Company lists · Data refreshed September 2026

Top 25 Wastewater engineering and design firms based in Portugal

RevenueBase identified 69 company matches for wastewater engineering and design firms associated with Portugal as of September 2026 and tracks 1,898 professional contacts across them, including 244 with verified work emails. Lisbon is the largest hub.

This list covers company matches for wastewater engineering and design firms 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 19, 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 19, 2026 How this list was built
69Companies
1,898Contacts tracked
244Verified emails
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The 25 largest wastewater engineering and design firms based in Portugal

Ranked by team size
Top 25 of 69 company matches for wastewater engineering and design firms based in Portugal, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 matchPaço De Arcos, PortugalHQ recorded Sep 19, 202651-200502 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 19, 2026 · View company records in RevenueBase
2Exact matchLisbon, PortugalHQ recorded Sep 19, 20261,001-5,000407 contacts →

Exact match

“Sacyr Somague, part of Sacyr Group, offers a high quality global engineering service, conceiving, designing and carrying out large-scale works, in areas such as public works (sea…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchLisbon, PortugalHQ recorded Sep 19, 202651-200115 contacts →

Exact match

“PROSPECTIVA is an Engineering Consultancy Company with 40 years of activity (domestic and overseas), 120 people, 2 main areas of activity: 1.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchCoimbra, PortugalHQ recorded Sep 19, 202651-20090 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 19, 2026 · View company records in RevenueBase
5Exact matchAbrunheira, PortugalHQ recorded Sep 19, 2026201-50078 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 19, 2026 · View company records in RevenueBase
6Exact matchParque Das Nações, PortugalHQ recorded Sep 19, 202651-20059 contacts →

Exact match

“AQUALOGUS was established in 1996 by engineering consultants with a vast experience in the development of studies and projects in the fields of water resources, hydraulics…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchGondomar, PortugalHQ recorded Sep 19, 202611-5032 contacts →

Exact match

“A PAULO PEREIRA -SERVIÇOS DE ENGENHARIA CIVIL É UMA EMPRESA COM 27 ANOS DE EXPERIÊNCIA NA ÁREA DE PROJETOS DE ENGENHARIA.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchAveiro, PortugalHQ recorded Sep 19, 202611-5026 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 19, 2026 · View company records in RevenueBase
9Exact matchLisbon, PortugalHQ recorded Sep 19, 202611-5024 contacts →

Exact match

“A ENGIDRO é uma empresa portuguesa de consultoria em engenharia, fundada em 1979, tendo desde início centrado a sua actividade na elaboração de estudos e projectos relacionados…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchPorto, PortugalHQ recorded Sep 19, 202611-5023 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 · Sep 19, 2026 · View company records in RevenueBase
11Exact matchMontemor-o-velho, PortugalHQ recorded Sep 19, 202651-20019 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 19, 2026 · View company records in RevenueBase
12Exact matchPorto Salvo, PortugalHQ recorded Sep 19, 202611-5018 contacts →

Exact match

“Hidromod, Modelação em Engenharia, Lda.(HIDROMOD), is a Portuguese technical consulting company with a strong focus on developing and applying advanced software for environmental…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchMassamá, PortugalHQ recorded Sep 19, 202611-5016 contacts →

Exact match

“Fundada no ano a Linha D’Água é uma empresa de Engenharia especializada em soluções de Automação, SCADA, Telegestão, Instrumentação Industrial, Monitorização Remota, Tratamento de…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchCarnaxide, PortugalHQ recorded Sep 19, 20261-1013 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 19, 2026 · View company records in RevenueBase
15Exact matchSao Joao Da Madeira, PortugalHQ recorded Sep 19, 202611-509 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 19, 2026 · View company records in RevenueBase
16Exact matchCastelo Da Maia, PortugalHQ recorded Sep 19, 202611-508 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 19, 2026 · View company records in RevenueBase
17Exact matchPalmela, PortugalHQ recorded Sep 19, 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 · Sep 19, 2026 · View company records in RevenueBase
18Exact matchAlmancil, PortugalHQ recorded Sep 19, 202611-507 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 19, 2026 · View company records in RevenueBase
19Exact matchSeixal, PortugalHQ recorded Sep 19, 202611-507 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 19, 2026 · View company records in RevenueBase
20Exact matchGuimarães, PortugalHQ recorded Sep 19, 20261-105 contacts →

Exact match

“A GrauON é uma empresa de engenharia dedicada ao desenvolvimento de projetos e consultoria técnica para edifícios, equipamentos e infraestruturas.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchSanto Tirso, PortugalHQ recorded Sep 19, 202611-504 contacts →

Exact match

“Tratamento de Água, Águas Residuais e Reutilização”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchPortugal Portugal, PortugalHQ recorded Sep 19, 20261-102 contacts →

Exact match

“WSCM - Water Services Consulting & Management Unimos conhecimento, experiência e inovação para responder, com pragmatismo e foco em resultados, aos desafios do setor da água.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchSeia, PortugalHQ recorded Sep 19, 20261-101 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 19, 2026 · View company records in RevenueBase
24Exact matchFamalicão, PortugalHQ recorded Sep 19, 20261-101 contacts →

Exact match

“Mantendo como base, as suas raízes e a sua “estrutura-mãe”.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchLoures, PortugalHQ recorded Sep 19, 20261-101 contacts →

Exact match

“WAVE is a service and solutions provider for the environmental sector.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 69 wastewater engineering and design firms based in Portugal

See the full list, filter by size, metro and specialty, and access 244 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Wastewater engineering and design firms based in Portugal at a glance

As of Sep 19, 2026
12.9%Verified-email coverage
27.5Average contacts per company
1-10Median size (employees)
15.9%Largest-city concentration · Lisbon
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
38
11-50
21
51-200
7
201-500
1
501-1,000
1
1,001-5,000
1

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 69 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 “wastewater engineering and design firms” 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 244 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 19, 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 “wastewater engineering and design firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wastewater engineering and design firms are there based in Portugal?

RevenueBase identified 69 company matches for wastewater engineering and design firms 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 wastewater engineering and design firms?

Lisbon leads with 11 company records, followed by Guimaraes (4) and Porto (4).

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 244 professional contacts with verified work emails tracked across these 69 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 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 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.