Company lists · Data refreshed September 2026

Top 25 Offshore engineering companies based in Spain

Name: Offshore engineering 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 198 companies tracked

RevenueBase identified 198 offshore engineering companies headquartered in Spain as of September 2026 and tracks 19,054 professional contacts across them, including 3,102 with verified work emails. Madrid is the largest hub.

This list covers offshore engineering 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

198Companies

19,054Contacts tracked

3,102Verified emails

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The 25 largest offshore engineering companies based in Spain

Ranked by team size

Top 25 of 198 offshore engineering 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 offshore engineering 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	Tecnicas Reunidas	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	10001+	10,588 contacts →
	Partial evidence “TR is an international general contractor engaged in the engineering and construction of industrial facilities in the fields of-Oil & Gas -Refining & Petrochemical -Power…” Source: RevenueBase Database · checked Sep 17, 2026
2	Dragados Offshore	Partial evidence	11510 Puerto Real, SpainHQ checked Sep 17, 2026	1,001-5,000	1,348 contacts →
	Partial evidence “Founded in 1972, Dragados Offshore S.A.” Source: RevenueBase Database · checked Sep 17, 2026
3	Ghenova	Partial evidence	Sevilla, SpainHQ checked Sep 17, 2026	501-1,000	856 contacts →
	Partial evidence “Ghenova is an engineering company that works internationally offering multidisciplinary engineering and consultancy services.” Source: RevenueBase Database · checked Sep 17, 2026
4	Nervion Industries, Engineering & Services, S.L	Partial evidence	Bilbao, SpainHQ checked Sep 17, 2026	1,001-5,000	681 contacts →
	Partial evidence “NERVION INDUSTRIES is a business group dedicated to industrial services and applied engineering, providing services in strategic sectors.” Source: RevenueBase Database · checked Sep 17, 2026
5	Tamoin	Indirect evidence	Erandio/ Altzaga, SpainHQ checked Sep 17, 2026	1,001-5,000	630 contacts →
	Indirect evidence “TAMOIN, fundada en 1956, es en la actualidad una sociedad empresarial de GTM Grupo, en constante evolución hacia la especialización en servicios industriales.” Source: RevenueBase Database · checked Sep 17, 2026
6	Grupo Masa	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	1,001-5,000	450 contacts →
	Indirect evidence “MASA interviene en toda la cadena de actividades en la vida de las instalaciones e infraestructuras, desde su fase de proyecto, hasta la construcción y montaje de la instalación…” Source: RevenueBase Database · checked Sep 17, 2026
7	Tetrace	Indirect evidence	Pamplona, SpainHQ checked Sep 17, 2026	501-1,000	441 contacts →
	Indirect evidence “TETRACE es un Grupo Empresarial dedicado a ingeniería, construcción y mantenimiento de activos renovables, constituido en 2010.” Source: RevenueBase Database · checked Sep 17, 2026
8	Moncobra	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	501-1,000	292 contacts →
	Indirect evidence “Empresa de referencia del Grupo Cobra especializada en diseño, ingeniería, instalaciones y montajes mecánicos y eléctricos y mantenimiento industrial.” Source: RevenueBase Database · checked Sep 17, 2026
9	Kaefer Servicios Industriales	Indirect evidence	Erandio, SpainHQ checked Sep 17, 2026	1,001-5,000	261 contacts →
	Indirect evidence “At KAEFER, we are your strategic partner for integrated industrial maintenance solutions.” Source: RevenueBase Database · checked Sep 17, 2026
10	ACSM	Partial evidence	Vigo, SpainHQ checked Sep 17, 2026	51-200	208 contacts →
	Partial evidence “ACSM is a global leading provider of subsea services with 25 years of expertise within the offshore energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
11	Teiga TMI	Indirect evidence	Bergondo, SpainHQ checked Sep 17, 2026	201-500	204 contacts →
	Indirect evidence “TEIGA TMI es una empresa con más de 40 años de experiencia, que ofrece soluciones y servicios de ingeniería; montaje y mantenimiento mecánico-eléctrico; con implantación en…” Source: RevenueBase Database · checked Sep 17, 2026
12	Tecade, S.A	Partial evidence	Los Molares, SpainHQ checked Sep 17, 2026	201-500	145 contacts →
	Partial evidence “TECADE is a company that has developed for more than 35 years in the construction of steel bridges and offshore structures.” Source: RevenueBase Database · checked Sep 17, 2026
13	Techno PRO Hispania	Partial evidence	Cartagena, SpainHQ checked Sep 17, 2026	201-500	128 contacts →
	Partial evidence “Since 1990, Techno Pro Hispania (TPH) and the FIVA Group have worked closely with their clients in the development of industrial, naval, energy, and petrochemical engineering…” Source: RevenueBase Database · checked Sep 17, 2026
14	IDESA	Indirect evidence	Gijón, SpainHQ checked Sep 17, 2026	201-500	114 contacts →
	Indirect evidence “Founded in 1993, IDESA has grown to become one of the most currently recognized and respected companies in the design, fabrication and supply of static and modular equipment…” Source: RevenueBase Database · checked Sep 17, 2026
15	Eia21	Partial evidence	Erandio, SpainHQ checked Sep 17, 2026	51-200	113 contacts →
	Partial evidence “Founded in 1979, EIA21 was chartered with the aim of responding to the engineering needs of high growth industrial companies, soon achieved a strong footprint in this area…” Source: RevenueBase Database · checked Sep 17, 2026
16	Abance	Partial evidence	El Puerto De Santa María, SpainHQ checked Sep 17, 2026	51-200	103 contacts →
	Partial evidence “Abance is an engineering company founded in 1994 in El Puerto de Santa María (Cádiz), Spain, that operates in the Naval and Defense sector.” Source: RevenueBase Database · checked Sep 17, 2026
17	Diseprosa	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	92 contacts →
	Indirect evidence “DISEÑOS Y PROYECTOS REUNIDOS, S.A.(DISEPROSA), fundada en Madrid en 1986 y dedicada al desarrollo y prestación de servicios de Ingeniería y Consultoría, Dirección y Supervisión de…” Source: RevenueBase Database · checked Sep 17, 2026
18	Tenerife Shipyards	Partial evidence	Santa Cruz De Tenerife, SpainHQ checked Sep 17, 2026	201-500	77 contacts →
	Partial evidence “At Tenerife Shipyards, we offer our clients a wide range of services for offshore fabrication and maritime sector needs.” Source: RevenueBase Database · checked Sep 17, 2026
19	Seaplace	Strong evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	63 contacts →
	Strong evidence “Seaplace is an Offshore Engineering and Ship Design office.” Source: RevenueBase Database · checked Sep 17, 2026
20	Tincasur Sur, S.L	Partial evidence	Puerto Real, SpainHQ checked Sep 17, 2026	51-200	63 contacts →
	Partial evidence “Tincasur Sur es una empresa de servicios con una gran experiencia en los campos Naval, Industrial y OffShore, contando con dos divisiones, una dedicada a la Mecánica y otra a la…” Source: RevenueBase Database · checked Sep 17, 2026
21	Ineltron Solutions	Indirect evidence	Betanzos, SpainHQ checked Sep 17, 2026	201-500	58 contacts →
	Indirect evidence “INELTRON es una empresa multinacional especializada en la prestación de servicios de ingeniería, construcción, puesta en marcha, operación y mantenimiento en sistemas de…” Source: RevenueBase Database · checked Sep 17, 2026
22	Atridel Engineering Development & Design S.L	Partial evidence	Puerto Real, SpainHQ checked Sep 17, 2026	11-50	54 contacts →
	Partial evidence “ATRIDEL es una empresa de ingeniería, enfocada desde sus comienzos en 2005 al sector Naval y Offshore, proporcionando soluciones de diseño y fabricación, en cada una de sus…” Source: RevenueBase Database · checked Sep 17, 2026
23	Iberastur Ingeniería	Indirect evidence	Avilés, SpainHQ checked Sep 17, 2026	51-200	48 contacts →
	Indirect evidence “Iberastur es una empresa especializada en ingeniería industrial, reconocida por ofrecer soluciones técnicas avanzadas para optimizar la eficiencia y el rendimiento de…” Source: RevenueBase Database · checked Sep 17, 2026
24	Opex Energy	Partial evidence	Barcelona, SpainHQ checked Sep 17, 2026	11-50	44 contacts →
	Partial evidence “Opex Energy is an engineering and technical assistance company.” Source: RevenueBase Database · checked Sep 17, 2026
25	Sintemar	Indirect evidence	Erandio, SpainHQ checked Sep 17, 2026	11-50	37 contacts →
	Indirect evidence “SINTEMAR is a company specialized in technical solutions for the installation, protection, repair and reliability of industrial and marine assets, with over 65 years of experience…” 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: offshore engineering 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 offshore engineering companies.
Partial evidence: Its own public description names part of offshore engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore engineering 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 198 offshore engineering companies based in Spain

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Offshore engineering companies based in Spain at a glance

As of Sep 17, 2026

16.3%Verified-email coverage

96.2Average contacts per company

11-50Median size (employees)

15.2%Largest-city concentration · Madrid

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

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 198 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 offshore engineering 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 “offshore engineering 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 offshore engineering 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 offshore engineering 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, 3,102 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.

Offshore engineering companies by metro

Offshore engineering companies in Madrid30

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 offshore engineering 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 offshore engineering companies are there based in Spain?

RevenueBase identified 198 offshore engineering 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?

Tecnicas Reunidas, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most offshore engineering companies?

Madrid leads with 30 headquartered companies, followed by Barcelona (11) and Puerto Real (9).

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 3,102 verified decision-maker contacts tracked across these 198 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.