Company lists · Data refreshed November 2026

Top 25 Heavy construction contractors based in Spain

RevenueBase identified 768 company matches for heavy construction contractors associated with Spain as of November 2026 and tracks 25,609 professional contacts across them, including 2,703 with verified work emails. Madrid is the largest hub.

This list covers company matches for heavy construction contractors associated with Spain, 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 November 6, 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 Nov 6, 2026 How this list was built
768Companies
25,609Contacts tracked
2,703Verified emails
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The 25 largest heavy construction contractors based in Spain

Ranked by team size
Top 25 of 768 company matches for heavy construction contractors based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchMadrid, SpainHQ recorded Nov 6, 202610001+2,032 contacts →

Exact match

“DRAGADOS, S.A.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMadrid, SpainHQ recorded Nov 6, 20265,001-10,0001,859 contacts →

Exact match

“Isolux is a global benchmark in energy, water and environmental, road and railways infrastructure with presence in more than 35 countries on four continents.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchTres Cantos, SpainHQ recorded Nov 6, 20261,001-5,0001,534 contacts →

Exact match

“SANJOSE is one of the top construction companies within the sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBarcelona, SpainHQ recorded Nov 6, 20265,001-10,0001,437 contacts →

Exact match

“COMSA Corporación is the largest unlisted Spanish group in the infrastructure and engineering sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Nov 6, 2026501-1,000781 contacts →

Exact match

“TPF INGENIERÍA is one of the leading engineering companies in Spain, truly committed to innovation and excellence in all aspects of infrastructure development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSigüeiro, SpainHQ recorded Nov 6, 2026501-1,000567 contacts →

Exact match

“The company was founded in A Coruña (Spain) in 1977, triggered by the Rande bridge project and comprising a local team of 50 professionals.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Nov 6, 20261,001-5,000525 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSan Fernando De Henares, SpainHQ recorded Nov 6, 2026501-1,000496 contacts →

Exact match

“Somos un referente internacional en ingeniería, arquitectura y consultoría de infraestructuras, urbanismo y medio ambiente.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBarcelona, SpainHQ recorded Nov 6, 2026501-1,000476 contacts →

Exact match

“RUBAU GROUP is mainly involved in construction, property development and concession management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchGalicia, SpainHQ recorded Nov 6, 2026501-1,000474 contacts →

Exact match

“S.A.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchValencia, SpainHQ recorded Nov 6, 2026501-1,000465 contacts →

Exact match

“PAVASAL es una empresa constructora dedicada a la conservación y construcción de obra civil.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBarcelona, SpainHQ recorded Nov 6, 2026501-1,000456 contacts →

Exact match

“Copcisa is a construction company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMadrid, SpainHQ recorded Nov 6, 2026501-1,000418 contacts →

Exact match

“Bienvenido a Rover Grupo!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchPamplona, SpainHQ recorded Nov 6, 2026201-500399 contacts →

Exact match

“Obras Especiales es una empresa constructora con una trayectoria de más de 45 años en el sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMadrid, SpainHQ recorded Nov 6, 2026201-500385 contacts →

Exact match

“ASCH Infraestructuras y Servicios S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAlicante, SpainHQ recorded Nov 6, 2026201-500334 contacts →

Exact match

“At CHM Obras e Infraestructuras our track record in the sector makes us a benchmark company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMadrid, SpainHQ recorded Nov 6, 2026201-500291 contacts →

Exact match

“Desde 1970 ESTEYCO ha desarrollado internacionalmente más de 1.300 estudios y proyectos.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBilbo, SpainHQ recorded Nov 6, 2026201-500265 contacts →

Exact match

“TECSA Empresa Constructora, S.A, nacida en 1.971 en el entorno ferroviario, es hoy en día una referencia en la construcción y mantenimiento de infraestructuras del transporte.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAlcala De Henares, SpainHQ recorded Nov 6, 202651-200264 contacts →

Exact match

“ALZA Obras y Servicios S.L.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLeioa, SpainHQ recorded Nov 6, 2026201-500258 contacts →

Exact match

“Founded in 1988, SAITEC is one of the most prestigious engineering firms in Spain at present.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMadrid, SpainHQ recorded Nov 6, 20261,001-5,000236 contacts →

Exact match

“VIAS es una empresa constructora con más de 80 años de experiencia, que pertenece a uno de los mayores grupos de Construcción y Servicios de ámbito Internacional.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSantiago De Compostela, SpainHQ recorded Nov 6, 2026201-500233 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSeville, SpainHQ recorded Nov 6, 2026501-1,000228 contacts →

Exact match

“INSERSA (Ingeniería de Suelos y Explotación de Recursos, S.A.) se constituyó en 1988 con una actividad inicial en sondeos y perforaciones mineras, en la que actualmente es líder…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchPozuelo De Alarcón, SpainHQ recorded Nov 6, 2026201-500218 contacts →

Exact match

“Empresa constructora de ámbito nacional, especializada en obra civil, hidráulica, ferroviaria, edificación, rehabilitación, restauración y obra industrial.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchJaén, SpainHQ recorded Nov 6, 2026201-500148 contacts →

Exact match

“VIALTERRA INFRAESTRUCTURAS, S.A.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 768 heavy construction contractors based in Spain

See the full list, filter by size, metro and specialty, and access 2,703 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Heavy construction contractors based in Spain at a glance

As of Nov 6, 2026
10.6%Verified-email coverage
33.3Average contacts per company
11-50Median size (employees)
14.8%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
199
11-50
343
51-200
165
201-500
30
501-1,000
18
1,001-5,000
6
5,001-10,000
2
10001+
2

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 768 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 Spain whose business descriptions match “heavy construction 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 2,703 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 November 6, 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 “heavy construction contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many heavy construction contractors are there based in Spain?

RevenueBase identified 768 company matches for heavy construction contractors associated with Spain as of November 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?

Dragados SA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most heavy construction contractors?

Madrid leads with 114 company records, followed by Barcelona (36) and Valencia (25).

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 2,703 professional contacts with verified work emails tracked across these 768 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 November 6, 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.