Company lists · Data refreshed September 2026
Top 25 Water companies based in Portugal
RevenueBase identified 127 water companies headquartered in Portugal as of September 2026 and tracks 4,233 professional contacts across them, including 1,319 with verified work emails. Lisboa is the largest hub.
This list covers water companies 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 19, 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 companies 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 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 502 contacts → | ||||
Strong 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 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 269 contacts → | ||||
Strong 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 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 254 contacts → | ||||
Strong evidence “Águas do Porto is the municipal water utility company of Porto, Portugal.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 253 contacts → | ||||
Strong 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 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 202 contacts → | ||||
Indirect evidence “A Águas do Norte, S.A.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 178 contacts → | ||||
Indirect evidence “Águas do Tejo Atlântico, S.A, is a company committed to sustainable wastewater management in the Greater Lisbon and West region.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 98 contacts → | ||||
Strong evidence “Be Water is a portuguese company with an extensive experience in managing the water cycle.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 86 contacts → | ||||
Strong evidence “Janz enables utilities and cities, in the 5 continents, to manage drinking water services in a reliable and accurate way.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 78 contacts → | ||||
Strong evidence “At Enkrott we believe in science and technology for the development of solutions aiming an efficient water use.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 55 contacts → | ||||
Strong evidence “Water treatment, reverse osmosis, desalination, membranes, chemicals, service, legionella control” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 53 contacts → | ||||
Indirect evidence “A Águas do Douro e Paiva, S.A.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 52 contacts → | ||||
Indirect evidence “A Empresa Municipal Águas de Coimbra assume a missão de abastecimento de água e drenagem de águas residuais e pluviais no concelho de Coimbra.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 43 contacts → | ||||
Indirect evidence “Os Serviços Intermunicipalizados de Águas e Resíduos de Loures e Odivelas foram criados em 2014.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 27 contacts → | ||||
Indirect evidence “Uma empresa que cresce diariamente com o apoio e exigência dos seus clientes, assim como, com o saber fazer de uma equipa experiente e motivada para fazer melhor.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 26 contacts → | ||||
Strong 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 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 24 contacts → | ||||
Indirect evidence “KNOWLEDGE to protect your FUTURE.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 23 contacts → | ||||
Strong 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 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 22 contacts → | ||||
Strong evidence “MEBRA is a Portuguese company, offering water and gas distribution and management solutions, with a large portfolio of sanitary products, irrigation systems for garden and…” Source: RevenueBase Database · checked Sep 19, 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 companies. 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 companies.
- Partial evidence
- Its own public description names part of water companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name water companies. 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 127 water companies based in Portugal
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Water companies based in Portugal at a glance
As of Sep 19, 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 127 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 companies, 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 companies”. 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 companies), 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 companies, 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, 1,319 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 19, 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 companies, 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 companies are there based in Portugal?
RevenueBase identified 127 water companies 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 companies?
Lisboa leads with 14 headquartered companies, followed by Porto (6) and Aveiro (4).
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 1,319 verified decision-maker contacts tracked across these 127 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 19, 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.