Company lists · Data refreshed November 2026

Top 25 Drinking water treatment facilities worldwide

RevenueBase identified 1,313 company matches for drinking water treatment facilities worldwide as of November 2026 and tracks 38,500 professional contacts across them, including 11,479 with verified work emails. The United States is the largest market and Pune the largest hub.

This list covers company matches for drinking water treatment facilities 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 November 6, 2026. Country and city lists for drinking water treatment facilities 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 Nov 6, 2026 How this list was built
1,313Companies
38,500Contacts tracked
11,479Verified emails
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The 25 largest drinking water treatment facilities worldwide

Ranked by team size
Top 25 of 1,313 company matches for drinking water treatment facilities worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchCardiff, United KingdomHQ recorded Nov 6, 20261,001-5,0001,970 contacts →

Exact match

“Bath-times, half-times, party-times, meeting-times, and cooking-times.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAlger, AlgeriaHQ recorded Nov 6, 20265,001-10,0001,656 contacts →

Exact match

“La Société des Eaux et de l’Assainissement d’Alger (SEAAL), est une Société Publique par actions, détenue à 70% par l’Algérienne des Eaux (ADE) et à 30% par l’Office National de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 20261,001-5,0001,528 contacts →

Exact match

“Water is overal om ons heen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchOakland, CA, United StatesHQ recorded Nov 6, 20261,001-5,0001,504 contacts →

Exact match

“East Bay Municipal Utility District is a California public utility that supplies high-quality drinking water, generates renewable energy and provides wastewater treatment and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchDhar, IndiaHQ recorded Nov 6, 2026n/a1,235 contacts →

Exact match

“Volvo Eicher Commerical Vehical Limited Service Provider of waste water recycling systems, drinking water plant & industrial water treatment in Indore, Madhya Pradesh.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchKuala Lumpur, MalaysiaHQ recorded Nov 6, 20265,001-10,0001,193 contacts →

Exact match

“Pengurusan Air Selangor Sdn Bhd (Air Selangor) is the largest water services provider in Malaysia, providing clean and safe treated water to 9.62 million consumers in Selangor…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchFortitude Valley, AustraliaHQ recorded Nov 6, 20261,001-5,0001,112 contacts →

Exact match

“We’re responsible for delivering world-class drinking water and wastewater services to the growing communities of Brisbane, Ipswich, Lockyer Valley, Somerset and Scenic Rim.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMelbourne, AustraliaHQ recorded Nov 6, 2026501-1,000903 contacts →

Exact match

“We service 2 million people and businesses across a area, from Wallan in the north to Warburton in the east.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchRotterdam, NetherlandsHQ recorded Nov 6, 2026501-1,000839 contacts →

Exact match

“Duurzaam, innovatief en in verbinding met de omgeving; zo werkt Evides Waterbedrijf.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLondon, ON, CanadaHQ recorded Nov 6, 2026501-1,000751 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchVersailles, FranceHQ recorded Nov 6, 20261,001-5,000700 contacts →

Exact match

“Spécialiste du traitement de l’eau depuis plus de 80 ans, Culligan apporte chaque jour une eau de qualité aux particuliers, aux entreprises et aux collectivités.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchKadima, IsraelHQ recorded Nov 6, 2026501-1,000660 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchParis, FranceHQ recorded Nov 6, 2026501-1,000633 contacts →

Exact match

“Première entreprise publique d’eau en France, Eau de Paris délivre chaque jour une eau d’excellente qualité, au prix le plus juste à ses 3 millions d’usagers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchTunis, TunisiaHQ recorded Nov 6, 202610001+616 contacts →

Exact match

“SONEDE Société Nationale d'Exploitation et de Distribution des Eaux Établissement public créé par la loi 68-22 du 2 juillet 1968 telle que modifiée par la loi 76-21 du 21 janvier…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBruxelles - Brussel, BelgiumHQ recorded Nov 6, 20261,001-5,000600 contacts →

Exact match

“Créée en 1891, VIVAQUA figure parmi les plus importants services d'eau de Belgique et fournit chaque jour plus de m³ d'eau à 2,25 millions d'habitants.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAthens, GreeceHQ recorded Nov 6, 20261,001-5,000564 contacts →

Exact match

“Athens Water Supply & Sewerage Company S.A.(EYDAP) is the largest Greek company in the water supply, sewerage and waste water treatment sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchHamburg, GermanyHQ recorded Nov 6, 20261,001-5,000514 contacts →

Exact match

“Wasser ist Leben – und wir sorgen täglich dafür, dass zuverlässig reines Trinkwasser durch die Wasserhähne fließt und Abwasser nachhaltig entsorgt wird.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchDoetinchem, NetherlandsHQ recorded Nov 6, 2026501-1,000512 contacts →

Exact match

“Waterschap Rijn en IJssel zorgt voor het water in Oost-Gelderland, het zuiden van Overijssel en het zuidoosten van de Veluwe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAntwerp, BelgiumHQ recorded Nov 6, 2026501-1,000380 contacts →

Exact match

“Pidpa, als integrale waterpartner, biedt een ruime waaier van producten en diensten aan: Drinkwatervoorziening In 64 gemeenten van de provincie Antwerpen staat Pidpa garant voor…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchDelhi, IndiaHQ recorded Nov 6, 2026501-1,000368 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchFort Lauderdale, KS, United StatesHQ recorded Nov 6, 202651-200360 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchKissimmee, FL, United StatesHQ recorded Nov 6, 2026501-1,000283 contacts →

Exact match

“Toho Water Authority was established in 2003 by a special act of the Florida legislature and provides a full range of water, wastewater and reclaimed water services to its…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchGouda, NetherlandsHQ recorded Nov 6, 2026201-500271 contacts →

Exact match

“Oasen is een maatschappelijk drinkwaterbedrijf.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchPittsburgh, United StatesHQ recorded Nov 6, 2026201-500248 contacts →

Exact match

“ALCOSAN is one of the Pittsburgh region’s premiere environmental and public health organizations, treating wastewater for 83 Allegheny County communities, including the City of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLoves Park, IL, United StatesHQ recorded Nov 6, 202651-200234 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,313 drinking water treatment facilities worldwide

See the full list, filter by size, metro and specialty, and access 11,479 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Drinking water treatment facilities worldwide at a glance

As of Nov 6, 2026
29.8%Verified-email coverage
29.3Average contacts per company
11-50Median size (employees)
0.9%Largest-city concentration · Pune
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
546
11-50
390
51-200
205
201-500
65
501-1,000
38
1,001-5,000
30
5,001-10,000
4
10001+
5

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 drinking water treatment facilities are linked below.
What qualifies
Company records worldwide whose business descriptions match “drinking water treatment facilities” 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 11,479 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 November 6, 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.

Drinking water treatment facilities by location

8 lists · largest first

Every Drinking water treatment facilities 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 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 “drinking water treatment facilities”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many drinking water treatment facilities are there worldwide?

RevenueBase identified 1,313 company matches for drinking water treatment facilities worldwide as of November 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?

DŴR Cymru Welsh Water tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most drinking water treatment facilities?

The United States leads with 349 companies, followed by India (101) and Germany (63). Every drinking water treatment facilities list by country and city is linked on this page.

Which city has the most drinking water treatment facilities?

Pune leads with 12 company records, followed by Ahmedabad (9) and Chennai (8).

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 11,479 professional contacts with verified work emails tracked across these 1,313 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 November 6, 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.