Company lists · Data refreshed September 2026

Top 25 Waste audit and consulting firms based in the United States

Name: Waste audit and consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 1,318 companies tracked

RevenueBase identified 1,318 waste audit and consulting firms headquartered in the United States as of September 2026 and tracks 58,326 professional contacts across them, including 19,210 with verified work emails. Houston is the largest hub.

This list covers waste audit and consulting firms headquartered in the United States, 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.

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

1,318Companies

58,326Contacts tracked

19,210Verified emails

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

The 25 largest waste audit and consulting firms based in the United States

Ranked by team size

Top 25 of 1,318 waste audit and consulting firms based in the United States, 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	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
3	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
4	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
5	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
6	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
7	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
8	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
9	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
10	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
11	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
12	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
13	Rubicon	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 14, 2026	201-500	377 contacts →
	Partial evidence “Rubicon is a waste sciences company that helps national organizations, small and mid-sized businesses, and everyday consumers simplify and optimize their environmental operations…” Source: RevenueBase Database · checked Sep 14, 2026
14	MPS Group	Indirect evidence	Farmington Hills, MI, United StatesHQ checked Sep 14, 2026	1,001-5,000	331 contacts →
	Indirect evidence “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 –…” Source: RevenueBase Database · checked Sep 14, 2026
15	Envita Solutions	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 14, 2026	201-500	327 contacts →
	Partial evidence “Envita Solutions is a premier supplier of customized waste and recycling programs, industrial services, and transformative sustainability solutions.” Source: RevenueBase Database · checked Sep 14, 2026
16	Actenviro, A Republic Services Company	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 14, 2026	501-1,000	313 contacts →
	Indirect evidence “ACT Enviro is a Republic Services company.” Source: RevenueBase Database · checked Sep 14, 2026
17	Ironclad Environmental Solutions	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	201-500	263 contacts →
	Partial evidence “Ironclad Environmental Solutions is the leading provider of custom waste management solutions, supported by the largest national fleet of innovative, top-quality specialty assets.” Source: RevenueBase Database · checked Sep 14, 2026
18	Enviri	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 14, 2026	10001+	251 contacts →
	Indirect evidence “We believe in doing what is right - for our customers, our people, our communities and the environment.” Source: RevenueBase Database · checked Sep 14, 2026
19	ACV Enviro, A Republic Services Company	Indirect evidence	Rahway, NJ, United StatesHQ checked Sep 14, 2026	501-1,000	241 contacts →
	Indirect evidence “ACV Enviro is a Republic Services company.” Source: RevenueBase Database · checked Sep 14, 2026
20	Northstar Recycling	Partial evidence	East Longmeadow, MA, United StatesHQ checked Sep 14, 2026	201-500	230 contacts →
	Partial evidence “Northstar Recycling is the full-service, vendor-agnostic waste and recycling partner trusted by leading manufacturers to reduce landfill use and unlock measurable business value.” Source: RevenueBase Database · checked Sep 14, 2026
21	United Scrap Metal, INC	Indirect evidence	Cicero, IL, United StatesHQ checked Sep 14, 2026	501-1,000	192 contacts →
	Indirect evidence “Founded in 1978, United Scrap Metal (USM) is an award-winning provider of innovative recycling and sustainability solutions.” Source: RevenueBase Database · checked Sep 14, 2026
22	Recycle Track Systems	Partial evidence	New York, United StatesHQ checked Sep 14, 2026	51-200	175 contacts →
	Partial evidence “Recycle Track Systems, Inc.(RTS) is pioneering a better way to manage waste and recycling.” Source: RevenueBase Database · checked Sep 14, 2026
23	Vector97 An SIB Company	Strong evidence	Hurst, TX, United StatesHQ checked Sep 14, 2026	51-200	165 contacts →
	Strong evidence “We are one of the largest waste consulting firms in the country and currently represent almost one million units allowing us to get substantial waste hauling volume discounts.” Source: RevenueBase Database · checked Sep 14, 2026
24	Cleanair Engineering	Indirect evidence	Palatine, IL, United StatesHQ checked Sep 14, 2026	51-200	152 contacts →
	Indirect evidence “Since its founding in 1972, CleanAir has an established reputation for excellence on projects of all sizes, ranging from boiler, APC equipment and cooling tower efficiency testing…” Source: RevenueBase Database · checked Sep 14, 2026
25	Quest Resource Management Group, A Qrhc Company Nasdaq Qrhc	Partial evidence	The Colony, TX, United StatesHQ checked Sep 14, 2026	51-200	147 contacts →
	Partial evidence “Quest Resource Management Group, a subsidiary of Quest Resource Holding Corporation (Nasdaq: QRHC), is a full-service environmental consulting and management company headquartered…” 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 1,318 waste audit and consulting firms based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 19,210 reachable decision-makers.

Free signup · no credit card

View the full list →

Waste audit and consulting firms based in the United States at a glance

As of Sep 14, 2026

32.9%Verified-email coverage

44.3Average contacts per company

11-50Median size (employees)

3.1%Largest-city concentration · Houston

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

630

11-50

442

51-200

173

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,318 companies.

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.
What qualifies: Companies headquartered in the United States 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. Companies headquartered outside United States are excluded even when they keep an office there.
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, 19,210 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 metro

Waste audit and consulting firms in Houston41

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 based in the United States?

RevenueBase identified 1,318 waste audit and consulting firms headquartered in the United States 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 city has the most waste audit and consulting firms?

Houston leads with 41 headquartered companies, followed by New York (22) and Chicago (17).

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 19,210 verified decision-maker contacts tracked across these 1,318 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 1,318 waste audit and consulting firms based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Waste audit and consulting firms by geography

Browse the directory

Browse: Companies home · All United States lists · All Waste audit and consulting firms lists · New lists

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.