Company lists · Data refreshed September 2026

Top 25 Wastewater engineering and design firms based in Portugal

Name: Wastewater engineering and design firms based in Portugal
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 69 companies tracked

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

This list covers wastewater engineering and design firms 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

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 wastewater engineering and design firms based in Portugal, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to wastewater engineering and design firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	AGS Water Solutions	Indirect evidence	Paço De Arcos, PortugalHQ checked Sep 19, 2026	51-200	502 contacts →
	Indirect 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, 2026
2	Sacyr Somague	Strong evidence	Lisbon, PortugalHQ checked Sep 19, 2026	1,001-5,000	407 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
3	Prospectiva	Partial evidence	Lisboa, PortugalHQ checked Sep 19, 2026	51-200	115 contacts →
	Partial evidence “PROSPECTIVA is an Engineering Consultancy Company with 40 years of activity (domestic and overseas), 120 people, 2 main areas of activity: 1.” Source: RevenueBase Database · checked Sep 19, 2026
4	CTGA	Indirect evidence	Coimbra, PortugalHQ checked Sep 19, 2026	51-200	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 19, 2026
5	Bondalti Water Enkrott	Indirect evidence	Abrunheira, PortugalHQ checked Sep 19, 2026	201-500	78 contacts →
	Indirect 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, 2026
6	Aqualogus	Partial evidence	Parque Das Nações, PortugalHQ checked Sep 19, 2026	51-200	59 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
7	Ppsec Engenharia	Indirect evidence	Gondomar, PortugalHQ checked Sep 19, 2026	11-50	32 contacts →
	Indirect evidence “A PAULO PEREIRA -SERVIÇOS DE ENGENHARIA CIVIL É UMA EMPRESA COM 27 ANOS DE EXPERIÊNCIA NA ÁREA DE PROJETOS DE ENGENHARIA.” Source: RevenueBase Database · checked Sep 19, 2026
8	NBS Water Engineering	Partial evidence	Aveiro, PortugalHQ checked Sep 19, 2026	11-50	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 19, 2026
9	Engidro Engineering Solutions	Indirect evidence	Lisbon, PortugalHQ checked Sep 19, 2026	11-50	24 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
10	Douroeci Water Management	Partial evidence	Porto, PortugalHQ checked Sep 19, 2026	11-50	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 19, 2026
11	H2tec	Indirect evidence	Montemor-o-velho, PortugalHQ checked Sep 19, 2026	51-200	19 contacts →
	Indirect evidence “Projetamos, construímos e mantemos soluções de tratamento, reaproveitamento e abastecimento de Água ajustadas às necessidades de cada cliente.” Source: RevenueBase Database · checked Sep 19, 2026
12	Hidromod, LDA	Indirect evidence	Porto Salvo, PortugalHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “Hidromod, Modelação em Engenharia, Lda.(HIDROMOD), is a Portuguese technical consulting company with a strong focus on developing and applying advanced software for environmental…” Source: RevenueBase Database · checked Sep 19, 2026
13	Linha D'água	Indirect evidence	Massamá, PortugalHQ checked Sep 19, 2026	11-50	16 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
14	Bianna Portugal	Indirect evidence	Carnaxide, PortugalHQ checked Sep 19, 2026	1-10	13 contacts →
	Indirect evidence “Somos fabricantes de equipamentos, concebemos e construímos linhas de tratamento de resíduos e oferecemos um conjunto diversificado de projetos “chave na mão”.” Source: RevenueBase Database · checked Sep 19, 2026
15	Adventech	Partial evidence	Sao Joao Da Madeira, PortugalHQ checked Sep 19, 2026	11-50	9 contacts →
	Partial evidence “Adventech is a leading EPC (Engineering, Procurement, and Construction) and O&M (Operation & Maintenance) company specializing in advanced environmental technologies.” Source: RevenueBase Database · checked Sep 19, 2026
16	Fduarte, LDA	Indirect evidence	Castelo Da Maia, PortugalHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
17	Aquaexpert	Indirect evidence	Palmela, PortugalHQ checked Sep 19, 2026	1-10	8 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
18	Albombas	Indirect evidence	Almancil, PortugalHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
19	Aluline Portugal	Indirect evidence	Seixal, PortugalHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
20	Grauon	Indirect evidence	Guimarães, PortugalHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence “A GrauON é uma empresa de engenharia dedicada ao desenvolvimento de projetos e consultoria técnica para edifícios, equipamentos e infraestruturas.” Source: RevenueBase Database · checked Sep 19, 2026
21	Moinhos Água E Ambiente	Indirect evidence	Santo Tirso, PortugalHQ checked Sep 19, 2026	11-50	4 contacts →
	Indirect evidence “Tratamento de Água, Águas Residuais e Reutilização” Source: RevenueBase Database · checked Sep 19, 2026
22	Wscm Water Services Consulting And Management, LDA	Indirect evidence	Portugal Portugal, PortugalHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “WSCM - Water Services Consulting & Management Unimos conhecimento, experiência e inovação para responder, com pragmatismo e foco em resultados, aos desafios do setor da água.” Source: RevenueBase Database · checked Sep 19, 2026
23	Acquafloc, LDA	Indirect evidence	Seia, PortugalHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “A Acquafloc é uma empresa líder de mercado com mais de 10 anos de experiência no tratamento de águas residuais e industriais.” Source: RevenueBase Database · checked Sep 19, 2026
24	Esferabrutal	Indirect evidence	Famalicão, PortugalHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “Mantendo como base, as suas raízes e a sua “estrutura-mãe”.” Source: RevenueBase Database · checked Sep 19, 2026
25	wave.consulting	Indirect evidence	Loures, PortugalHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “WAVE is a service and solutions provider for the environmental sector.” Source: RevenueBase Database · checked Sep 19, 2026

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: wastewater engineering and design firms. 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 wastewater engineering and design firms.
Partial evidence: Its own public description names part of wastewater engineering and design firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name wastewater engineering and design firms. 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 69 wastewater engineering and design firms based in Portugal

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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)

13.0%Largest-city concentration · Lisboa

Sep 19, 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 69 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 wastewater engineering and design firms, 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 “wastewater engineering and design firms”. 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 wastewater engineering and design firms), 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 wastewater engineering and design firms, 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, 244 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 wastewater engineering and design firms, 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 wastewater engineering and design firms are there based in Portugal?

RevenueBase identified 69 wastewater engineering and design firms 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?

AGS Water Solutions, headquartered in Oeiras, tops this list with the largest team on record.

Which city has the most wastewater engineering and design firms?

Lisboa leads with 9 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 244 verified decision-maker contacts tracked across these 69 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.