Company lists · Data refreshed September 2026

Top 25 Stormwater treatment facility construction companies worldwide

RevenueBase identified 1,184 stormwater treatment facility construction companies worldwide as of September 2026 and tracks 17,862 professional contacts across them, including 7,115 with verified work emails and 0 with mobile numbers. The United States is the largest market and Pune the largest hub.

This list covers stormwater treatment facility construction companies 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 stormwater treatment facility construction companies 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
1,184Companies
17,862Contacts tracked
7,115Verified emails
0Mobile numbers
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The 25 largest stormwater treatment facility construction companies worldwide

Ranked by team size
Top 25 of 1,184 stormwater treatment facility construction companies worldwide, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to stormwater treatment facility construction companies: 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
1Indirect 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
2Partial evidenceStockport, United KingdomHQ checked Sep 16, 20261,001-5,000879 contacts →

Partial evidence

“MWH Treatment is a leading Design and Build non-infrastructure solution provider in the UK water sector, with a water sector heritage dating back to 1820.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceGenova, ItalyHQ checked Sep 16, 202651-200362 contacts →

Indirect evidence

“Fisia Italimpianti S.p.A, part of Webuild Group (the new group born in 2020 from Salini Impregilo), is a worldwide leader in the sustainable design and execution of water…”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceDelhi, IndiaHQ checked Sep 16, 2026501-1,000323 contacts →

Indirect evidence

“Since 2009, Enviro has combined engineering excellence with a commitment to sustainability in water and wastewater solutions across India." Enviro Infra Engineers Limited stands…”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceSão Paulo, BrazilHQ checked Sep 16, 20261,001-5,000307 contacts →

Indirect evidence

“Com mais de 30 anos de atuação no mercado brasileiro, a Enfil é uma empresa referência em soluções ambientais para tratamento de água, efluentes e controle de emissões…”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceOld Saybrook, CT, United StatesHQ checked Sep 16, 2026501-1,000295 contacts →

Partial evidence

“Protecting the environment with innovative wastewater treatment solutions for over 35 years, Infiltrator is the leading manufacturer of onsite wastewater treatment products in…”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceMiamisburg, OH, United StatesHQ checked Sep 16, 2026501-1,000196 contacts →

Indirect evidence

“Ulliman Schutte is a national leader in providing water infrastructure in the United States.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidencePune, IndiaHQ checked Sep 16, 2026201-500191 contacts →

Indirect evidence

“HNB ENGINEERS PVT.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceCoraopolis, PA, United StatesHQ checked Sep 16, 2026201-500185 contacts →

Partial evidence

“Newterra designs, engineers, manufactures, and services environmental, water and wastewater treatment solutions that assure great performance, superb reliability, and the highest…”

Source: RevenueBase Database · checked Sep 16, 2026
10Strong evidencePhoenix, AZ, United StatesHQ checked Sep 16, 2026201-500178 contacts →

Strong evidence

“Felix Construction Company is a general engineering contractor and construction management company with a specific focus on: Water production facilities, well sites, booster pump…”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceSaint-jean-sur-richelieu, QC, CanadaHQ checked Sep 16, 2026501-1,000162 contacts →

Indirect evidence

“1st developer of solutions for mastering water sustainably.”

Source: RevenueBase Database · checked Sep 16, 2026
12Strong evidenceSydney Olympic Park, AustraliaHQ checked Sep 16, 2026201-500147 contacts →

Strong evidence

“At Atlan Stormwater, we draw on more than 45 years’ experience in the design, testing and manufacture of water treatment systems that are utilised in over 45 countries.”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceRobbinsville, NJ, United StatesHQ checked Sep 16, 202651-200145 contacts →

Partial evidence

“Founded in Sovereign is an environmental and water and wastewater construction firm with offices throughout the country.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceKöln, GermanyHQ checked Sep 16, 2026501-1,000140 contacts →

Indirect evidence

“Stadtentwässerungsbetriebe Köln, AöR is a government administration company based out of Ostmerheimer Str.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceCoventry, United KingdomHQ checked Sep 16, 20261,001-5,000137 contacts →

Indirect evidence

“Severn Trent Services offer a range of services to municipal and industrial clients, including the Ministry of Defence and the Coal Authority, for design, build and operation of…”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceMorrisville, NC, United StatesHQ checked Sep 16, 2026501-1,000136 contacts →

Indirect evidence

“AQUALIS is the national leader in water management, compliance and engineering, helping businesses meet complex water regulations while protecting long-term infrastructure.”

Source: RevenueBase Database · checked Sep 16, 2026
17Partial evidenceNashville, TN, United StatesHQ checked Sep 16, 2026501-1,000135 contacts →

Partial evidence

“Stormwater Solutions That Work.”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceYaphank, NY, United StatesHQ checked Sep 16, 202651-200135 contacts →

Indirect evidence

“EnviroTrac Ltd.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceScottsdale, AZ, United StatesHQ checked Sep 16, 202651-200135 contacts →

Indirect evidence

“Water Works Engineers is a leading civil and environmental engineering firm specializing in innovative and sustainable solutions for water infrastructure projects across the…”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceHyderabad, IndiaHQ checked Sep 16, 2026201-500133 contacts →

Indirect evidence

“Euroteck Environmental Pvt.”

Source: RevenueBase Database · checked Sep 16, 2026
21Partial evidenceAnaheim, CA, United StatesHQ checked Sep 16, 202651-200133 contacts →

Partial evidence

“Tomorrow Water is an innovative environmental solutions company specializing in both wastewater and organic waste treatment.”

Source: RevenueBase Database · checked Sep 16, 2026
22Partial evidenceFullerton, CA, United StatesHQ checked Sep 16, 202611-50128 contacts →

Partial evidence

“CWE, an Apex Company, is a dynamic, award-winning civil engineering firm composed of engineers, scientists, designers, and construction support professionals.”

Source: RevenueBase Database · checked Sep 16, 2026
23Partial evidencePhoenix, FL, United StatesHQ checked Sep 16, 202651-200126 contacts →

Partial evidence

“America's #1 Stormwater Consultants Earthworks Environmental, LLC provides top of the line storm water pollution prevention (SWPP/NPDES), erosion control and dust control…”

Source: RevenueBase Database · checked Sep 16, 2026
24Partial evidenceDeerwood, MN, United StatesHQ checked Sep 16, 2026201-500125 contacts →

Partial evidence

“At Rice Lake Construction Group, we know water.”

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidenceEscondido, CA, United StatesHQ checked Sep 16, 2026201-500122 contacts →

Indirect evidence

“Headquartered in Escondido, California, Filanc is an award-winning, general engineering and design-build contractor that solely constructs, renovates, and expands water and…”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 1,184 stormwater treatment facility construction companies worldwide

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Stormwater treatment facility construction companies worldwide at a glance

As of Sep 16, 2026
39.8%Verified-email coverage
15.1Average contacts per company
11-50Median size (employees)
1.4%Largest-city concentration · Pune
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
495
11-50
457
51-200
167
201-500
34
501-1,000
14
1,001-5,000
5
5,001-10,000
1

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 stormwater treatment facility construction companies, 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
10 countries, largest first: the United States, India, France, Germany, Italy, the United Kingdom, Australia, Brazil, Canada, Türkiye. Country and city lists for stormwater treatment facility construction companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “stormwater treatment facility construction companies”. 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 stormwater treatment facility construction companies), 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 stormwater treatment facility construction companies, 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, 7,115 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.

Stormwater treatment facility construction companies by location

10 lists · largest first

Every Stormwater treatment facility construction companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 stormwater treatment facility construction companies, 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 stormwater treatment facility construction companies are there worldwide?

RevenueBase identified 1,184 stormwater treatment facility construction companies 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?

Carollo Engineers, headquartered in Walnut Creek, tops this list with the largest team on record.

Which country has the most stormwater treatment facility construction companies?

The United States leads with 596 companies, followed by India (151) and France (78). Every stormwater treatment facility construction companies list by country and city is linked on this page.

Which city has the most stormwater treatment facility construction companies?

Pune leads with 16 headquartered companies, followed by Houston (11) and Ahmedabad (10).

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 7,115 verified decision-maker contacts tracked across these 1,184 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.