Company lists · Data refreshed September 2026
Top 25 Water utilities based in Portugal
RevenueBase identified 85 water utilities headquartered in Portugal as of September 2026 and tracks 3,579 professional contacts across them, including 1,094 with verified work emails. Lisboa is the largest hub.
This list covers water utilities headquartered in Portugal, 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 16, 2026.
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 water utilities based in Portugal
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 633 contacts → | ||||
Indirect evidence “A EPAL- Empresa Portuguesa das Águas Livres SA, é a maior e mais antiga empresa portuguesa do setor da água, sendo hoje uma empresa de referência a nível mundial e tendo por…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 502 contacts → | ||||
Partial evidence “AGS – Administração e Gestão de Sistemas de Salubridade, SA focuses on the preservation of the environment, acting throughout the entire water cycle.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 269 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 254 contacts → | ||||
Partial evidence “Águas do Porto is the municipal water utility company of Porto, Portugal.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 253 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 202 contacts → | ||||
Indirect evidence “A Águas do Norte, S.A.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 141 contacts → | ||||
Indirect evidence “Os SMAS - Serviços Municipalizados de Água e Saneamento do Município de Almada, são um serviço público de interesse local.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 90 contacts → | ||||
Indirect evidence “A CTGA assume-se como uma empresa especializada na elaboração de estudos e projetos nas áreas das Engenharias Hidráulica, Sanitária e Ambiental, bem como na exploração e…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 78 contacts → | ||||
Partial evidence “At Enkrott we believe in science and technology for the development of solutions aiming an efficient water use.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 57 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 53 contacts → | ||||
Indirect evidence “A Águas do Douro e Paiva, S.A.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 45 contacts → | ||||
Indirect evidence “Águas de Gaia, EM, SA, é uma empresa municipal detida a 100% pela Câmara Municipal de Vila Nova de Gaia representando um instrumento da sua política para o concelho.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 43 contacts → | ||||
Indirect evidence “Os Serviços Intermunicipalizados de Águas e Resíduos de Loures e Odivelas foram criados em 2014.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 40 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 29 contacts → | ||||
Indirect evidence “A AdRA - Águas da Região de Aveiro, S.A, é a entidade que gere e explora em regime de parceria pública os serviços de água e saneamento nos municípios de gueda…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 29 contacts → | ||||
Indirect evidence “A EMARP tem por missão, a gestão de serviços de interesse geral e promoção do desenvolvimento local e regional, nos domínios- Dos sistemas públicos de captação, tratamento e…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 26 contacts → | ||||
Partial evidence “A NBS Water Engineering é uma plataforma integrada de engenharia da água dedicada ao desenvolvimento de soluções sustentáveis para o setor hídrico e ambiental.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 23 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 22 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 22 contacts → | ||||
Indirect evidence “A ARM – Águas e Resíduos da Madeira, S.A.(ARM), é uma empresa de capitais exclusivamente públicos que tem por objeto a exploração e a gestão do sistema multimunicipal de águas e…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 20 contacts → | ||||
Indirect evidence “A Empresa Municipal Penafiel Verde é responsável pela gestão e exploração dos sistemas públicos de captação, distribuição de água potável e de drenagem e tratamento de águas…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 19 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 18 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 17 contacts → | ||||
Indirect evidence “A Taviraverde é responsável pelas atividades de ampliação, renovação, manutenção e exploração dos seguintes sistemas: 1.Sistema municipal de águas de abastecimento público…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 17 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 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: water utilities. 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 water utilities.
- Partial evidence
- Its own public description names part of water utilities, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name water utilities. 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 85 water utilities based in Portugal
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Water utilities based in Portugal at a glance
As of Sep 16, 2026Companies by employee count
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 85 companies.
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 water utilities, 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.
- What qualifies
- Companies headquartered in Portugal whose own description of what they do matches “water utilities”. 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 water utilities), 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 water utilities, and records with no verified work email. Companies headquartered outside Portugal are excluded even when they keep an office there.
- 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, 1,094 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 16, 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.
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 water utilities, 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 water utilities are there based in Portugal?
RevenueBase identified 85 water utilities headquartered in Portugal 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?
Epal Empresa Portuguesa DAS Águas Livres, SA, headquartered in Lisboa, tops this list with the largest team on record.
Which city has the most water utilities?
Lisboa leads with 5 headquartered companies, followed by Aveiro (4) and Porto (3).
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 1,094 verified decision-maker contacts tracked across these 85 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 16, 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.