Company lists · Data refreshed September 2026

Top 25 Environmental engineering research centers worldwide

RevenueBase identified 5,107 environmental engineering research centers worldwide as of September 2026 and tracks 125,636 professional contacts across them, including 46,777 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 environmental engineering research centers 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 16, 2026. Country and city lists for environmental engineering research centers 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 16, 2026 86% judged on-target in blind review
5,107Companies
125,636Contacts tracked
46,777Verified emails
0Mobile numbers
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The 25 largest environmental engineering research centers worldwide

Ranked by team size
Top 25 of 5,107 environmental engineering research centers worldwide, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to environmental engineering research centers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidencePasadena, CA, United StatesHQ checked Sep 16, 202610001+12,999 contacts →

Strong evidence

“Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide.”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceOlathe, KS, United StatesHQ checked Sep 16, 20265,001-10,0006,113 contacts →

Partial evidence

“Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceVancouver, BC, CanadaHQ checked Sep 16, 20265,001-10,0003,167 contacts →

Indirect evidence

“Golder was acquired by WSP.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceWalnut Creek, CA, United StatesHQ checked Sep 16, 20261,001-5,0002,473 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 16, 2026
5Strong evidenceBoca Raton, FL, United StatesHQ checked Sep 16, 20261,001-5,0002,393 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceMoon Township, PA, United StatesHQ checked Sep 16, 20261,001-5,0002,145 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 16, 2026
7Indirect evidenceWalnut Creek, CA, United StatesHQ checked Sep 16, 20261,001-5,0001,718 contacts →

Indirect evidence

“For more than 90 years, Carollo Engineers has been dedicated exclusively to water and wastewater solutions.”

Source: RevenueBase Database · checked Sep 16, 2026
8Strong evidenceHelsby, United KingdomHQ checked Sep 16, 202610001+1,255 contacts →

Strong evidence

“RSK Group is a global leader in the delivery of environmental and engineering solutions.”

Source: RevenueBase Database · checked Sep 16, 2026
9Strong evidenceTampa, FL, United StatesHQ checked Sep 16, 20261,001-5,0001,139 contacts →

Strong evidence

“At Verdantas, we blend engineering and environmental science together with advanced technology and world-renowned labs to create solutions with the big picture in mind.”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceRockville, MD, United StatesHQ checked Sep 16, 20261,001-5,0001,137 contacts →

Indirect evidence

“Who is Apex?”

Source: RevenueBase Database · checked Sep 16, 2026
11Strong evidenceMinneapolis, MN, United StatesHQ checked Sep 16, 20261,001-5,0001,088 contacts →

Strong evidence

“Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceRaleigh, NC, United StatesHQ checked Sep 16, 20261,001-5,0001,034 contacts →

Indirect evidence

“We are S & ME.”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceDallas, TX, United StatesHQ checked Sep 16, 20261,001-5,000961 contacts →

Partial evidence

“Trinity Consultants is a global team of experts helping organizations solve complex challenges in environmental compliance, ecological protection, infrastructure performance, and…”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceNorwood, MA, United StatesHQ checked Sep 16, 2026501-1,000880 contacts →

Indirect evidence

“Founded in 1964 as a soils and foundations specialty consultant, GZA GeoEnvironmental, Inc.(GZA) has grown into a full-service company providing its clients with highly…”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceLafayette, LA, United StatesHQ checked Sep 16, 20261,001-5,000865 contacts →

Indirect evidence

“ATC Group Services LLC is now Atlas.”

Source: RevenueBase Database · checked Sep 16, 2026
16Strong evidenceSantiago, ChileHQ checked Sep 16, 2026501-1,000807 contacts →

Strong evidence

“We are Pares & Alvarez, our extensive experience and the recognition of our clients makes us one of the leading Engineering Companies in environmental, consulting, engineering and…”

Source: RevenueBase Database · checked Sep 16, 2026
17Strong evidenceEncinitas, CA, United StatesHQ checked Sep 16, 2026501-1,000795 contacts →

Strong evidence

“Dudek is an environmental, planning, and engineering consulting firm.”

Source: RevenueBase Database · checked Sep 16, 2026
18Partial evidenceDe Pere, WI, United StatesHQ checked Sep 16, 2026501-1,000781 contacts →

Partial evidence

“By combining science, engineering, and technology with a true collaborative spirit, Foth has delivered innovative solutions to our clients since 1938.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceOlivet, FranceHQ checked Sep 16, 20261,001-5,000737 contacts →

Indirect evidence

“Antea Group est une société internationale d’ingénierie et de conseil en environnement.”

Source: RevenueBase Database · checked Sep 16, 2026
20Strong evidenceSt Paul, MN, United StatesHQ checked Sep 16, 20261,001-5,000658 contacts →

Strong evidence

“Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, health and safety, and…”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceCiudad De Mexico, MexicoHQ checked Sep 16, 2026501-1,000581 contacts →

Indirect evidence

“El Instituto de Ingeniería de la Universidad Nacional Autónoma de México (IIUNAM) es el centro de investigación en diversas áreas de la ingeniería más productivo del país.”

Source: RevenueBase Database · checked Sep 16, 2026
22Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 16, 2026201-500578 contacts →

Strong evidence

“For over 100 years, Kennedy Jenks has provided engineering and scientific solutions for innovative water and environmental projects.”

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidenceBellevue, WA, United StatesHQ checked Sep 16, 2026501-1,000547 contacts →

Indirect evidence

“For more than 60 years, it has been the quality of our people that defines the DOWL difference.”

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceRio De Janeiro, BrazilHQ checked Sep 16, 2026201-500540 contacts →

Indirect evidence

“A CTA foi criada em 1995, em Belo Horizonte Minas Gerais, ampliando sua atividade e posicionando sua sede no estado do Rio de Janeiro em Duque de Caxias, próximo ao Pólo…”

Source: RevenueBase Database · checked Sep 16, 2026
25Strong evidenceKennesaw, GA, United StatesHQ checked Sep 16, 2026501-1,000518 contacts →

Strong evidence

“Established in 1996, NOVA was originally founded to provide Environmental Consulting, Geotechnical Engineering, and Construction Materials Testing and Inspection services to the…”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 5,107 environmental engineering research centers worldwide

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Environmental engineering research centers worldwide at a glance

As of Sep 16, 2026
37.2%Verified-email coverage
24.6Average contacts per company
11-50Median size (employees)
1.6%Largest-city concentration · Sao Paulo
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
2,511
11-50
1,790
51-200
565
201-500
129
501-1,000
38
1,001-5,000
33
5,001-10,000
8
10001+
11

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 environmental engineering research centers, 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
24 countries, largest first: the United States, Brazil, India, Italy, Canada, France, Spain, Germany, Türkiye, Australia and 14 more. Country and city lists for environmental engineering research centers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “environmental engineering research centers”. 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 environmental engineering research centers), 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 environmental engineering research centers, 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, 46,777 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 16, 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.

Environmental engineering research centers by location

29 lists · largest first

Every Environmental engineering research centers 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 environmental engineering research centers, 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 environmental engineering research centers are there worldwide?

RevenueBase identified 5,107 environmental engineering research centers 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?

Tetra Tech, headquartered in Pasadena, tops this list with the largest team on record.

Which country has the most environmental engineering research centers?

The United States leads with 1,339 companies, followed by Brazil (1,025) and India (277). Every environmental engineering research centers list by country and city is linked on this page.

Which city has the most environmental engineering research centers?

Sao Paulo leads with 83 headquartered companies, followed by Belo Horizonte (62) and Rio De Janeiro (52).

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 46,777 verified decision-maker contacts tracked across these 5,107 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 16, 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.