Company lists · Data refreshed September 2026
Top 25 Waste auditing and consulting firms worldwide
RevenueBase identified 8,593 waste auditing and consulting firms worldwide as of September 2026 and tracks 136,304 professional contacts across them, including 38,884 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers waste auditing and consulting firms 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 29, 2026. Country and city lists for waste auditing and consulting firms 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 waste auditing and consulting firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 24,303 contacts → | ||||
Indirect evidence “WM is North America's leading provider of integrated environmental solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,005 contacts → | ||||
Partial evidence “Cleanaway Waste Management Limited is Australia’s largest, publicly listed waste management company.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,145 contacts → | ||||
Partial evidence “Civil & Environmental Consultants, Inc.(CEC) provides comprehensive market-oriented consulting services that advance the strategic business objectives of its clients.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,791 contacts → | ||||
Indirect evidence “Presidida por Raul Corrêa da Silva, a BDO RCS foi fundada em 2001 e desde então mantém participação expressiva no mercado de auditorias.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,417 contacts → | ||||
Partial evidence “For over 35 years, we have delivered integrated waste management services across multiple regions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,360 contacts → | ||||
Partial evidence “Rumpke Waste and Recycling has been committed to keeping neighborhoods and businesses clean and green since 1932 by providing environmentally friendly waste disposal and recycling…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,360 contacts → | ||||
Indirect evidence “US Ecology is a Republic Services company.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,275 contacts → | ||||
Indirect evidence “Veolia has completed the acquisition of Clean Earth, bringing together two organizations with a shared commitment to environmental stewardship, safety and operational excellence.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,231 contacts → | ||||
Indirect evidence “Casella, headquartered in Rutland, Vermont, is one of the largest recyclers and most experienced fully integrated resource management companies in the Eastern United States.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1,085 contacts → | ||||
Indirect evidence “DERICHEBOURG Environnement propose au monde de l’industrie, aux collectivités et aux particuliers une offre complète et intégrée de services couvrant la collecte, la gestion, le…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,084 contacts → | ||||
Partial evidence “Reworld™ is a leader in sustainable waste solutions, providing innovative and environmentally responsible services to a global community.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1,068 contacts → | ||||
Indirect evidence “Triumvirate Environmental provides sustainable environmental solutions to leading companies in the Life Sciences, Healthcare, Education, and Advanced Manufacturing markets.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 944 contacts → | ||||
Indirect evidence “Estre is one of the largest environmental services companies in Brazil and Latin America.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 839 contacts → | ||||
Partial evidence “EnviroServ offers cost-effective solutions to the complex hazardous and non-hazardous waste and chemical pollution problems, providing peace of mind with regard to the legal…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 716 contacts → | ||||
Partial evidence “WM New Zealand is New Zealand's leading resource recovery, recycling and waste, and environmental services provider, driven by our focus on safety, sustainability, and service and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 699 contacts → | ||||
Indirect evidence “Gravita India Ltd is a world-renowned leader in the recycling industry, providing exceptional customer service and technical expertise to a global customer base in over 70…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 677 contacts → | ||||
Indirect evidence “En Promotora Ambiental nos hemos especializado en brindar soluciones ambientales a los sectores público y privado, en los campos de comercio e industria.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 653 contacts → | ||||
Indirect evidence “Enva is a full-service and leading provider of recycling and resource recovery solutions, employing over 1700 people at locations across the United Kingdom and Ireland.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 629 contacts → | ||||
Indirect evidence “Global Environmental Management Services - Reviva, through its recycling plants across the Kingdom, leads the change for a more sustainable future through comprehensive recycling…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 619 contacts → | ||||
Partial evidence “LRS is among the nation's leading independent waste diversion, recycling and portable services providers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 577 contacts → | ||||
Partial evidence “Who We Are: Athens Services is a family-owned and operated waste collection and recycling company.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 567 contacts → | ||||
Partial evidence “RoadRunner is the new standard in waste + recycling.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 546 contacts → | ||||
Indirect evidence “Filiale du groupe Paprec, Coved maîtrise l’ensemble des métiers de la collecte, du nettoyage des espaces publics, du tri, du traitement, du stockage et de la valorisation des…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 485 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 481 contacts → | ||||
Partial evidence “At VLS, we address your company’s most significant hurdles with waste management and compliance through sustainable solutions.” Source: RevenueBase Database · checked Sep 29, 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: waste auditing and consulting firms. 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 waste auditing and consulting firms.
- Partial evidence
- Its own public description names part of waste auditing and consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name waste auditing and consulting firms. 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 8,593 waste auditing and consulting firms worldwide
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Waste auditing and consulting firms worldwide at a glance
As of Sep 29, 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 waste auditing and consulting firms, 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 waste auditing and consulting firms are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “waste auditing and consulting firms”. 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 waste auditing and consulting firms), 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 waste auditing and consulting firms, 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, 38,884 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 29, 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.
Waste auditing and consulting firms by location
36 lists · largest firstEvery Waste auditing and consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Waste auditing and consulting firms based in the United States1,330
- Waste auditing and consulting firms based in Brazil869
- Waste auditing and consulting firms based in the United Kingdom598
- Waste auditing and consulting firms based in Italy496
- Waste auditing and consulting firms based in Germany435
- Waste auditing and consulting firms based in France367
- Waste auditing and consulting firms based in Spain313
- Waste auditing and consulting firms based in India298
- Waste auditing and consulting firms based in Australia241
- Waste auditing and consulting firms based in Canada212
- Waste auditing and consulting firms based in Türkiye176
- Waste auditing and consulting firms based in Mexico148
- Waste auditing and consulting firms based in Chile139
- Waste auditing and consulting firms based in Poland129
- Waste auditing and consulting firms based in the Netherlands122
- Waste auditing and consulting firms based in South Africa121
- Waste auditing and consulting firms based in Colombia90
- Waste auditing and consulting firms based in Argentina81
- Waste auditing and consulting firms based in Switzerland79
- Waste auditing and consulting firms based in Peru75
- Waste auditing and consulting firms based in the United Arab Emirates70
- Waste auditing and consulting firms based in Belgium54
- Waste auditing and consulting firms based in Portugal54
- Waste auditing and consulting firms based in Sweden51
- Waste auditing and consulting firms based in Norway50
- Waste auditing and consulting firms based in Saudi Arabia37
- Waste auditing and consulting firms based in Greece35
- Waste auditing and consulting firms based in Austria32
- Waste auditing and consulting firms based in Denmark30
- Waste auditing and consulting firms based in Finland30
- Waste auditing and consulting firms based in Ireland29
Cities
- Waste auditing and consulting firms based in Sao Paulo, Brazil110
- Waste auditing and consulting firms based in London, United Kingdom53
- Waste auditing and consulting firms based in Houston, United States44
- Waste auditing and consulting firms based in Curitiba, Brazil35
- Waste auditing and consulting firms based in Rio De Janeiro, Brazil35
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 waste auditing and consulting firms, 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 waste auditing and consulting firms are there worldwide?
RevenueBase identified 8,593 waste auditing and consulting firms 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?
WM, headquartered in Houston, tops this list with the largest team on record.
Which country has the most waste auditing and consulting firms?
The United States leads with 1,330 companies, followed by Brazil (869) and the United Kingdom (598). Every waste auditing and consulting firms list by country and city is linked on this page.
Which city has the most waste auditing and consulting firms?
Sao Paulo leads with 110 headquartered companies, followed by London (55) and Houston (44).
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 38,884 verified decision-maker contacts tracked across these 8,593 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 29, 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.