Company lists · Data refreshed September 2026

Top 25 Offsite construction companies based in Spain

Name: Offsite construction companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 203 companies tracked

RevenueBase identified 203 offsite construction companies headquartered in Spain as of September 2026 and tracks 1,844 professional contacts across them, including 183 with verified work emails. Madrid is the largest hub.

This list covers offsite construction companies 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 17, 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 17, 2026 86% judged on-target in blind review

203Companies

1,844Contacts tracked

183Verified emails

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The 25 largest offsite construction companies based in Spain

Ranked by team size

Top 25 of 203 offsite construction companies based in Spain, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to offsite construction companies: 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	011h	Partial evidence	Barcelona, SpainHQ checked Sep 17, 2026	51-200	159 contacts →
	Partial evidence “011h is a technology-driven company dedicated to transforming the construction industry.” Source: RevenueBase Database · checked Sep 17, 2026
2	Hormipresa	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	201-500	151 contacts →
	Indirect evidence “En Hormipresa llevamos más de 50 años consolidando nuestro liderazgo en la edificación industrializada con elementos de hormigón de alta prestación.” Source: RevenueBase Database · checked Sep 17, 2026
3	Consolis Tecnyconta	Indirect evidence	Tauste, SpainHQ checked Sep 17, 2026	501-1,000	144 contacts →
	Indirect evidence “En Consolis Tecnyconta estamos especializados en el diseño, cálculo, fabricación y montaje de centros de datos, naves industriales y logísticas, gigafactorías, edificios…” Source: RevenueBase Database · checked Sep 17, 2026
4	Panelais Producciones	Indirect evidence	Huerta, SpainHQ checked Sep 17, 2026	51-200	52 contacts →
	Indirect evidence “20 años liderando el sector de fabricación y venta de Panel Sandwich, paneles especiales, chapas, correas, perfilerías, puertas, ventanas, sistemas modulares, módulos…” Source: RevenueBase Database · checked Sep 17, 2026
5	ABC Arquitectura Modular	Indirect evidence	Pobla De Vallbona, SpainHQ checked Sep 17, 2026	51-200	52 contacts →
	Indirect evidence “Más de 20 años de trayectoria en el sector de la arquitectura modular.” Source: RevenueBase Database · checked Sep 17, 2026
6	Tecnometal	Indirect evidence	El Picazo, SpainHQ checked Sep 17, 2026	51-200	49 contacts →
	Indirect evidence “TECNOMETAL es una empresa dedicada al diseño y montaje de estructuras metálicas, desde su fundación en 1995, se ha ido especializando en el diseño, fabricación y montaje de…” Source: RevenueBase Database · checked Sep 17, 2026
7	ÁVITA	Indirect evidence	Pozuelo De Alarcón, SpainHQ checked Sep 17, 2026	501-1,000	46 contacts →
	Indirect evidence “Ávita es la compañía de construcción industrializada de Grupo Avintia, que conecta el proceso de diseño y fabricación de los elementos industrializados para el edificio hasta su…” Source: RevenueBase Database · checked Sep 17, 2026
8	Artepref	Indirect evidence	Aranda De Duero, SpainHQ checked Sep 17, 2026	201-500	40 contacts →
	Indirect evidence “Artepref es una empresa con sede en Aranda de Duero (Burgos) dedicada al diseño, fabricación y montaje de estructura y cerramiento en hormigón prefabricado para edificios…” Source: RevenueBase Database · checked Sep 17, 2026
9	TDM S.L	Indirect evidence	Molins De Rei, SpainHQ checked Sep 17, 2026	51-200	39 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
10	Lignum Tech	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	11-50	38 contacts →
	Indirect evidence “Somos una compañía perteneciente a la Corporación VÍA ÁGORA.” Source: RevenueBase Database · checked Sep 17, 2026
11	Prefabricats Planas	Indirect evidence	Santa Coloma De Farners, SpainHQ checked Sep 17, 2026	51-200	37 contacts →
	Indirect evidence “En Prefabricats Planas trabajamos desde 1939 en la construcción de obras industriales y arquitectónicas con prefabricado de hormigón.” Source: RevenueBase Database · checked Sep 17, 2026
12	Viguetas Navarras	Indirect evidence	Huarte, SpainHQ checked Sep 17, 2026	51-200	35 contacts →
	Indirect evidence “Construimos más rápido, con menos residuos y más precisión.” Source: RevenueBase Database · checked Sep 17, 2026
13	Proyectos Onddi S.A	Partial evidence	San Sebastián, SpainHQ checked Sep 17, 2026	11-50	33 contacts →
	Partial evidence “ONDDI is an engineering firm created to meet the needs of modern construction.” Source: RevenueBase Database · checked Sep 17, 2026
14	Pretersa-Prenavisa	Indirect evidence	La Puebla De Hijar, SpainHQ checked Sep 17, 2026	201-500	30 contacts →
	Indirect evidence “Pretersa-Prenavisa es una Compañía en plena expansión, dedicada al diseño, fabricación y montaje de infraestructuras de hormigón prefabricado.” Source: RevenueBase Database · checked Sep 17, 2026
15	Hormitech	Indirect evidence	Las Rozas, SpainHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “Empresa de última generación en la construcción de viviendas, mediante sistema de prefabricación de sistemas de Hormigón Además, en Hormitech apostamos por un tipo de arquitectura…” Source: RevenueBase Database · checked Sep 17, 2026
16	Roansa Solucions Constructives	Indirect evidence	Olost, SpainHQ checked Sep 17, 2026	11-50	24 contacts →
	Indirect evidence “A Roansa ens dediquem a dissenyar i fabricar l’ànima dels edificis a través d’elements de formigó industrialitzat.” Source: RevenueBase Database · checked Sep 17, 2026
17	Alquibarsa	Indirect evidence	Valladolises, SpainHQ checked Sep 17, 2026	11-50	22 contacts →
	Indirect evidence “Alquibarsa es una empresa perteneciente a un solido grupo empresarial fundado en 1982 con el propósito de diseñar y fabricar edificios modulares de alta calidad.” Source: RevenueBase Database · checked Sep 17, 2026
18	Constructora D'aro	Indirect evidence	Manresa, SpainHQ checked Sep 17, 2026	51-200	21 contacts →
	Indirect evidence “Constructora d’Aro és una empresa de serveis integrals en construcció amb més de 50 anys d’experiència i una trajectòria consolidada amb edificis construïts arreu del territori.” Source: RevenueBase Database · checked Sep 17, 2026
19	Grupo Decosystem	Indirect evidence	Fuenlabrada, SpainHQ checked Sep 17, 2026	51-200	18 contacts →
	Indirect evidence “Decosystem es una empresa dedicada al diseño, fabricación e instalación de todo tipo de proyectos comerciales.” Source: RevenueBase Database · checked Sep 17, 2026
20	NSM	Indirect evidence	Salinas De Pamplona, SpainHQ checked Sep 17, 2026	51-200	16 contacts →
	Indirect evidence “NSM es una empresa creada en 1995 dedicada a la construcción modular industrializada.” Source: RevenueBase Database · checked Sep 17, 2026
21	Grupo Eurocasa	Indirect evidence	Burgos, SpainHQ checked Sep 17, 2026	51-200	16 contacts →
	Indirect evidence “Grupo Eurocasa, se posiciona como líder en el sector de fabricación de construcciones modulares fijas y móviles en España y Portugal.” Source: RevenueBase Database · checked Sep 17, 2026
22	GLS Consorcio DEL Hormigón S.L.U	Indirect evidence	Lleida, SpainHQ checked Sep 17, 2026	51-200	15 contacts →
	Indirect evidence “ESP - GLS Prefabricados es el resultado de la fusión de las empresas Cafisol S.A, Leripresa- Leridana de prefabricados S.A.” Source: RevenueBase Database · checked Sep 17, 2026
23	Precusa	Indirect evidence	Gijón, SpainHQ checked Sep 17, 2026	51-200	9 contacts →
	Indirect evidence “PRECUSA lleva más de 20 años en el mundo del la CONSTRUCCIÓN MODULAR con módulos prefabricados y estructura metálica.” Source: RevenueBase Database · checked Sep 17, 2026
24	Evowall Technology	Partial evidence	San Fruitós De Bages, SpainHQ checked Sep 17, 2026	11-50	9 contacts →
	Partial evidence “At Evowall Technology, we are transforming construction with an innovative and sustainable industrialized system designed for the building envelope and key structural elements.” Source: RevenueBase Database · checked Sep 17, 2026
25	SEI Structural System	Indirect evidence	Pamplona, SpainHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “La compañía SEI Structural System es titular del sistema SEI® que se configura como un sistema integral de construcción industrializada de estructuras para edificación urbana en…” Source: RevenueBase Database · checked Sep 17, 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: offsite construction companies. 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 offsite construction companies.
Partial evidence: Its own public description names part of offsite construction companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offsite construction companies. 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 203 offsite construction companies based in Spain

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Offsite construction companies based in Spain at a glance

As of Sep 17, 2026

9.9%Verified-email coverage

9.1Average contacts per company

11-50Median size (employees)

10.3%Largest-city concentration · Madrid

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

100

51-200

201-500

501-1,000

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 203 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 offsite construction companies, 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 “offsite construction companies”. 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 offsite construction companies), 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 offsite construction companies, 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, 183 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 17, 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 offsite construction companies, 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 offsite construction companies are there based in Spain?

RevenueBase identified 203 offsite construction companies 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?

011h, headquartered in Barcelona, tops this list with the largest team on record.

Which city has the most offsite construction companies?

Madrid leads with 21 headquartered companies, followed by Barcelona (12) and Murcia (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 183 verified decision-maker contacts tracked across these 203 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 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 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.