Company lists · Data refreshed September 2026

Top 25 Municipal wastewater treatment companies worldwide

Name: Municipal wastewater treatment companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 7,259 companies tracked

RevenueBase identified 7,259 company matches for municipal wastewater treatment companies worldwide as of September 2026 and tracks 185,157 professional contacts across them, including 49,606 with verified work emails. The United States is the largest market and Pune the largest hub.

This list covers company matches for municipal wastewater treatment companies 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 September 20, 2026. Country and city lists for municipal wastewater treatment companies 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 Sep 20, 2026 How this list was built

7,259Companies

185,157Contacts tracked

49,606Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest municipal wastewater treatment companies worldwide

Ranked by team size

Top 25 of 7,259 company matches for municipal wastewater treatment companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	SUEZ	Exact match	Paris, FranceHQ recorded Sep 20, 2026	10001+	21,549 contacts →
	Exact match “We provide essential services in the water and waste sectors to preserve resources and improve quality of life wherever we operate.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	Sabesp	Exact match	Sao Paulo, BrazilHQ recorded Sep 20, 2026	10001+	10,050 contacts →
	Exact match “Sabesp is a mixed capital company that was founded in 1973 and is currently responsible for supplying water and collecting and treating sewage in the 375 municipalities of São…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	Severn Trent	Exact match	Coventry, United KingdomHQ recorded Sep 20, 2026	5,001-10,000	5,563 contacts →
	Exact match “Water is wonderful.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	ION Exchange India LTD	Exact match	Mumbai, IndiaHQ recorded Sep 20, 2026	1,001-5,000	3,810 contacts →
	Exact match “At Ion Exchange India, we bring you total environment solutions - water treatment, liquid waste treatment & recycle, air pollution control, solid & hazardous waste management and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	Aegea Saneamento	Exact match	Sao Paulo, BrazilHQ recorded Sep 20, 2026	10001+	3,386 contacts →
	Exact match “Somos a Aegea Saneamento, empresa líder no setor.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	BRK Ambiental	Exact match	BrazilHQ recorded Sep 20, 2026	5,001-10,000	3,306 contacts →
	Exact match “A BRK é uma das maiores empresas privadas de saneamento do país e está presente em 13 estados e mais de 100 municípios, beneficiando a vida de mais de 16 milhões de pessoas.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	VA Tech Wabag LTD	Exact match	Wabag House, IndiaHQ recorded Sep 20, 2026	1,001-5,000	2,375 contacts →
	Exact match “WABAG, a global leader in the water industry, is backed by rich experience spanning over 100 years.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	Carollo Engineers	Exact match	Walnut Creek, CA, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,718 contacts →
	Exact match “For more than 90 years, Carollo Engineers has been dedicated exclusively to water and wastewater solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	SEAAL	Exact match	Alger, AlgeriaHQ recorded Sep 20, 2026	5,001-10,000	1,543 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 · Sep 20, 2026 · View company records in RevenueBase
10	Manila Water	Exact match	Quezon City, PhilippinesHQ recorded Sep 20, 2026	1,001-5,000	1,471 contacts →
	Exact match “Manila Water Company, Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	Grupo Águas DO Brasil	Exact match	Niterói, BrazilHQ recorded Sep 20, 2026	1,001-5,000	1,334 contacts →
	Exact match “Fundado em 1998, o Grupo Águas do Brasil é um dos principais grupos privados de saneamento básico do país, presente em 32 municípios nos estados do Rio de Janeiro, Minas Gerais e…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	Companhia DE Água E Esgoto DO Ceará - Cagece	Exact match	Fortaleza, BrazilHQ recorded Sep 20, 2026	1,001-5,000	1,202 contacts →
	Exact match “A Companhia de Água e Esgoto do Ceará (Cagece), fundada em 1971, é uma empresa de economia mista com capital aberto que tem por finalidade a prestação dos serviços de…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	Volvo Eicher Commerical Vehical Limited	Exact match	Dhar, IndiaHQ recorded Sep 20, 2026	n/a	1,196 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 · Sep 20, 2026 · View company records in RevenueBase
14	Urban Utilities	Exact match	Fortitude Valley, AustraliaHQ recorded Sep 20, 2026	1,001-5,000	1,064 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 · Sep 20, 2026 · View company records in RevenueBase
15	Inframark	Exact match	Horsham, PA, United StatesHQ recorded Sep 20, 2026	1,001-5,000	973 contacts →
	Exact match “As an Azuria owned company, Inframark is a widely recognized leader in Water Infrastructure Operations and Infrastructure Management Services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	SIAAP	Exact match	Paris, FranceHQ recorded Sep 20, 2026	1,001-5,000	968 contacts →
	Exact match “Une entreprise publique unique en Europe Son périmètre d'intervention englobe quatre départements et 180 communes reparties sur quatre autres départements, le SIAAP est - le seul…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	Aquafin	Exact match	Aartselaar, BelgiumHQ recorded Sep 20, 2026	1,001-5,000	920 contacts →
	Exact match “Aquafin is in 1990 opgericht door het Vlaamse Gewest om de rioolwaterzuiveringsinfrastructuur in Vlaanderen verder uit te bouwen, te exploiteren en te financieren.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	Essbio	Exact match	Concepcion, ChileHQ recorded Sep 20, 2026	1,001-5,000	900 contacts →
	Exact match “Essbio es la segunda empresa sanitaria más importante de Chile.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	Séché Environnement	Exact match	Changé, FranceHQ recorded Sep 20, 2026	5,001-10,000	882 contacts →
	Exact match “Séché Environnement is an agile, high performing company that draws its strength from the breadth of its different business lines.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	MWH Treatment	Exact match	Stockport, United KingdomHQ recorded Sep 20, 2026	1,001-5,000	879 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	OVIVO	Exact match	Montreal, QC, CanadaHQ recorded Sep 20, 2026	501-1,000	829 contacts →
	Exact match “Ovivo is a powerful global brand, uniting world-renowned trademarks and a highly specialized team of 700 water treatment experts operating across the globe.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22	Yarra Valley Water	Exact match	Melbourne, AustraliaHQ recorded Sep 20, 2026	501-1,000	821 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 · Sep 20, 2026 · View company records in RevenueBase
23	Gradiant	Exact match	Woburn, MA, United StatesHQ recorded Sep 20, 2026	1,001-5,000	813 contacts →
	Exact match “Gradiant is a Different Kind of Water Company.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24	DE Watergroep	Exact match	Brussel, BelgiumHQ recorded Sep 20, 2026	1,001-5,000	728 contacts →
	Exact match “De Watergroep is het grootste drinkwaterbedrijf in Vlaanderen.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25	Trojan Technologies	Exact match	London, ON, CanadaHQ recorded Sep 20, 2026	501-1,000	716 contacts →
	Exact match “Our Vision To continuously advance water treatment, ensuring everyone has access to clean water, globally.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “municipal wastewater treatment companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 7,259 municipal wastewater treatment companies worldwide

See the full list, filter by size, metro and specialty, and access 49,606 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Municipal wastewater treatment companies worldwide at a glance

As of Sep 20, 2026

26.8%Verified-email coverage

25.5Average contacts per company

11-50Median size (employees)

1.3%Largest-city concentration · Pune

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

2,630

11-50

2,730

51-200

1,228

201-500

362

501-1,000

114

1,001-5,000

5,001-10,000

10001+

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 municipal wastewater treatment companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “municipal wastewater treatment companies” 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 49,606 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 September 20, 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.

Municipal wastewater treatment companies by location

43 lists · largest first

Every Municipal wastewater treatment companies 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 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 “municipal wastewater treatment companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many municipal wastewater treatment companies are there worldwide?

RevenueBase identified 7,259 company matches for municipal wastewater treatment companies worldwide as of September 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?

SUEZ tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most municipal wastewater treatment companies?

The United States leads with 1,138 companies, followed by India (885) and Brazil (357). Every municipal wastewater treatment companies list by country and city is linked on this page.

Which city has the most municipal wastewater treatment companies?

Pune leads with 91 company records, followed by Ahmedabad (69) and Tehran (55).

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 49,606 professional contacts with verified work emails tracked across these 7,259 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 September 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 7,259 municipal wastewater treatment companies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.