Company lists · Data refreshed September 2026

Top 25 Groundwater treatment plant developers worldwide

RevenueBase identified 3,674 groundwater treatment plant developers worldwide as of September 2026 and tracks 48,977 professional contacts across them, including 14,052 with verified work emails. The United States is the largest market and Pune the largest hub.

This list covers groundwater treatment plant developers 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 20, 2026. Country and city lists for groundwater treatment plant developers 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 20, 2026 86% judged on-target in blind review
3,674Companies
48,977Contacts tracked
14,052Verified emails
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The 25 largest groundwater treatment plant developers worldwide

Ranked by team size
Top 25 of 3,674 groundwater treatment plant developers worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to groundwater treatment plant developers: 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 20, 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 20, 2026
2Partial evidenceLondon, ON, CanadaHQ checked Sep 20, 2026501-1,000716 contacts →

Partial evidence

“Our Vision To continuously advance water treatment, ensuring everyone has access to clean water, globally.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceKilcolgan, IrelandHQ checked Sep 20, 20261,001-5,000632 contacts →

Indirect evidence

“Since its establishment, Ward & Burke has sought to develop and adopt the ideals and aspirations to civil engineering construction and currently delivers class leading, reliable…”

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceKadima, IsraelHQ checked Sep 20, 2026501-1,000603 contacts →

Partial evidence

“A world leader in water treatment solutions, IDE specializes in the development, engineering, construction and operation of enhanced desalination and industrial water treatment…”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidenceSalt Lake City, UT, United StatesHQ checked Sep 20, 2026501-1,000554 contacts →

Partial evidence

“WesTech Engineering, LLC designs, engineers, and manufactures water and wastewater treatment process equipment for mineral, industrial, and municipal applications worldwide.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceWestmont, IL, United StatesHQ checked Sep 20, 2026501-1,000483 contacts →

Indirect evidence

“ENTACT is the partner of choice in solving our customer's most complex environmental remediation and geotechnical infrastructure challenges.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceOpheusden, NetherlandsHQ checked Sep 20, 2026501-1,000435 contacts →

Indirect evidence

“Al ruim een halve eeuw zetten we ons in voor duurzame oplossingen op het gebied van waterkwaliteit, waterveiligheid, bio-energie en industriële bouw en infra.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceBroomfield, CO, United StatesHQ checked Sep 20, 2026501-1,000428 contacts →

Indirect evidence

“As a leading U.S.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceWespelaar, FranceHQ checked Sep 20, 2026201-500411 contacts →

Indirect evidence

“Waterleau is your partner in sustainable water stewardship.”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceNewbury, OH, United KingdomHQ checked Sep 20, 2026201-500374 contacts →

Partial evidence

“Founded in 1970, Kinetico pioneered the development of non-electric, fully automatic water treatment systems.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceGenova, ItalyHQ checked Sep 20, 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 20, 2026
12Indirect evidenceDelhi, IndiaHQ checked Sep 20, 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 20, 2026
13Partial evidenceFort Lauderdale, FL, United StatesHQ checked Sep 20, 202651-200317 contacts →

Partial evidence

“Parkson Corporation is a supplier of innovative, cost effective solutions for potable water, process water, and industrial and municipal wastewater treatment.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceSão Paulo, BrazilHQ checked Sep 20, 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 20, 2026
15Indirect evidenceTlacoquemécatl, MexicoHQ checked Sep 20, 2026501-1,000305 contacts →

Indirect evidence

“En TICSA ofrecemos conocimiento y experiencia para crear soluciones innovadoras para el diseño, construcción, operación y mantenimiento de plantas de tratamiento de agua que den…”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceBab Ezzouar, AlgeriaHQ checked Sep 20, 20261,001-5,000293 contacts →

Indirect evidence

“AMENHYD spa, a private company under Algerian law, has been a pioneer and leader in the fields of the environment for 25 years.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceMandeville, LA, JamaicaHQ checked Sep 20, 2026201-500290 contacts →

Indirect evidence

“For over 96 years, MECO has been a world leader in designing and constructing engineered solutions for water purification.”

Source: RevenueBase Database · checked Sep 20, 2026
18Strong evidencePune, IndiaHQ checked Sep 20, 2026501-1,000287 contacts →

Strong evidence

“WTE is a globally recognised manufacturer & exporter of innovative Water & Wastewater Treatment Plants.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceMacquarie Park, AustraliaHQ checked Sep 20, 2026201-500260 contacts →

Indirect evidence

“Enviropacific is committed to working towards creating safer environments and sustainable communities.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceCentennial, CO, United StatesHQ checked Sep 20, 2026201-500255 contacts →

Indirect evidence

“At Forgen, we leave the planet better than we found it.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceMissoula, MT, United StatesHQ checked Sep 20, 2026201-500225 contacts →

Indirect evidence

“Envirocon safely and reliably delivers projects that protect, remediate, and restore our environment for commercial and government clients nationwide.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceOttawa, ON, CanadaHQ checked Sep 20, 2026201-500210 contacts →

Indirect evidence

“Since 1976, BluMetric has been delivering innovative and sustainable solutions to complex environmental challenges.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceLeipzig, GermanyHQ checked Sep 20, 2026501-1,000200 contacts →

Indirect evidence

“Im Jahr 1991 mit dem Fokus auf Wasserversorgung und Abwasserbeseitigung gegründet, operiert unsere Unternehmensgruppe heute in Deutschland und Österreich.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceMiamisburg, OH, United StatesHQ checked Sep 20, 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 20, 2026
25Partial evidenceMinneapolis, MN, United StatesHQ checked Sep 20, 2026201-500195 contacts →

Partial evidence

“Formed in 2017 following the consolidation of independent water treatment solution providers Emefcy and RWL Water, Fluence Corporation was established with the vision of becoming…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 3,674 groundwater treatment plant developers worldwide

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Groundwater treatment plant developers worldwide at a glance

As of Sep 20, 2026
28.7%Verified-email coverage
13.3Average contacts per company
11-50Median size (employees)
1.0%Largest-city concentration · Pune
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
1,381
11-50
1,442
51-200
588
201-500
160
501-1,000
47
1,001-5,000
22
5,001-10,000
7
10001+
6

Email recency is reported on each country list linked below.

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 groundwater treatment plant developers, 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
Every country. Country and city lists for groundwater treatment plant developers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “groundwater treatment plant developers”. 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 groundwater treatment plant developers), 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 groundwater treatment plant developers, 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, 14,052 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 20, 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.

Groundwater treatment plant developers by location

22 lists · largest first

Every Groundwater treatment plant developers 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 groundwater treatment plant developers, 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 groundwater treatment plant developers are there worldwide?

RevenueBase identified 3,674 groundwater treatment plant developers 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 groundwater treatment plant developers?

The United States leads with 599 companies, followed by India (377) and Italy (175). Every groundwater treatment plant developers list by country and city is linked on this page.

Which city has the most groundwater treatment plant developers?

Pune leads with 37 headquartered companies, followed by Tehran (34) and Ahmedabad (28).

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 14,052 verified decision-maker contacts tracked across these 3,674 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 20, 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.