Company lists · Data refreshed November 2026

Top 25 Water & wastewater contract operating services based in Portugal

RevenueBase identified 56 company matches for water & wastewater contract operating services associated with Portugal as of November 2026 and tracks 2,621 professional contacts across them, including 769 with verified work emails. Lisbon is the largest hub.

This list covers company matches for water & wastewater contract operating services associated with Portugal, 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 3, 2026.

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 3, 2026 How this list was built
56Companies
2,621Contacts tracked
769Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest water & wastewater contract operating services based in Portugal

Ranked by team size
Top 25 of 56 company matches for water & wastewater contract operating services based in Portugal, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 3, 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 matchOeiras, PortugalHQ recorded Nov 3, 202651-200542 contacts →

Exact match

“AGS – Administração e Gestão de Sistemas de Salubridade, SA focuses on the preservation of the environment, acting throughout the entire water cycle.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
2Exact matchLisbon, PortugalHQ recorded Nov 3, 20261,001-5,000289 contacts →

Exact match

“The core activity of AdP group involves the integrated management of the urban water cycle and spanning all of its respective phases, ranging from the capture, treatment and…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
3Exact matchMatosinhos, PortugalHQ recorded Nov 3, 2026501-1,000263 contacts →

Exact match

“Founded in 1994, the INDAQUA Group is a leader in the management of water supply systems for human consumption and wastewater sanitation, and one of the largest operators in the…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
4Exact matchPorto, PortugalHQ recorded Nov 3, 2026501-1,000257 contacts →

Exact match

“Águas do Porto is the municipal water utility company of Porto, Portugal.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
5Exact matchVila Real, PortugalHQ recorded Nov 3, 2026501-1,000240 contacts →

Exact match

“A Águas do Norte, S.A.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
6Exact matchPragal - Almada, PortugalHQ recorded Nov 3, 2026201-500149 contacts →

Exact match

“Os SMAS - Serviços Municipalizados de Água e Saneamento do Município de Almada, são um serviço público de interesse local.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
7Exact matchBraga, PortugalHQ recorded Nov 3, 2026501-1,00067 contacts →

Exact match

“A Agere- Empresa de águas, Efluentes e Resíduos de Braga, EM surgiu da transformação dos Serviços Municipalizados de Águas e Saneamento em Empresa Pública Municipal, em Em 2005, o…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
8Exact matchLoures, PortugalHQ recorded Nov 3, 2026501-1,00056 contacts →

Exact match

“Os Serviços Intermunicipalizados de Águas e Resíduos de Loures e Odivelas foram criados em 2014.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
9Exact matchAldeia De Juzo, PortugalHQ recorded Nov 3, 2026201-50035 contacts →

Exact match

“A Águas de Cascais é a empresa concessionária do Sistema Municipal de Distribuição de Água e de Drenagem de Águas Residuais do município de Cascais.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
10Exact matchPortugalHQ recorded Nov 3, 2026201-50023 contacts →

Exact match

“Os Serviços Municipalizados de Setúbal são um organismo público que visa garantir o abastecimento de água, o encaminhamento das águas residuais e a recolha dos resíduos urbanos de…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
11Exact matchVila Nova De Gaia, PortugalHQ recorded Nov 3, 202611-5023 contacts →

Exact match

“Na SIMDOURO, S.A, somos especialistas no tratamento e gestão de águas residuais urbanas e servimos atualmente mais de 519 mil habitantes numa vasta área de 1300 km², que abrange 7…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
12Exact matchGuimarães, PortugalHQ recorded Nov 3, 202651-20023 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
13Exact matchPorto, PortugalHQ recorded Nov 3, 202611-5022 contacts →

Exact match

“DouroECI is a game changer: a company that blends a comprehensive approach to the water cycle management, from planning, to design, to infrastructure asset management, to business…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
14Exact matchMontemor-o-velho, PortugalHQ recorded Nov 3, 202651-20022 contacts →

Exact match

“Projetamos, construímos e mantemos soluções de tratamento, reaproveitamento e abastecimento de Água ajustadas às necessidades de cada cliente.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
15Exact matchGondomar, PortugalHQ recorded Nov 3, 202651-20021 contacts →

Exact match

“A Águas de Gondomar assegura o fornecimento de água para consumo público e o tratamento de águas residuais no concelho, cumprindo as exigências de um regular, contínuo e eficiente…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
16Exact matchFigueira Da Foz, PortugalHQ recorded Nov 3, 202611-5020 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
17Exact matchTavira, PortugalHQ recorded Nov 3, 2026201-50019 contacts →

Exact match

“A Taviraverde é responsável pelas atividades de ampliação, renovação, manutenção e exploração dos seguintes sistemas: 1.Sistema municipal de águas de abastecimento público…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
18Exact matchMatosinhos, PortugalHQ recorded Nov 3, 202611-5015 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
19Exact matchFaro, PortugalHQ recorded Nov 3, 202611-5010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
20Exact matchCastelo Da Maia, PortugalHQ recorded Nov 3, 202611-509 contacts →

Exact match

“A FDuarte Lda, fundada em 1982 pelo Eng.º António Rocha Duarte, rapidamente se posicionou no mercado, estabelecendo diversas parcerias de trabalho com as mais prestigiadas…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
21Exact matchVila Nova De Famalicão, PortugalHQ recorded Nov 3, 202611-509 contacts →

Exact match

“Criada em 2003, a Ambiágua tornou-se parte integrante do Grupo ACA em 2009.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
22Exact matchMontijo, PortugalHQ recorded Nov 3, 202651-2008 contacts →

Exact match

“The ECOSERVIÇOS GROUP exists since 1983 with the establishment of the company that gave it its name, which is currently the holding company.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
23Exact matchTorres Vedras, PortugalHQ recorded Nov 3, 202611-508 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
24Exact matchPalmela, PortugalHQ recorded Nov 3, 20261-108 contacts →

Exact match

“A AquaExpert W & PS tem vindo a desenvolver e a afirmar-se no mercado em áreas que são fundamentais para os nossos clientes como sejam- Concepção, Fornecimento Operação de…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
25Exact matchAlmancil, PortugalHQ recorded Nov 3, 202611-506 contacts →

Exact match

“Fundada em 1981, a Albombas surgiu com o objectivo de preencher uma lacuna existente no sector dos Sistemas de Bombagem, alicerçando o seu desempenho quantitativo e qualitativo…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase

Showing 25 of 56 water & wastewater contract operating services based in Portugal

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Water & wastewater contract operating services based in Portugal at a glance

As of Nov 3, 2026
29.3%Verified-email coverage
46.8Average contacts per company
11-50Median size (employees)
8.9%Largest-city concentration · Lisbon
Nov 3, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
17
51-200
9
201-500
5
501-1,000
6
1,001-5,000
2

Email recency for this list is measured worldwide rather than for Portugal, so it is reported there. Company counts and contact totals on this page are exact for Portugal, over 56 companies.

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.
What qualifies
Company records associated with Portugal whose business descriptions match “water & wastewater contract operating 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 769 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 3, 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.

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 “water & wastewater contract operating services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water & wastewater contract operating services are there based in Portugal?

RevenueBase identified 56 company matches for water & wastewater contract operating services associated with Portugal 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?

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

Which city has the most water & wastewater contract operating services?

Lisbon leads with 5 company records, followed by Barcelos (2) and Cartaxo (2).

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 769 professional contacts with verified work emails tracked across these 56 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 3, 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.