Company lists · Data refreshed September 2026
Top 25 Steel fabricators based in Spain
RevenueBase identified 1,032 steel fabricators headquartered in Spain as of September 2026 and tracks 7,484 professional contacts across them, including 738 with verified work emails. Madrid is the largest hub.
This list covers steel fabricators 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 18, 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 steel fabricators based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 273 contacts → | ||||
Indirect evidence “Empresa dedicada al suministro y montaje de prefabricado de perfiles y tubería.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 3 | 135 contacts → | ||||
Indirect evidence “An EXTRAORDINARY FORGE that provides the best in class premium quality product together with production capacity, technical capabilities, service and flexibility of a leading…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 4 | 123 contacts → | ||||
Partial evidence “Belonging to the steel group Celsa Group™, MRT is the result of the merger between the two oldest and most prestigious wire mills in Spain.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 5 | 117 contacts → | ||||
Indirect evidence “GRUPO FERRALIA reúne a las compañías matrices, FERRALLAS ALBACETE, S.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 6 | 104 contacts → | ||||
Indirect evidence “En NERVACERO producimos acero corrugado para el armado del hormigón en barra y en rollo.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 7 | 102 contacts → | ||||
Indirect evidence “Somos un grupo líder en la distribución, transformación y comercialización de productos siderúrgicos de acero, con 14 Centros repartidos por toda la geografía de la Península…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 8 | 90 contacts → | ||||
Indirect evidence “The history of ANRO began in 1959, when a descendant of the old forges, based on fire, anvil and the hand of man, was able to transform cold metal into the wishes of our clients.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 9 | 77 contacts → | ||||
Partial evidence “Horta Coslada is a leading company in design, fabrication, engineering and erection of structural steel.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 10 | 70 contacts → | ||||
Indirect evidence “Transformamos acero para estructuras industriales y energías renovables.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 11 | 64 contacts → | ||||
Indirect evidence “A Mafesa som especialistes en ferro i acer.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 12 | 62 contacts → | ||||
Indirect evidence “Con más de 30 años de experiencia en el mercado, en IP GRUPO impulsamos la automatización de la construcción en acero mediante soluciones de alta tecnología para corte, taladrado…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 13 | 58 contacts → | ||||
Partial evidence “Founded in 1968, Parcisa is nowadays a top European manufacturer producing more than 450 stainless steel, aluminum, and mild steel road tankers.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 14 | 54 contacts → | ||||
Indirect evidence “Ingeniería especializada en líneas de ensamblado y soldadura para carrocería.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 15 | 53 contacts → | ||||
Indirect evidence “En Herjimar llevamos más de 50 años apostando por la innovación en soluciones metalmecánicas.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 16 | 49 contacts → | ||||
Indirect evidence “65 años de experiencia Almesa con más de 65 años de experiencia, es una de las compañías líderes en la distribución comercial del sector de la tubería de acero y accesorios…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 18 | 47 contacts → | ||||
Indirect evidence “Llevamos más de ocho décadas en el mercado dedicándonos a la distribución de productos siderúrgicos en España y Portugal con un enfoque profesional y comprometido.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 19 | 46 contacts → | ||||
Indirect evidence “Isotubi s.l.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 20 | 45 contacts → | ||||
Indirect evidence “SCS Structural Solutions es una empresa dedicada al proyecto, diseño y realización de estructuras y cierres metálicos para todo tipo de construcción, tanto industrial como…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 21 | 43 contacts → | ||||
Indirect evidence “Arenas & Asociados, está especializada en el diseño de Puentes, Pasarelas y Estructuras Singulares.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 22 | 41 contacts → | ||||
Indirect evidence “PIPEWORKS - PIPELINES AND EQUIPMENT SOLUTIONS Tuberías • Centro de corte robotizado para tuberías.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 23 | 38 contacts → | ||||
Indirect evidence “Diseñamos, fabricamos y comercializamos fittings y piezas bajo plano desde hace más de 40 años en industrias clave como la aeronáutica, siderúrgica, química, agroalimentaria…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 24 | 35 contacts → | ||||
Indirect evidence “TRH GROUP es una empresa del sector del acero / metalúrgico que nace en el año 1998 con el objetivo de ofrecer a sus clientes del sector de la construcción una amplia gama de…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 25 | 33 contacts → | ||||
Indirect evidence “ONDDI is an engineering firm created to meet the needs of modern construction.” Source: RevenueBase Database · checked Sep 18, 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: steel fabricators. 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 steel fabricators.
- Partial evidence
- Its own public description names part of steel fabricators, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name steel fabricators. 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 1,032 steel fabricators based in Spain
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Steel fabricators based in Spain at a glance
As of Sep 18, 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 1,032 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 steel fabricators, 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 “steel fabricators”. 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 steel fabricators), 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 steel fabricators, 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, 738 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 18, 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 steel fabricators, 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 steel fabricators are there based in Spain?
RevenueBase identified 1,032 steel fabricators 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?
Caldererías Indálicas ES -Cim MA, headquartered in Lucainena De Las Torres, tops this list with the largest team on record.
Which city has the most steel fabricators?
Madrid leads with 24 headquartered companies, followed by Barcelona (23) and Zaragoza (22).
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 738 verified decision-maker contacts tracked across these 1,032 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 18, 2026.
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Browse the directory
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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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