Company lists · Data refreshed September 2026

Top 19 Municipal wastewater treatment contractors based in Portugal

Name: Municipal wastewater treatment contractors based in Portugal
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 44 companies tracked

RevenueBase identified 44 company matches for municipal wastewater treatment contractors associated with Portugal as of September 2026 and tracks 1,372 professional contacts across them, including 386 with verified work emails. Lisbon is the largest hub.

This list covers company matches for municipal wastewater treatment contractors 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 September 17, 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 Sep 17, 2026 How this list was built

44Companies

1,372Contacts tracked

386Verified emails

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The 19 largest municipal wastewater treatment contractors based in Portugal

Ranked by team size

Top 19 of 44 company matches for municipal wastewater treatment contractors based in Portugal, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	AGS Water Solutions	Exact match	Paço De Arcos, PortugalHQ recorded Sep 17, 2026	51-200	502 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 · Sep 17, 2026 · View company records in RevenueBase
2	Águas DO Norte, S.A	Exact match	Vila Real, PortugalHQ recorded Sep 17, 2026	501-1,000	202 contacts →
	Exact match “A Águas do Norte, S.A.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Smas DE Almada	Exact match	Pragal - Almada, PortugalHQ recorded Sep 17, 2026	201-500	141 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 · Sep 17, 2026 · View company records in RevenueBase
4	CTGA	Exact match	Coimbra, PortugalHQ recorded Sep 17, 2026	51-200	90 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Bondalti Water Enkrott	Exact match	Abrunheira, PortugalHQ recorded Sep 17, 2026	201-500	78 contacts →
	Exact match “At Enkrott we believe in science and technology for the development of solutions aiming an efficient water use.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	AGERE	Exact match	Braga, PortugalHQ recorded Sep 17, 2026	501-1,000	57 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 · Sep 17, 2026 · View company records in RevenueBase
7	NBS Water Engineering	Exact match	Aveiro, PortugalHQ recorded Sep 17, 2026	11-50	26 contacts →
	Exact match “A NBS Water Engineering é uma plataforma integrada de engenharia da água dedicada ao desenvolvimento de soluções sustentáveis para o setor hídrico e ambiental.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Simdouro	Exact match	Vila Nova De Gaia, PortugalHQ recorded Sep 17, 2026	11-50	22 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 · Sep 17, 2026 · View company records in RevenueBase
9	ADG Águas DE Gondomar SA	Exact match	Gondomar, PortugalHQ recorded Sep 17, 2026	51-200	19 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 · Sep 17, 2026 · View company records in RevenueBase
10	H2tec	Exact match	Montemor-o-velho, PortugalHQ recorded Sep 17, 2026	51-200	19 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 · Sep 17, 2026 · View company records in RevenueBase
11	Vimágua	Exact match	Guimarães, PortugalHQ recorded Sep 17, 2026	11-50	18 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Bianna Portugal	Exact match	Carnaxide, PortugalHQ recorded Sep 17, 2026	1-10	13 contacts →
	Exact match “Somos fabricantes de equipamentos, concebemos e construímos linhas de tratamento de resíduos e oferecemos um conjunto diversificado de projetos “chave na mão”.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Adventech	Exact match	Sao Joao Da Madeira, PortugalHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “Adventech is a leading EPC (Engineering, Procurement, and Construction) and O&M (Operation & Maintenance) company specializing in advanced environmental technologies.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Fduarte, LDA	Exact match	Castelo Da Maia, PortugalHQ recorded Sep 17, 2026	11-50	8 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 · Sep 17, 2026 · View company records in RevenueBase
15	Aquaexpert	Exact match	Palmela, PortugalHQ recorded Sep 17, 2026	1-10	8 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 · Sep 17, 2026 · View company records in RevenueBase
16	Albombas	Exact match	Almancil, PortugalHQ recorded Sep 17, 2026	11-50	7 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 · Sep 17, 2026 · View company records in RevenueBase
17	Aluline Portugal	Exact match	Seixal, PortugalHQ recorded Sep 17, 2026	11-50	7 contacts →
	Exact match “A Aluline Portugal (pertencendo ao Grupo inglês ALULINE Group) é uma referência no mercado do fornecimento de soluções de pré tratamento de águas residuais e de tecnologias de…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Acquafloc, LDA	Exact match	Seia, PortugalHQ recorded Sep 17, 2026	1-10	1 contacts →
	Exact match “A Acquafloc é uma empresa líder de mercado com mais de 10 anos de experiência no tratamento de águas residuais e industriais.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Hidroprocessos	Exact match	Ramada, PortugalHQ recorded Sep 17, 2026	1-10	1 contacts →
	Exact match “A HIDROPROCESSOS é uma empresa de consultoria e engenharia de infraestruturas, com maior especialização na área do ambiente, em particular, na vertente de engenharia sanitária.” Recorded in the RevenueBase company graph · Sep 17, 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 contractors”. 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 19 of 44 municipal wastewater treatment contractors based in Portugal

See the full list, filter by size, metro and specialty, and access 386 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Municipal wastewater treatment contractors based in Portugal at a glance

As of Sep 17, 2026

28.1%Verified-email coverage

31.2Average contacts per company

11-50Median size (employees)

6.8%Largest-city concentration · Lisbon

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 44 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 “municipal wastewater treatment contractors” 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 386 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 17, 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 “municipal wastewater treatment contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many municipal wastewater treatment contractors are there based in Portugal?

RevenueBase identified 44 company matches for municipal wastewater treatment contractors associated with Portugal 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?

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 municipal wastewater treatment contractors?

Lisbon leads with 3 company records, followed by Aveiro (2) and Guimaraes (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 386 professional contacts with verified work emails tracked across these 44 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 17, 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.