Company lists · Data refreshed September 2026

Top 25 Waste audit and consulting firms worldwide

Name: Waste audit and consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 7,134 companies tracked

RevenueBase identified 7,134 waste audit and consulting firms worldwide as of September 2026 and tracks 126,391 professional contacts across them, including 37,281 with verified work emails and 0 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers waste audit 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 14, 2026. Country and city lists for waste audit 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review

7,134Companies

126,391Contacts tracked

37,281Verified emails

0Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest waste audit and consulting firms worldwide

Ranked by team size

Top 25 of 7,134 waste audit and consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to waste audit and consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	WM	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	10001+	24,303 contacts →
	Indirect evidence “WM is North America's leading provider of integrated environmental solutions.” Source: RevenueBase Database · checked Sep 14, 2026
2	Cleanaway Waste Management	Partial evidence	Melbourne, AustraliaHQ checked Sep 14, 2026	5,001-10,000	3,005 contacts →
	Partial evidence “Cleanaway Waste Management Limited is Australia’s largest, publicly listed waste management company.” Source: RevenueBase Database · checked Sep 14, 2026
3	Civil & Environmental Consultants, INC	Partial evidence	Moon Township, PA, United StatesHQ checked Sep 14, 2026	1,001-5,000	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 14, 2026
4	BDO Brazil	Indirect evidence	Sp, BrazilHQ checked Sep 14, 2026	1,001-5,000	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 14, 2026
5	Averda	Partial evidence	Dubai, United Arab EmiratesHQ checked Sep 14, 2026	10001+	1,417 contacts →
	Partial evidence “For over 35 years, we have delivered integrated waste management services across multiple regions.” Source: RevenueBase Database · checked Sep 14, 2026
6	Rumpke Waste & Recycling	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 14, 2026	1,001-5,000	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 14, 2026
7	US Ecology Inc., A Republic Services Company	Indirect evidence	Boise, ID, United StatesHQ checked Sep 14, 2026	1,001-5,000	1,360 contacts →
	Indirect evidence “US Ecology is a Republic Services company.” Source: RevenueBase Database · checked Sep 14, 2026
8	Clean Earth	Indirect evidence	King Of Prussia, PA, United StatesHQ checked Sep 14, 2026	1,001-5,000	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 14, 2026
9	Casella Waste Systems, INC	Indirect evidence	Rutland, VT, United StatesHQ checked Sep 14, 2026	1,001-5,000	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 14, 2026
10	Derichebourg Environnement	Indirect evidence	Paris, FranceHQ checked Sep 14, 2026	5,001-10,000	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 14, 2026
11	Triumvirate Environmental	Indirect evidence	Somerville, MA, United StatesHQ checked Sep 14, 2026	1,001-5,000	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 14, 2026
12	Advanced Disposal Services, INC	Partial evidence	Ponte Vedra, FL, United StatesHQ checked Sep 14, 2026	5,001-10,000	968 contacts →
	Partial evidence “Advanced Disposal, now part of Waste Management Waste Management, based in Houston, Texas, is the leading provider of comprehensive waste management environmental services in…” Source: RevenueBase Database · checked Sep 14, 2026
13	Estre Ambiental	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 14, 2026	5,001-10,000	944 contacts →
	Indirect evidence “Estre is one of the largest environmental services companies in Brazil and Latin America.” Source: RevenueBase Database · checked Sep 14, 2026
14	Enviroserv Waste Management PTY LTD	Partial evidence	Ekurhuleni, South AfricaHQ checked Sep 14, 2026	1,001-5,000	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 14, 2026
15	Gravita India Limited	Indirect evidence	Jaipur, IndiaHQ checked Sep 14, 2026	1,001-5,000	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 14, 2026
16	Promotora Ambiental S.A.B. DE C.V	Indirect evidence	Santa María, MexicoHQ checked Sep 14, 2026	5,001-10,000	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 14, 2026
17	ENVA	Indirect evidence	Enva, United KingdomHQ checked Sep 14, 2026	1,001-5,000	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 14, 2026
18	Global Environmental Management Services LTD	Indirect evidence	Jeddah, Saudi ArabiaHQ checked Sep 14, 2026	1,001-5,000	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 14, 2026
19	Athens Services	Partial evidence	City Of Industry, CA, United StatesHQ checked Sep 14, 2026	1,001-5,000	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 14, 2026
20	Roadrunner	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 14, 2026	501-1,000	567 contacts →
	Partial evidence “RoadRunner is the new standard in waste + recycling.” Source: RevenueBase Database · checked Sep 14, 2026
21	COVED	Indirect evidence	Toulouse, FranceHQ checked Sep 14, 2026	1,001-5,000	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 14, 2026
22	Miller Waste Systems INC	Indirect evidence	Markham, ON, CanadaHQ checked Sep 14, 2026	1,001-5,000	485 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
23	VLS Environmental Solutions, LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1,001-5,000	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 14, 2026
24	ROUX	Partial evidence	Islandia, NY, United StatesHQ checked Sep 14, 2026	201-500	433 contacts →
	Partial evidence “Founded 40 years ago, Roux is recognized for being a highly effective, client-focused environmental consulting and management firm.” Source: RevenueBase Database · checked Sep 14, 2026
25	Interwaste PTY LTD	Partial evidence	Germiston, South AfricaHQ checked Sep 14, 2026	1,001-5,000	431 contacts →
	Partial evidence “As environmental stewards, Interwaste’s holistic approach to waste management combined with global best practice, latest legislation and leading technology provides our clients…” Source: RevenueBase Database · checked Sep 14, 2026

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 audit 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 audit and consulting firms.
Partial evidence: Its own public description names part of waste audit 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 audit 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 7,134 waste audit and consulting firms worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 37,281 reachable decision-makers.

Free signup · no credit card

View the full list →

Waste audit and consulting firms worldwide at a glance

As of Sep 14, 2026

29.5%Verified-email coverage

17.7Average contacts per company

11-50Median size (employees)

1.6%Largest-city concentration · Sao Paulo

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

3,476

11-50

2,317

51-200

881

201-500

227

501-1,000

1,001-5,000

5,001-10,000

10001+

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 audit 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: 34 countries, largest first: the United States, Brazil, the United Kingdom, Italy, Germany, France, India, Spain, Australia, Canada and 24 more. Country and city lists for waste audit and consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “waste audit 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 audit 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 audit 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, 37,281 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 14, 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 audit and consulting firms by location

37 lists · largest first

Every Waste audit and consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 audit 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 audit and consulting firms are there worldwide?

RevenueBase identified 7,134 waste audit 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 audit and consulting firms?

The United States leads with 1,318 companies, followed by Brazil (882) and the United Kingdom (650). Every waste audit and consulting firms list by country and city is linked on this page.

Which city has the most waste audit and consulting firms?

Sao Paulo leads with 115 headquartered companies, followed by London (63) and Houston (41).

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 37,281 verified decision-maker contacts tracked across these 7,134 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 14, 2026.

Ready to reach these companies? Verified emails and direct dials for all 7,134 waste audit and consulting firms worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.