | 248 contacts → |
“Founded in 1968, Ancon Services has expanded our services to cover virtually all of our clients industrial and environmental needs.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  ACV Enviro, A Republic Services Companyacvenviro.comHQ: Rahway, NJ, United StatesReported employees: 501-1,000 | Rahway, NJ, United States | 501-1,000 | Exact match | 241 contacts → |
“ACV Enviro is a Republic Services company.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Environmental Works, INCenvironmentalworks.comHQ: Springfield, MO, United StatesReported employees: 201-500 | Springfield, MO, United States | 201-500 | Exact match | 238 contacts → |
“Environmental Works, Inc.(EWI) offers truly comprehensive environmental solutions for a variety of industries, businesses, and municipalities.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Metiri Groupapplinc.comHQ: Clovis, CA, United StatesReported employees: Not recorded | Clovis, CA, United States | Not recorded | Exact match | 233 contacts → |
“Appl Inc is an environmental services company based out of 908 N Temperance Ave, Clovis, CA, United States.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Patriot Environmental Servicespatriotenvironmental.comHQ: Signal Hill, CA, United StatesReported employees: 201-500 | Signal Hill, CA, United States | 201-500 | Exact match | 223 contacts → |
“Patriot Environmental Services, a Crystal Clean company, is a leading environmental service provider with clients throughout the Southwestern United States.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Labelmasterlabelmaster.comHQ: Chicago, IL, United StatesReported employees: 201-500 | Chicago, IL, United States | 201-500 | Exact match | 212 contacts → |
“For more than five decades, Labelmaster has been the go-to source for companies – big and small – to navigate and comply with the complex, ever-changing regulations that govern…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  August Mack Environmental, INCaugustmack.comHQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 210 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 |  Hillmann Consulting, LLChillmann.comHQ: Union, NJ, United StatesReported employees: 201-500 | Union, NJ, United States | 201-500 | Exact match | 209 contacts → |
“Hillmann has been a well-recognized leader in the Environmental Health & Safety, Due Diligence & Remediation Management, and Construction Services industries since 1985.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,121 company matches
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Hazardous materials consulting firms: dataset insights
September 28, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
2,118 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 2,121 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 28, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Hazardous materials consulting firms by metro
Questions about this company list
What does Exact match mean for hazardous materials consulting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many hazardous materials consulting firms did RevenueBase find based in the United States?
The saved snapshot records 2,121 matching company records, 53,741 tracked contacts and 18,391 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 28, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Hazardous materials consulting firms by geography
- Hazardous materials consulting firms based in Rio De Janeiro, Brazil
- Hazardous materials consulting firms based in Sao Paulo, Brazil
- Hazardous materials consulting firms based in Calgary, Canada
- Hazardous materials consulting firms based in Houston, United States
- Hazardous materials consulting firms based in Argentina
- Hazardous materials consulting firms based in Australia
- Hazardous materials consulting firms based in Belgium
- Hazardous materials consulting firms based in Brazil
- Hazardous materials consulting firms based in Canada
- Hazardous materials consulting firms based in Chile
- Hazardous materials consulting firms based in Colombia
- Hazardous materials consulting firms based in France
Cite this list
RevenueBase Data Team. Top 25 hazardous materials consulting firms based in the United States. Snapshot: September 28, 2026. https://revenuebase.ai/companies/hazardous-materials-consulting-firms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Hazardous materials consulting firms based in Rio De Janeiro, Brazil
- Hazardous materials consulting firms based in Sao Paulo, Brazil
- Hazardous materials consulting firms based in Calgary, Canada
- Hazardous materials consulting firms based in Houston, United States
- Hazardous materials consulting firms based in Argentina
- Hazardous materials consulting firms based in Australia
Company intelligence · public preview
Top 25 hazardous materials consulting firms based in the United States
RevenueBase records 2,121 matching company records for hazardous materials consulting firms based in the United States, with 53,741 tracked contacts and 18,391 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 28, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 hazardous materials consulting firms based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Clean Harborscleanharbors.com HQ: Norwell, MA, United StatesReported employees: 10001+ | Norwell, MA, United States | 10001+ | Exact match | 8,924 contacts → |
“Clean Harbors is North America’s leading provider of environmental and industrial services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Montrose Environmental Grouponterris.com HQ: Little Rock, AR, United StatesReported employees: 1,001-5,000 | Little Rock, AR, United States | 1,001-5,000 | Exact match | 1,529 contacts → |
“Onterris (formerly Montrose Environmental Group) was one of the first to see environmental responsibility as not just an imperative but as a strategic asset.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | US Ecology Inc., A Republic Services Companyusecology.com HQ: Boise, ID, United StatesReported employees: 1,001-5,000 | Boise, ID, United States | 1,001-5,000 | Exact match | 1,360 contacts → |
“US Ecology is a Republic Services company.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Clean Earthcleanearthinc.com HQ: King Of Prussia, PA, United StatesReported employees: 1,001-5,000 | King Of Prussia, PA, United States | 1,001-5,000 | Exact match | 1,275 contacts → |
“Veolia has completed the acquisition of Clean Earth, bringing together two organizations with a shared commitment to environmental stewardship, safety and operational excellence.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Triumvirate Environmentaltriumvirate.com HQ: Somerville, MA, United StatesReported employees: 1,001-5,000 | Somerville, MA, United States | 1,001-5,000 | Exact match | 1,068 contacts → |
“Triumvirate Environmental provides sustainable environmental solutions to leading companies in the Life Sciences, Healthcare, Education, and Advanced Manufacturing markets.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | IEAieasafety.com HQ: Brooklyn Park, MN, United StatesReported employees: Not recorded | Brooklyn Park, MN, United States | Not recorded | Exact match | 982 contacts → |
“The Institute for Environmental Assessment, Inc.(IEA) is small business committed to providing trusted environmental safety consulting services for private and public…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Crystal Cleancrystal-clean.com HQ: Hoffman Estates, IL, United StatesReported employees: 1,001-5,000 | Hoffman Estates, IL, United States | 1,001-5,000 | Exact match | 899 contacts → |
“Crystal Clean is a national leader in the environmental services market, providing the smart alternative.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Antea Group USAanteagroup.com HQ: St. Paul, MN, United StatesReported employees: 1,001-5,000 | St. Paul, MN, United States | 1,001-5,000 | Exact match | 658 contacts → |
“Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, health and safety, and…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | ROUXrouxinc.com HQ: Islandia, NY, United StatesReported employees: 201-500 | Islandia, NY, United States | 201-500 | Exact match | 433 contacts → |
“Founded 40 years ago, Roux is recognized for being a highly effective, client-focused environmental consulting and management firm.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | CTEHcteh.com HQ: North Little Rock, AR, United StatesReported employees: 201-500 | North Little Rock, AR, United States | 201-500 | Exact match | 336 contacts → |
“CTEH, LLC's purpose is preparing for and responding to a company's or community’s worst day.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | All4all4inc.com HQ: Kimberton, PA, United StatesReported employees: 201-500 | Kimberton, PA, United States | 201-500 | Exact match | 331 contacts → |
“ALL4 is a global consulting firm committed to shaping a sustainable future through innovative environmental, health, and safety (EHS) and digital solutions.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | MPS Groupmpsgrp.com HQ: Farmington Hills, MI, United StatesReported employees: 1,001-5,000 | Farmington Hills, MI, United States | 1,001-5,000 | Exact match | 331 contacts → |
“When it comes to managed professional services, there’s one company that puts the latest technologies, quality processes, and innovative management techniques to work for you –…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Actenviro, A Republic Services Companyactenviro.com HQ: San Jose, CA, United StatesReported employees: 501-1,000 | San Jose, CA, United States | 501-1,000 | Exact match | 313 contacts → |
“ACT Enviro is a Republic Services company.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Sevenson Environmental Services INCsevenson.com HQ: Niagara Falls, NY, United StatesReported employees: 501-1,000 | Niagara Falls, NY, United States | 501-1,000 | Exact match | 277 contacts → |
“Sevenson Environmental Services, Inc.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ironclad Environmental Solutionsironcladenvironmental.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 263 contacts → |
“Ironclad Environmental Solutions is the leading provider of custom waste management solutions, supported by the largest national fleet of innovative, top-quality specialty assets.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | GSI Environmental INCgsienv.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 259 contacts → |
“GSI Environmental, Inc.(GSI), is an environmental engineering and science consulting firm committed to measuring, analyzing, and solving complex environmental problems around the…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Envirienviri.com HQ: Philadelphia, PA, United StatesReported employees: 10001+ | Philadelphia, PA, United States | 10001+ | Exact match | 251 contacts → |
“We believe in doing what is right - for our customers, our people, our communities and the environment.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Ancon Servicesanconservices.com HQ: Los Alamitos, CA, United StatesReported employees: 501-1,000 | Los Alamitos, CA, United States | 501-1,000 | Exact match | 248 contacts → |
“Founded in 1968, Ancon Services has expanded our services to cover virtually all of our clients industrial and environmental needs.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | ACV Enviro, A Republic Services Companyacvenviro.com HQ: Rahway, NJ, United StatesReported employees: 501-1,000 | Rahway, NJ, United States | 501-1,000 | Exact match | 241 contacts → |
“ACV Enviro is a Republic Services company.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Environmental Works, INCenvironmentalworks.com HQ: Springfield, MO, United StatesReported employees: 201-500 | Springfield, MO, United States | 201-500 | Exact match | 238 contacts → |
“Environmental Works, Inc.(EWI) offers truly comprehensive environmental solutions for a variety of industries, businesses, and municipalities.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Metiri Groupapplinc.com HQ: Clovis, CA, United StatesReported employees: Not recorded | Clovis, CA, United States | Not recorded | Exact match | 233 contacts → |
“Appl Inc is an environmental services company based out of 908 N Temperance Ave, Clovis, CA, United States.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Patriot Environmental Servicespatriotenvironmental.com HQ: Signal Hill, CA, United StatesReported employees: 201-500 | Signal Hill, CA, United States | 201-500 | Exact match | 223 contacts → |
“Patriot Environmental Services, a Crystal Clean company, is a leading environmental service provider with clients throughout the Southwestern United States.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Labelmasterlabelmaster.com HQ: Chicago, IL, United StatesReported employees: 201-500 | Chicago, IL, United States | 201-500 | Exact match | 212 contacts → |
“For more than five decades, Labelmaster has been the go-to source for companies – big and small – to navigate and comply with the complex, ever-changing regulations that govern…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | August Mack Environmental, INCaugustmack.com HQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 210 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | Hillmann Consulting, LLChillmann.com HQ: Union, NJ, United StatesReported employees: 201-500 | Union, NJ, United States | 201-500 | Exact match | 209 contacts → |
“Hillmann has been a well-recognized leader in the Environmental Health & Safety, Due Diligence & Remediation Management, and Construction Services industries since 1985.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,121 company matches
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Hazardous materials consulting firms: dataset insights
September 28, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
2,118 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 2,121 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 28, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Hazardous materials consulting firms by metro
Questions about this company list
What does Exact match mean for hazardous materials consulting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many hazardous materials consulting firms did RevenueBase find based in the United States?
The saved snapshot records 2,121 matching company records, 53,741 tracked contacts and 18,391 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 28, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Hazardous materials consulting firms by geography
- Hazardous materials consulting firms based in Rio De Janeiro, Brazil
- Hazardous materials consulting firms based in Sao Paulo, Brazil
- Hazardous materials consulting firms based in Calgary, Canada
- Hazardous materials consulting firms based in Houston, United States
- Hazardous materials consulting firms based in Argentina
- Hazardous materials consulting firms based in Australia
- Hazardous materials consulting firms based in Belgium
- Hazardous materials consulting firms based in Brazil
- Hazardous materials consulting firms based in Canada
- Hazardous materials consulting firms based in Chile
- Hazardous materials consulting firms based in Colombia
- Hazardous materials consulting firms based in France
Cite this list
RevenueBase Data Team. Top 25 hazardous materials consulting firms based in the United States. Snapshot: September 28, 2026. https://revenuebase.ai/companies/hazardous-materials-consulting-firms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Hazardous materials consulting firms based in Rio De Janeiro, Brazil
- Hazardous materials consulting firms based in Sao Paulo, Brazil
- Hazardous materials consulting firms based in Calgary, Canada
- Hazardous materials consulting firms based in Houston, United States
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