Company lists · Data refreshed September 2026

Top 25 Construction engineering staffing companies based in Spain

Name: Construction engineering staffing companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 317 companies tracked

RevenueBase identified 317 construction engineering staffing companies headquartered in Spain as of September 2026 and tracks 4,179 professional contacts across them, including 205 with verified work emails. Madrid is the largest hub.

This list covers construction engineering staffing 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 27, 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 27, 2026 86% judged on-target in blind review

317Companies

4,179Contacts tracked

205Verified emails

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The 25 largest construction engineering staffing companies based in Spain

Ranked by team size

Top 25 of 317 construction engineering staffing companies based in Spain, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to construction engineering staffing 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	JG Ingenieros S.A	Indirect evidence	Barcelona, SpainHQ checked Sep 27, 2026	51-200	346 contacts →
	Indirect evidence “JG Ingenieros, S.A.” Source: RevenueBase Database · checked Sep 27, 2026
2	Insersa	Indirect evidence	Sevilla, SpainHQ checked Sep 27, 2026	501-1,000	205 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026
3	Levantina, Ingeniería Y Construcción	Indirect evidence	Alberic, SpainHQ checked Sep 27, 2026	201-500	96 contacts →
	Indirect evidence “Nuestra empresa LIC, nace en Alberic (Valencia) en el año Su origen es la empresa Soluciones Estructurales SL, con una larga trayectoria en la ejecución de grandes estructuras de…” Source: RevenueBase Database · checked Sep 27, 2026
4	Quabit Construcción SA	Indirect evidence	Guadalajara, SpainHQ checked Sep 27, 2026	51-200	84 contacts →
	Indirect evidence “Quabit Construcción Construcción es una empresa líder en el sector de la construcción con un personal cualificado con experiencia, llevando a cabo obras como infraestructuras…” Source: RevenueBase Database · checked Sep 27, 2026
5	Iddtek	Indirect evidence	Derio, SpainHQ checked Sep 27, 2026	51-200	77 contacts →
	Indirect evidence “Ayudamos desde 2004 a Empresas Industriales en sus necesidades de Outsourcing y Selección de Ingenieros y Personal Técnico para alcanzar los objetivos en sus proyectos.” Source: RevenueBase Database · checked Sep 27, 2026
6	Euroconsult	Indirect evidence	San Sebastian De Los Reyes, SpainHQ checked Sep 27, 2026	51-200	70 contacts →
	Indirect evidence “Euroconsult es una ingeniería multinacional con mas de 50 años de experiencia cuya misión es satisfacer las necesidades de nuestros clientes como ingeniería de servicio integral…” Source: RevenueBase Database · checked Sep 27, 2026
7	Madonu	Indirect evidence	Santiago De Compostela, SpainHQ checked Sep 27, 2026	51-200	67 contacts →
	Indirect evidence “Construcciones MADONU nace en el año 2004, con el objetivo de convertirse en una referencia en el mundo de la construcción.” Source: RevenueBase Database · checked Sep 27, 2026
8	Veringer Engineering	Partial evidence	Santander, SpainHQ checked Sep 27, 2026	201-500	52 contacts →
	Partial evidence “Vèringer Engineering is a consultancy specialized in engineering talent solutions for complex industrial and energy projects worldwide.” Source: RevenueBase Database · checked Sep 27, 2026
9	Carlos Fernandez Casado, S.L. Cfcsl	Indirect evidence	Madrid, SpainHQ checked Sep 27, 2026	11-50	50 contacts →
	Indirect evidence “CARLOS FERNÁNDEZ CASADO S.L.” Source: RevenueBase Database · checked Sep 27, 2026
10	MS Ingenieros SLU	Indirect evidence	Valencia, SpainHQ checked Sep 27, 2026	11-50	35 contacts →
	Indirect evidence “Consultores de ingeniería civil.” Source: RevenueBase Database · checked Sep 27, 2026
11	Sistema Ingenieria	Indirect evidence	Las Palmas De Gran Canaria, SpainHQ checked Sep 27, 2026	11-50	34 contacts →
	Indirect evidence “SISTEMA INGENIERIA es una consultora de ingeniería avalada por una experiencia mayor de 30 años en el campo de la ingeniería civil.” Source: RevenueBase Database · checked Sep 27, 2026
12	Incoa Grupo	Partial evidence	Granada, SpainHQ checked Sep 27, 2026	51-200	29 contacts →
	Partial evidence “INCOA Grupo is a civil engineering and architecture consulting firm.” Source: RevenueBase Database · checked Sep 27, 2026
13	Ingenieros Asesores	Indirect evidence	Llanera, SpainHQ checked Sep 27, 2026	11-50	26 contacts →
	Indirect evidence “Empresa multidisciplinar compuesta por personal con experiencia y diferentes perfiles técnicos (Ingenieros, Arquitectos, Geólogos, Químicos, etc.), que puede aportar soluciones…” Source: RevenueBase Database · checked Sep 27, 2026
14	EIC Ingenieria	Indirect evidence	Burgos, SpainHQ checked Sep 27, 2026	11-50	19 contacts →
	Indirect evidence “EIC s.l, Estudio de Ingeniería Civil es una empresa consultora fundada en el año 1.992 cuya dedicación principal desde nuestros inicios es la redacción de proyectos y la…” Source: RevenueBase Database · checked Sep 27, 2026
15	Técnicas Gades S.L	Indirect evidence	El Puerto De Santa María, SpainHQ checked Sep 27, 2026	11-50	18 contacts →
	Indirect evidence “Técnicas Gades es una empresa especializada en Ingeniería Civil, Industrial, Urbanismo e Infraestructura del Transporte.” Source: RevenueBase Database · checked Sep 27, 2026
16	Orfisa IKC	Strong evidence	Madrid, SpainHQ checked Sep 27, 2026	11-50	18 contacts →
	Strong evidence “INDEPENDENT CONSULTING ENGINEERING - CONSULTING & ADVICE ON INTERNATIONAL TENDERS - PROJECT & CONSTRUCTION MANAGEMENT ORFISA is a independent consulting engineering.” Source: RevenueBase Database · checked Sep 27, 2026
17	Decode Ingeniería	Indirect evidence	Palma De Mallorca, SpainHQ checked Sep 27, 2026	11-50	18 contacts →
	Indirect evidence “Desde el principio, el Grupo ha seguido una estrategia de diversificación para impulsar su presencia en diferentes sectores comerciales, generando un crecimiento constante y…” Source: RevenueBase Database · checked Sep 27, 2026
18	Comoli, S.L	Indirect evidence	Málaga, SpainHQ checked Sep 27, 2026	11-50	17 contacts →
	Indirect evidence “Empresa constructora en Málaga con más de 40 años de experiencia en la realización de proyectos.” Source: RevenueBase Database · checked Sep 27, 2026
19	Construcció I Control S.L.P	Indirect evidence	Barcelona, SpainHQ checked Sep 27, 2026	11-50	16 contacts →
	Indirect evidence “Construcció i Control, S.L.P.” Source: RevenueBase Database · checked Sep 27, 2026
20	Inobet Estructuras	Indirect evidence	A Coruña, SpainHQ checked Sep 27, 2026	11-50	15 contacts →
	Indirect evidence “INOBET ESTRUCTURAS S.L.” Source: RevenueBase Database · checked Sep 27, 2026
21	SILGA	Partial evidence	Las Rozas, SpainHQ checked Sep 27, 2026	11-50	15 contacts →
	Partial evidence “SILGA is a consulting company specialized in engineering projects, mainly focused on civil, industrial and building structures.” Source: RevenueBase Database · checked Sep 27, 2026
22	Kubicat Arquitectura E Ingenieria SLP	Indirect evidence	Barcelona, SpainHQ checked Sep 27, 2026	11-50	14 contacts →
	Indirect evidence “KUBICAT Arquitectura e Ingeniería es una consultoría situada en Barcelona formada por profesionales con una amplia experiencia en el sector.” Source: RevenueBase Database · checked Sep 27, 2026
23	Mc2 Estudio DE Ingeniería SL	Indirect evidence	Madrid, SpainHQ checked Sep 27, 2026	11-50	14 contacts →
	Indirect evidence “Desde sus comienzos en 1988, los proyectos originados en las oficinas de MC2 Estudio de Ingeniería han influido decisivamente en el diseño de las estructuras de ingeniería civil y…” Source: RevenueBase Database · checked Sep 27, 2026
24	TXT Ingeniería S.L	Indirect evidence	Badajoz, SpainHQ checked Sep 27, 2026	11-50	14 contacts →
	Indirect evidence “TXT Ingeniería, S.L.” Source: RevenueBase Database · checked Sep 27, 2026
25	Landem	Partial evidence	Barcelona, SpainHQ checked Sep 27, 2026	11-50	14 contacts →
	Partial evidence “Landem es una ingeniería especializada en la gestión integral de proyectos constructivos para administraciones públicas y clientes privados.” Source: RevenueBase Database · checked Sep 27, 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: construction engineering staffing 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 construction engineering staffing companies.
Partial evidence: Its own public description names part of construction engineering staffing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name construction engineering staffing 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 317 construction engineering staffing companies based in Spain

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Construction engineering staffing companies based in Spain at a glance

As of Sep 27, 2026

4.9%Verified-email coverage

13.2Average contacts per company

11-50Median size (employees)

14.5%Largest-city concentration · Madrid

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

156

11-50

112

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 317 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 construction engineering staffing 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 “construction engineering staffing 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 construction engineering staffing 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 construction engineering staffing 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, 205 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 27, 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 construction engineering staffing 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 construction engineering staffing companies are there based in Spain?

RevenueBase identified 317 construction engineering staffing 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?

JG Ingenieros S.A, headquartered in Barcelona, tops this list with the largest team on record.

Which city has the most construction engineering staffing companies?

Madrid leads with 46 headquartered companies, followed by Barcelona (33) and Valencia (13).

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 205 verified decision-maker contacts tracked across these 317 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 27, 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.