Company lists · Data refreshed November 2026

Top 25 Wastewater system services worldwide

Name: Wastewater system services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 5,847 companies tracked

RevenueBase identified 5,847 company matches for wastewater system services worldwide as of November 2026 and tracks 221,036 professional contacts across them, including 64,492 with verified work emails. The United States is the largest market and Pune the largest hub.

This list covers company matches for wastewater system services 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 wastewater system services 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

5,847Companies

221,036Contacts tracked

64,492Verified emails

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The 25 largest wastewater system services worldwide

Ranked by team size

Top 25 of 5,847 company matches for wastewater system services 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	SUEZ	Exact match	Paris, FranceHQ recorded Nov 6, 2026	10001+	23,115 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 · Nov 6, 2026 · View company records in RevenueBase
2	Sabesp	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	10001+	11,763 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 · Nov 6, 2026 · View company records in RevenueBase
3	Thames Water	Exact match	Reading, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	6,329 contacts →
	Exact match “Thames Water is the UK’s biggest water and wastewater services provider, providing 2.7 billion litres of drinking water and safely removing 4.6 billion litres of wastewater every…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Severn Trent	Exact match	Coventry, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	6,089 contacts →
	Exact match “Water is wonderful.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	SAUR	Exact match	Issy-les-moulineaux, FranceHQ recorded Nov 6, 2026	10001+	3,921 contacts →
	Exact match “As a pure player in water and essential services, Saur works to protect the environment in the heart of the territories it serves.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Aegea Saneamento	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	10001+	3,778 contacts →
	Exact match “Somos a Aegea Saneamento, empresa líder no setor.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	BRK Ambiental	Exact match	BrazilHQ recorded Nov 6, 2026	5,001-10,000	3,589 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 · Nov 6, 2026 · View company records in RevenueBase
8	CEDAE	Exact match	Rio De Janeiro, BrazilHQ recorded Nov 6, 2026	1,001-5,000	2,659 contacts →
	Exact match “Constituída oficialmente em 1º de agosto de 1975, a Companhia Estadual de Águas e Esgotos (CEDAE) é oriunda da fusão da Empresa de Águas do Estado da Guanabara (CEDAG), da Empresa…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Iguá Saneamento	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	2,141 contacts →
	Exact match “A Iguá Saneamento é uma das maiores empresas de saneamento do Brasil, com operações em 120 municípios de Alagoas, Mato Grosso, Paraná, Rio de Janeiro, São Paulo e Sergipe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Uisce Éireann Irish Water	Exact match	Dublin, IrelandHQ recorded Nov 6, 2026	1,001-5,000	2,046 contacts →
	Exact match “We are Uisce Éireann.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	DŴR Cymru Welsh Water	Exact match	Cardiff, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,970 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
12	Sanepar	Exact match	Curitiba, BrazilHQ recorded Nov 6, 2026	5,001-10,000	1,821 contacts →
	Exact match “Visão e Missão Nossa Visão Consolidar a Sanepar como empresa pública, comprometida com a universalização do acesso aos serviços de saneamento ambiental.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Manila Water	Exact match	Quezon City, PhilippinesHQ recorded Nov 6, 2026	1,001-5,000	1,679 contacts →
	Exact match “Manila Water Company, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	SEAAL	Exact match	Alger, AlgeriaHQ recorded Nov 6, 2026	5,001-10,000	1,656 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
15	Aqualia	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	5,001-10,000	1,606 contacts →
	Exact match “Aqualia es la cuarta empresa de gestión del agua de Europa y la novena del Mundo por población servida, según el último ranking de Global Water Intelligence (diciembre de 2024).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Waternet	Exact match	Amsterdam, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	1,528 contacts →
	Exact match “Water is overal om ons heen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	EBMUD	Exact match	Oakland, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,504 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
18	Grupo Águas DO Brasil	Exact match	Niterói, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,481 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 · Nov 6, 2026 · View company records in RevenueBase
19	Companhia DE Água E Esgoto DO Ceará - Cagece	Exact match	Fortaleza, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,435 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 · Nov 6, 2026 · View company records in RevenueBase
20	Wssc Water	Exact match	Laurel, MD, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,263 contacts →
	Exact match “Established in 1918, WSSC Water is currently among the largest water and wastewater utilities in the nation, with a network of nearly miles of drinking water pipeline and over…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Volvo Eicher Commerical Vehical Limited	Exact match	Dhar, IndiaHQ recorded Nov 6, 2026	n/a	1,235 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
22	EVN	Exact match	Maria Enzersdorf, AustriaHQ recorded Nov 6, 2026	5,001-10,000	1,200 contacts →
	Exact match “Wir sind ein börsennotiertes Energie- und Umweltdienstleistungsunternehmen mit Sitz in Niederösterreich.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Watercare Services Limited	Exact match	Auckland, New ZealandHQ recorded Nov 6, 2026	1,001-5,000	1,196 contacts →
	Exact match “At Watercare we’re proud to provide a lifeline service to the people of Auckland, while protecting the environment for future generations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Groupe Nicollin	Exact match	Paris, FranceHQ recorded Nov 6, 2026	10001+	1,176 contacts →
	Exact match “The NICOLLIN Group offers local authorities and private companies optimal value services, enabling its clients to improve their global waste management, urban sanitation and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Morrison Water Services	Exact match	Stevenage, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,142 contacts →
	Exact match “With a significant national workforce operating daily in local communities, we support our clients to keep their assets resilient ensuring customer taps flow, and all wastewater…” Recorded in the RevenueBase company graph · Nov 6, 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 “wastewater system services”. 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 5,847 wastewater system services worldwide

See the full list, filter by size, metro and specialty, and access 64,492 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Wastewater system services worldwide at a glance

As of Nov 6, 2026

29.2%Verified-email coverage

37.8Average contacts per company

11-50Median size (employees)

0.7%Largest-city concentration · Pune

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

2,034

11-50

1,989

51-200

1,010

201-500

356

501-1,000

128

1,001-5,000

136

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 wastewater system services are linked below.
What qualifies: Company records worldwide whose business descriptions match “wastewater system services” 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 64,492 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.

Wastewater system services by location

33 lists · largest first

Every Wastewater system services 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 “wastewater system services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wastewater system services are there worldwide?

RevenueBase identified 5,847 company matches for wastewater system services 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?

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

Which country has the most wastewater system services?

The United States leads with 1,059 companies, followed by India (435) and Germany (340). Every wastewater system services list by country and city is linked on this page.

Which city has the most wastewater system services?

Pune leads with 43 company records, followed by Chennai (31) and Ahmedabad (30).

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 64,492 professional contacts with verified work emails tracked across these 5,847 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.