Company lists · Data refreshed September 2026
Top 25 Offshore platform repair companies based in Spain
RevenueBase identified 116 offshore platform repair companies headquartered in Spain as of September 2026 and tracks 3,705 professional contacts across them, including 370 with verified work emails. Madrid is the largest hub.
This list covers offshore platform repair 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 29, 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.
The 25 largest offshore platform repair companies based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 261 contacts → | ||||
Indirect evidence “At KAEFER, we are your strategic partner for integrated industrial maintenance solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 246 contacts → | ||||
Indirect evidence “Siemsa es un operador independiente que proporciona servicios para el sector de la Energía, Industria y Oil and Gas, sistemas de control y analizadores de proceso, así como…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 150 contacts → | ||||
Indirect evidence “Altertec es una empresa líder de mantenimiento integral del sector eólico que nace en 2004 con el objetivo de dar respuestas a las necesidades del sector.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 145 contacts → | ||||
Indirect evidence “Now, we are ALTTION, a large family in which each of its divisions is a specialist in its field.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 111 contacts → | ||||
Partial evidence “Astilleros Canarios S.A.(Astican) is a leading privately owned ship repair yard, offering comprehensive repair, maintenance, and conversion services for all types of vessels…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 69 contacts → | ||||
Indirect evidence “Somos una compañía privada especializada desde el año en trabajos en altura y en entornos de difícil acceso, con enfoque en inspecciones mediante técnicas de Ensayos No…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 65 contacts → | ||||
Indirect evidence “Asistencia Total en Mantenimiento España S.L.U.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 44 contacts → | ||||
Indirect evidence “Opex Energy is an engineering and technical assistance company.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 37 contacts → | ||||
Partial 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 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 31 contacts → | ||||
Indirect evidence “i3 Ingenieros es una compañía especializada en ingeniería, instalaciones y mantenimiento, con un modelo de trabajo integral orientado al control técnico, la ejecución real y la…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 30 contacts → | ||||
Partial evidence “Blay Marine Tech SL offers technical marine services and ship repairs as well as auxiliary services for the maritime industry in Spain.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 25 contacts → | ||||
Indirect evidence “Metalships & Docks S.A.U is a company based in RÍOS, TEIS S/N, PONTEVEDRA, VIGO, Spain.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 24 contacts → | ||||
Partial evidence “We design, manufacture and deliver high-added value products and services, adapted to client’s needs and directed at the offshore exploitation and production industry, as well as…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 23 contacts → | ||||
Partial evidence “Confined, Hyperbaric and Rope Access Work Solutions CONFHYDRA SOLUTIONS S.L, ofrece servicios de construcción, reparación, mantenimiento y conservación de estructuras en zonas o…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 11 contacts → | ||||
Indirect evidence “La experiencia familiar de más de 30 años en el sector de las instalaciones petroleras, nos llevó a crear en 1998 Fort Instalaciones Petroleras, una empresa de servicios en el…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 11 contacts → | ||||
Indirect evidence “At Hidramar International we help to avoid downtimes to our clients providing cost-effective and safe high-quality assets maintenance in the Atlantic Ocean while they keep…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 8 contacts → | ||||
Indirect evidence “GASDRUCK es la marca comercial de TECHNICAL INNOVATION PIPING S.L, es una empresa de servicios dedicada al montaje de instalaciones industriales y especializada en la fabricación…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 6 contacts → | ||||
Indirect evidence “CROSSCOMAR is an internationally managed company situated in Algeciras, SPAIN.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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 platform repair 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 platform repair companies.
- Partial evidence
- Its own public description names part of offshore platform repair companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name offshore platform repair 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 116 offshore platform repair companies based in Spain
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Offshore platform repair companies based in Spain at a glance
As of Sep 29, 2026Companies by employee count
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 116 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 platform repair 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 platform repair 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 platform repair 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 platform repair 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, 370 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 29, 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 offshore platform repair 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 platform repair companies are there based in Spain?
RevenueBase identified 116 offshore platform repair 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?
Grupo Masa, headquartered in Madrid, tops this list with the largest team on record.
Which city has the most offshore platform repair companies?
Madrid leads with 13 headquartered companies, followed by Gijon (6) and Vigo (6).
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 370 verified decision-maker contacts tracked across these 116 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 29, 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.
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