Company lists · Data refreshed October 2026

Top 25 Environmental services contractors worldwide

Name: Environmental services contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 27,350 companies tracked

RevenueBase identified 27,350 company matches for environmental services contractors worldwide as of October 2026 and tracks 533,220 professional contacts across them, including 136,829 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for environmental services contractors worldwide, 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 October 12, 2026. Country and city lists for environmental services contractors follow the table.

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.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 12, 2026 How this list was built

27,350Companies

533,220Contacts tracked

136,829Verified emails

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The 25 largest environmental services contractors worldwide

Ranked by team size

Top 25 of 27,350 company matches for environmental services contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Veolia	Exact match	Aubervilliers, FranceHQ recorded Oct 12, 2026	10001+	31,975 contacts →
	Exact match “Veolia, a global leader in environmental services, works every day to build environmental security for the benefit of public health and the competitiveness of industries and…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Tetra Tech	Exact match	Pasadena, CA, United StatesHQ recorded Oct 12, 2026	10001+	13,725 contacts →
	Exact match “Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	Verzani & Sandrini	Exact match	Sao Paulo, BrazilHQ recorded Oct 12, 2026	10001+	11,080 contacts →
	Exact match “Com uma história sólida de sucesso desde sua fundação em 1967, a Verzani & Sandrini se destaca como líder nacional em diversos serviços terceirizados.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Clean Harbors	Exact match	Norwell, MA, United StatesHQ recorded Oct 12, 2026	10001+	9,255 contacts →
	Exact match “Clean Harbors is North America’s leading provider of environmental and industrial services.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	Grupo Brasanitas	Exact match	São Paulo, BrazilHQ recorded Oct 12, 2026	10001+	7,190 contacts →
	Exact match “O Grupo Brasanitas é composto por quatro empresas, Brasanitas Limpeza e Conservação, Brasanitas Hospitalar, Praxxis Controle de Pragas e Infralink Facilities Services, o Grupo…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	GFL Environmental INC	Exact match	Vaughan, ON, CanadaHQ recorded Oct 12, 2026	10001+	6,275 contacts →
	Exact match “GFL Environmental is the only major diversified environmental services company in North America offering services in solid waste management, liquid waste management and soil…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	Grupo Orbenk	Exact match	Joinville, BrazilHQ recorded Oct 12, 2026	10001+	4,180 contacts →
	Exact match “Há 39 anos no mercado, a Orbenk oferece qualidade e eficiência em terceirização de mão de obra especializada e serviços com foco em limpeza e conservação de ambientes.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	ION Exchange India LTD	Exact match	Mumbai, IndiaHQ recorded Oct 12, 2026	1,001-5,000	3,859 contacts →
	Exact match “At Ion Exchange India, we bring you total environment solutions - water treatment, liquid waste treatment & recycle, air pollution control, solid & hazardous waste management and…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	Ortec Group	Exact match	Aix-en-provence, FranceHQ recorded Oct 12, 2026	10001+	3,504 contacts →
	Exact match “En conjuguant depuis sa création audace et rigueur, le groupe Ortec est devenu aujourd’hui un des leaders des services à l’industrie, l’énergie et l’environnement.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	Golder	Exact match	Vancouver, BC, CanadaHQ recorded Oct 12, 2026	5,001-10,000	3,241 contacts →
	Exact match “Golder was acquired by WSP.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Dulsco Group	Exact match	Dubai, United Arab EmiratesHQ recorded Oct 12, 2026	10001+	3,161 contacts →
	Exact match “At Dulsco, we have a singular ambition - to help power better communities.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	APTIM	Exact match	Baton Rouge, LA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,692 contacts →
	Exact match “APTIM enhances the quality of the environment, wellbeing of people, resilience of communities, and opportunity for employees to make a difference, not just a living.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	RE Sustainability Limited	Exact match	Hyderabad, IndiaHQ recorded Oct 12, 2026	10001+	2,584 contacts →
	Exact match “Re is one of Asia’s leading integrated resource management and sustainability solutions companies, turning environmental challenges into sustainable value.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	Geosyntec Consultants	Exact match	Boca Raton, FL, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,521 contacts →
	Exact match “Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Brown And Caldwell	Exact match	Walnut Creek, CA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,510 contacts →
	Exact match “Headquartered in Walnut Creek, Calif, Brown and Caldwell is an employee-owned firm with 2,100+ professionals serving clients locally and globally from 52 locations.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	GDI Integrated Facility Services	Exact match	Lasalle, QC, CanadaHQ recorded Oct 12, 2026	10001+	2,491 contacts →
	Exact match “GDI provides unequalled capability and expertise in the facility services sector across Canada and the United States.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	Langan Engineering & Environmental Services	Exact match	Parsippany, NJ, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,402 contacts →
	Exact match “Langan's client-focused, highly entrepreneurial culture cultivates an environment of opportunities in which career growth and teamwork flourish.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	ABM Janitorial Services	Exact match	Sugar Land, TX, United StatesHQ recorded Oct 12, 2026	10001+	2,328 contacts →
	Exact match “Commercial Cleaning Service That Shines There’s more to janitorial services than a mop hitting the floor.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	Providence	Exact match	Baton Rouge, LA, United StatesHQ recorded Oct 12, 2026	n/a	2,256 contacts →
	Exact match “Providence is an employee-owned engineering and environmental consulting firm.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Hazen And Sawyer	Exact match	New York, NY, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,251 contacts →
	Exact match “As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Civil & Environmental Consultants, INC	Exact match	Moon Township, PA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,204 contacts →
	Exact match “Civil & Environmental Consultants, Inc.(CEC) provides comprehensive market-oriented consulting services that advance the strategic business objectives of its clients.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	SSC Services For Education	Exact match	Knoxville, TN, United StatesHQ recorded Oct 12, 2026	10001+	1,876 contacts →
	Exact match “SSC Services For Education is the premier provider of custom facility services in educational spaces.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Swca Environmental Consultants	Exact match	Phoenix, AZ, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,661 contacts →
	Exact match “Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	UES	Exact match	Orlando, FL, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,643 contacts →
	Exact match “UES provides professional engineering, environmental, testing and inspection services to clients across the United States.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	Exponent	Exact match	Menlo Park, CA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,628 contacts →
	Exact match “In an era of accelerating change, Exponent is the only premium engineering and scientific consulting firm with the depth and breadth of expertise to solve our clients’ most…” Recorded in the RevenueBase company graph · Oct 12, 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 “environmental services contractors”. 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 27,350 environmental services contractors worldwide

See the full list, filter by size, metro and specialty, and access 136,829 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental services contractors worldwide at a glance

As of Oct 12, 2026

25.7%Verified-email coverage

19.5Average contacts per company

11-50Median size (employees)

1.3%Largest-city concentration · Sao Paulo

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

13,323

11-50

8,768

51-200

3,202

201-500

1,038

501-1,000

357

1,001-5,000

397

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for environmental services contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “environmental services contractors” 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. 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 136,829 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 October 12, 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.

Environmental services contractors by location

111 lists · largest first

Every Environmental services contractors 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 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 “environmental services contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental services contractors are there worldwide?

RevenueBase identified 27,350 company matches for environmental services contractors worldwide as of October 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?

Veolia tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most environmental services contractors?

The United States leads with 6,440 companies, followed by Brazil (3,239) and Italy (1,535). Every environmental services contractors list by country and city is linked on this page.

Which city has the most environmental services contractors?

Sao Paulo leads with 363 company records, followed by Rio De Janeiro (147) and Lima (142).

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 136,829 professional contacts with verified work emails tracked across these 27,350 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 October 12, 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 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.