Company lists · Data refreshed September 2026

Top 25 Water utility infrastructure contractors based in Spain

Name: Water utility infrastructure contractors based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 92 companies tracked

RevenueBase identified 92 water utility infrastructure contractors headquartered in Spain as of September 2026 and tracks 3,032 professional contacts across them, including 371 with verified work emails. Madrid is the largest hub.

This list covers water utility infrastructure contractors headquartered in Spain, 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

92Companies

3,032Contacts tracked

371Verified emails

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The 25 largest water utility infrastructure contractors based in Spain

Ranked by team size

Top 25 of 92 water utility infrastructure contractors based in Spain, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to water utility infrastructure contractors: 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	Grupo Lantania	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	1,001-5,000	475 contacts →
	Indirect evidence “En Lantania hacemos realidad grandes infraestructuras de transporte, agua y energía con el entusiasmo de una empresa joven y la solidez que nos aporta la experiencia.” Source: RevenueBase Database · checked Sep 19, 2026
2	GS Inima Environment	Partial evidence	Madrid, SpainHQ checked Sep 19, 2026	1,001-5,000	373 contacts →
	Partial evidence “Positioned as one of the companies with the largest number of plants in terms of concessions, GS Inima is a world benchmark in the water sector acting in all phases of the…” Source: RevenueBase Database · checked Sep 19, 2026
3	Facsa. Ciclo Integral DEL Agua	Indirect evidence	Castellón De La Plana, SpainHQ checked Sep 19, 2026	1,001-5,000	305 contacts →
	Indirect evidence “Facsa, empresa ‘origen’ de Nealis, es una referencia en el territorio nacional en la gestión global de los recursos hídricos.” Source: RevenueBase Database · checked Sep 19, 2026
4	Espina Obras Hidraulicas S.A	Indirect evidence	Santiago De Compostela, SpainHQ checked Sep 19, 2026	201-500	209 contacts →
	Indirect evidence “ESPINA is a constantly growing company that has been expanding its areas of activity and services in Spain since 1989 and in Uruguay and the Ivory Coast since 1995.” Source: RevenueBase Database · checked Sep 19, 2026
5	Cadagua, A Ferrovial Company	Partial evidence	Bilbao-bilbo, SpainHQ checked Sep 19, 2026	51-200	173 contacts →
	Partial evidence “We specialize in the design, construction, and operation of water treatment facilities.” Source: RevenueBase Database · checked Sep 19, 2026
6	Almar Water Solutions	Strong evidence	Madrid, SpainHQ checked Sep 19, 2026	51-200	148 contacts →
	Strong evidence “Almar Water Solutions is a leading global water infrastructure development and services business creating innovative, utility-scale, solutions for both municipal and industrial…” Source: RevenueBase Database · checked Sep 19, 2026
7	Gestión Y Técnicas DEL Agua S.A. Gestagua	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	201-500	143 contacts →
	Indirect evidence “En Gestagua, filial española del grupo Saur, los Municipios encuentran no sólo un operador eficiente para todas las fases del Ciclo del Agua, sino un socio activo para la gestión…” Source: RevenueBase Database · checked Sep 19, 2026
8	Espina & Delfín	Indirect evidence	Santiago De Compostela, SpainHQ checked Sep 19, 2026	201-500	112 contacts →
	Indirect evidence “Somos especialistas en la gestión integral del ciclo del agua y en la construcción de obras hidráulicas.” Source: RevenueBase Database · checked Sep 19, 2026
9	Aguas DE Alicante	Indirect evidence	Alicante, SpainHQ checked Sep 19, 2026	201-500	85 contacts →
	Indirect evidence “Aguas Municipalizadas de Alicante, Empresa Mixta (Aguas de Alicante), cuya sede social está ubicada en la calle Alona 31 de Alicante (España), está participada en un 50 % por el…” Source: RevenueBase Database · checked Sep 19, 2026
10	Aqlara Ciclo Integral DEL Agua	Indirect evidence	Valencia, SpainHQ checked Sep 19, 2026	51-200	81 contacts →
	Indirect evidence “Somos una empresa dedicada a la gestión de servicios de abastecimiento domiciliario de agua potable y explotación de sistemas de saneamiento de agua residual.” Source: RevenueBase Database · checked Sep 19, 2026
11	Aguas DE Córdoba	Indirect evidence	Córdoba, SpainHQ checked Sep 19, 2026	201-500	47 contacts →
	Indirect evidence “Aguas de Córdoba es la nueva imagen comercial con la que la Diputación de Córdoba, a través de su empresa gestora EMPROACSA con 25 años de experiencia, sigue avanzando en la tarea…” Source: RevenueBase Database · checked Sep 19, 2026
12	Marea, Medio Ambiente, Residuos Y Agua	Indirect evidence	Sevilla, SpainHQ checked Sep 19, 2026	11-50	38 contacts →
	Indirect evidence “Marea es una empresa del grupo RUSVEL de construcción y servicios, con una dilatada experiencia en el ciclo integral del agua y otros campos como la industria, la agricultura, el…” Source: RevenueBase Database · checked Sep 19, 2026
13	Gipuzkoako UR Kontsortzioa	Indirect evidence	San Sebastián, SpainHQ checked Sep 19, 2026	201-500	37 contacts →
	Indirect evidence “Impulsado por un número muy importante de municipios gipuzkoanos, el Consorcio de Aguas de Gipuzkoa nació en 1990 con el cometido de construir una nueva y moderna red de…” Source: RevenueBase Database · checked Sep 19, 2026
14	Pavagua Ambiental	Indirect evidence	Valencia, SpainHQ checked Sep 19, 2026	51-200	36 contacts →
	Indirect evidence “PAVAGUA AMBIENTAL es una empresa de servicios especializada en la gestión del ciclo integral del agua y el cuidado del medioambiente.” Source: RevenueBase Database · checked Sep 19, 2026
15	Fluidra Commercial Pool	Partial evidence	Sant Cugat Del Vallès, SpainHQ checked Sep 19, 2026	1,001-5,000	34 contacts →
	Partial evidence “Fluidra Commercial Pool and Wellness is a Fluidra Business Unit with extensive experience in designing, developing and implementing water facilities all around the world.” Source: RevenueBase Database · checked Sep 19, 2026
16	Ansareo Grupo	Indirect evidence	Ortuella, SpainHQ checked Sep 19, 2026	1,001-5,000	32 contacts →
	Indirect evidence “Ofrecemos soluciones en cuanto a obra civil, servicios de limpiezas industriales, equipos de bombeo, servicios de jardinería, y un amplio abanico de servicios a disposición de…” Source: RevenueBase Database · checked Sep 19, 2026
17	Aigües DE Mataró SA	Indirect evidence	Mataro, SpainHQ checked Sep 19, 2026	51-200	28 contacts →
	Indirect evidence “Aigües de Mataró, SA (AMSA) és una societat municipal amb domicili al carrer Pitàgores, 1-7 de Mataró propietat de l’Ajuntament de Mataró, que s’encarrega de la gestió integral de…” Source: RevenueBase Database · checked Sep 19, 2026
18	Dinotec	Indirect evidence	Sevilla, SpainHQ checked Sep 19, 2026	11-50	27 contacts →
	Indirect evidence “DINOTEC Sociedad de Aguas y Medio Ambiente S.L.” Source: RevenueBase Database · checked Sep 19, 2026
19	OPS Infraestructuras Y Servicios Hidraulicos SL	Indirect evidence	Humanes De Madrid, SpainHQ checked Sep 19, 2026	51-200	25 contacts →
	Indirect evidence “OPS INFRAESTRUCTURAS Y SERVICIOS HIDRAULICOS SL is a construction company based out of CALLE DALIA, 4, MADRID, Madrid, Spain.” Source: RevenueBase Database · checked Sep 19, 2026
20	Aguas DE Valencia S.A	Indirect evidence	Valencia, SpainHQ checked Sep 19, 2026	1,001-5,000	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
21	Eminfor S.L	Indirect evidence	Igualada, SpainHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “Somos una empresa dedicada al tratamiento de aguas, urbanas e industriales, con una amplia trayectoria de más de 26 años.” Source: RevenueBase Database · checked Sep 19, 2026
22	TYG González	Indirect evidence	Pulpí, SpainHQ checked Sep 19, 2026	51-200	9 contacts →
	Indirect evidence “TYG González somos una empresa especializada en la proyección y ejecución de todo tipo de obras hidráulicas a nivel nacional.” Source: RevenueBase Database · checked Sep 19, 2026
23	Tecnicas Valencianas DEL Agua S.A	Indirect evidence	Valencia, SpainHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
24	Agnua Ingeniería	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “Somos una empresa de ingeniería y consultoría dedicada al diseño de plantas de tratamiento de agua.” Source: RevenueBase Database · checked Sep 19, 2026
25	Beyg Riegos, SL	Indirect evidence	La Puebla De Alfindén, SpainHQ checked Sep 19, 2026	11-50	2 contacts →
	Indirect evidence “Dedicada al diseño, ingeniería, instalación y suministro, de las siguientes actividades del sector servicios para el agua-Redes de abastecimiento: urbanización hidráulica de…” 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: water utility infrastructure contractors. 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 utility infrastructure contractors.
Partial evidence: Its own public description names part of water utility infrastructure contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water utility infrastructure contractors. 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 92 water utility infrastructure contractors based in Spain

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Water utility infrastructure contractors based in Spain at a glance

As of Sep 19, 2026

12.2%Verified-email coverage

33.0Average contacts per company

11-50Median size (employees)

8.7%Largest-city concentration · Madrid

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 Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 92 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 utility infrastructure contractors, 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 Spain whose own description of what they do matches “water utility infrastructure contractors”. 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 utility infrastructure contractors), 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 utility infrastructure contractors, and records with no verified work email. Companies headquartered outside Spain 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, 371 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 utility infrastructure contractors, 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 utility infrastructure contractors are there based in Spain?

RevenueBase identified 92 water utility infrastructure contractors headquartered in Spain 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?

Grupo Lantania, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most water utility infrastructure contractors?

Madrid leads with 8 headquartered companies, followed by Valencia (5) and Mataro (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 371 verified decision-maker contacts tracked across these 92 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.