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.
The 25 largest groundwater treatment plant developers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,718 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 716 contacts → | ||||
Partial evidence “Our Vision To continuously advance water treatment, ensuring everyone has access to clean water, globally.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 632 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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 603 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | 554 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 483 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, 2026Thanks. The Data Team will review it. | |||||
| 7 | 435 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 428 contacts → | ||||
Indirect evidence “As a leading U.S.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 411 contacts → | ||||
Indirect evidence “Waterleau is your partner in sustainable water stewardship.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 374 contacts → | ||||
Partial evidence “Founded in 1970, Kinetico pioneered the development of non-electric, fully automatic water treatment systems.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 362 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, 2026Thanks. The Data Team will review it. | |||||
| 12 | 323 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, 2026Thanks. The Data Team will review it. | |||||
| 13 | 317 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, 2026Thanks. The Data Team will review it. | |||||
| 14 | 307 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, 2026Thanks. The Data Team will review it. | |||||
| 15 | 305 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, 2026Thanks. The Data Team will review it. | |||||
| 16 | 293 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, 2026Thanks. The Data Team will review it. | |||||
| 17 | 290 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, 2026Thanks. The Data Team will review it. | |||||
| 18 | 287 contacts → | ||||
Strong evidence “WTE is a globally recognised manufacturer & exporter of innovative Water & Wastewater Treatment Plants.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 260 contacts → | ||||
Indirect evidence “Enviropacific is committed to working towards creating safer environments and sustainable communities.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 255 contacts → | ||||
Indirect evidence “At Forgen, we leave the planet better than we found it.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 225 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, 2026Thanks. The Data Team will review it. | |||||
| 22 | 210 contacts → | ||||
Indirect evidence “Since 1976, BluMetric has been delivering innovative and sustainable solutions to complex environmental challenges.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 200 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, 2026Thanks. The Data Team will review it. | |||||
| 24 | 196 contacts → | ||||
Indirect evidence “Ulliman Schutte is a national leader in providing water infrastructure in the United States.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 195 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, 2026Thanks. The Data Team will review it. | |||||
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: groundwater treatment plant developers. 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 groundwater treatment plant developers.
- Partial evidence
- Its own public description names part of groundwater treatment plant developers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name groundwater treatment plant developers. 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 3,674 groundwater treatment plant developers worldwide
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Groundwater treatment plant developers worldwide at a glance
As of Sep 20, 2026Companies by employee count
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 firstEvery 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
- Groundwater treatment plant developers based in the United States599
- Groundwater treatment plant developers based in India377
- Groundwater treatment plant developers based in Italy175
- Groundwater treatment plant developers based in Brazil155
- Groundwater treatment plant developers based in Canada119
- Groundwater treatment plant developers based in Spain106
- Groundwater treatment plant developers based in Germany105
- Groundwater treatment plant developers based in Türkiye96
- Groundwater treatment plant developers based in the United Kingdom86
- Groundwater treatment plant developers based in France81
- Groundwater treatment plant developers based in Mexico77
- Groundwater treatment plant developers based in Australia74
- Groundwater treatment plant developers based in the Netherlands71
- Groundwater treatment plant developers based in Colombia59
- Groundwater treatment plant developers based in Chile57
- Groundwater treatment plant developers based in the United Arab Emirates47
- Groundwater treatment plant developers based in South Africa45
- Groundwater treatment plant developers based in Argentina42
- Groundwater treatment plant developers based in Belgium31
- Groundwater treatment plant developers based in Portugal26
- Groundwater treatment plant developers based in Saudi Arabia25
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.