Company lists · Data refreshed September 2026

Top 25 Specialized welding contractors based in Spain

Name: Specialized welding contractors based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 228 companies tracked

RevenueBase identified 228 specialized welding contractors headquartered in Spain as of September 2026 and tracks 1,430 professional contacts across them, including 87 with verified work emails. Zaragoza is the largest hub.

This list covers specialized welding contractors 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 18, 2026 86% judged on-target in blind review

228Companies

1,430Contacts tracked

87Verified emails

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The 25 largest specialized welding contractors based in Spain

Ranked by team size

Top 25 of 228 specialized welding contractors based in Spain, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to specialized welding contractors: 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	Premonor	Indirect evidence	Bergondo, SpainHQ checked Sep 18, 2026	51-200	79 contacts →
	Indirect evidence “Premonor, S.A.” Source: RevenueBase Database · checked Sep 18, 2026
2	Tincasur Sur, S.L	Indirect evidence	Puerto Real, SpainHQ checked Sep 18, 2026	51-200	63 contacts →
	Indirect 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 18, 2026
3	Herjimar	Indirect evidence	Cartagena, SpainHQ checked Sep 18, 2026	51-200	53 contacts →
	Indirect evidence “En Herjimar llevamos más de 50 años apostando por la innovación en soluciones metalmecánicas.” Source: RevenueBase Database · checked Sep 18, 2026
4	Jauregui Ingeniería Y Servicios Industriales S.A Perteneciente AL Entorno Mercantil Serveo Servicios	Indirect evidence	Derio, SpainHQ checked Sep 18, 2026	51-200	48 contacts →
	Indirect evidence “Empresa perteneciente al entorno mercantil de Serveo Servicios Ingeniería, Servicios de Montajes, Mantenimiento, origen en 1943, la Siderurgia "Sociedad Anónima Basconia" Desde…” Source: RevenueBase Database · checked Sep 18, 2026
5	Gala GAR S.L	Indirect evidence	Zaragoza, SpainHQ checked Sep 18, 2026	51-200	34 contacts →
	Indirect evidence “Expertos en SOLDADURA y REGULACIÓN Con más de 80 años de experiencia, en GALA GAR, ofrecemos SERVICIOS Y SOLUCIONES adaptadas a las necesidades de la industria actual, con una…” Source: RevenueBase Database · checked Sep 18, 2026
6	Culmar S.A	Indirect evidence	Chiclana De La Frontera, SpainHQ checked Sep 18, 2026	51-200	29 contacts →
	Indirect evidence “Culmar S.A was established in 1987 to attend to the demands of the Cadiz Bay Shipyards.” Source: RevenueBase Database · checked Sep 18, 2026
7	Grupo Caldereria Rovira, S.L	Indirect evidence	Celrà, SpainHQ checked Sep 18, 2026	11-50	25 contacts →
	Indirect evidence “Caldereria Rovira is serving the industry worlwide since 1918.” Source: RevenueBase Database · checked Sep 18, 2026
8	Viñolas Metall, S.L	Indirect evidence	Banyoles, SpainHQ checked Sep 18, 2026	11-50	25 contacts →
	Indirect evidence “Hello and welcome to Viñolas Metall!” Source: RevenueBase Database · checked Sep 18, 2026
9	S4e	Partial evidence	Sant Cugat Del Vallès, SpainHQ checked Sep 18, 2026	51-200	24 contacts →
	Partial evidence “Fabrication of parts and assembly of components tailored to client specifications in Structural welding, Custom Manufacturing, In-House Quality Control with self-monitoring of…” Source: RevenueBase Database · checked Sep 18, 2026
10	Atecsol Welding Applications	Indirect evidence	Camargo, SpainHQ checked Sep 18, 2026	11-50	18 contacts →
	Indirect evidence “Atecsol was founded in by highly skilled professionals personnel with over 25 years of experience in manufacturing industrial goods and equipment.” Source: RevenueBase Database · checked Sep 18, 2026
11	Cadinox S.A	Partial evidence	Belaunza, SpainHQ checked Sep 18, 2026	51-200	16 contacts →
	Partial evidence “CADINOX is dedicated to the mechanized welding of extremely precise and large format critical equipment that works in complex and unique environments.” Source: RevenueBase Database · checked Sep 18, 2026
12	Arasol Industrial	Indirect evidence	Zaragoza, SpainHQ checked Sep 18, 2026	1-10	16 contacts →
	Indirect evidence “Más de 30 años de experiencia en la distribución de maquinaria, consumibles y accesorios para la soldadura.” Source: RevenueBase Database · checked Sep 18, 2026
13	JS Metallic Solutions	Indirect evidence	Vic, SpainHQ checked Sep 18, 2026	11-50	15 contacts →
	Indirect evidence “En JS Metallic Solutions (Estructures, Muntatges i Soldadures JS) ofrecemos soluciones integrales en estructuras metálicas para proyectos globales, combinando experiencia…” Source: RevenueBase Database · checked Sep 18, 2026
14	Bearcat, S.A	Indirect evidence	Barberà Del Vallès, SpainHQ checked Sep 18, 2026	11-50	11 contacts →
	Indirect evidence “Con más de 40 años en el sector de la soldadura y las técnica de unión, en Bearcat ofrecemos en la actualidad soluciones en todos los sectores industriales (sector automoción…” Source: RevenueBase Database · checked Sep 18, 2026
15	CAYE	Indirect evidence	Erandio/ Altzaga, SpainHQ checked Sep 18, 2026	11-50	9 contacts →
	Indirect evidence “CAYE es una empresa de maquinaria y consumibles de soldadura de alta gama.” Source: RevenueBase Database · checked Sep 18, 2026
16	Steel Innovation 2012 SL	Indirect evidence	Barberà Del Vallès, SpainHQ checked Sep 18, 2026	51-200	8 contacts →
	Indirect evidence “STEEL INNOVATION 2012 SL is a mechanical or industrial engineering company based out of Marie Curie 21-27,Barbera del Vallès, Barcelona, Spain.” Source: RevenueBase Database · checked Sep 18, 2026
17	Calderería Y Tuberías Industriales Fical S.L	Indirect evidence	Torrejón De Ardoz., SpainHQ checked Sep 18, 2026	11-50	8 contacts →
	Indirect evidence “Fiabilidad y calidad Disponemos de un equipo de profesionales altamente cualificados y de una tecnología de vanguardia que garantiza la calidad de nuestros trabajos en proyectos…” Source: RevenueBase Database · checked Sep 18, 2026
18	Gasdruck Technical Innovation	Indirect evidence	Cardedeu, SpainHQ checked Sep 18, 2026	11-50	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 18, 2026
19	Metalúrgica VAT SA	Indirect evidence	Zamudio, SpainHQ checked Sep 18, 2026	51-200	7 contacts →
	Indirect evidence “El Grupo de empresas dedicadas a la calderería: fabricación y construcción mecánica, mantenimientos industriales (mecánicos, de grúas, hidráulicos y electromecánicos) y oxicortes.” Source: RevenueBase Database · checked Sep 18, 2026
20	Erekaldea SA	Indirect evidence	Orkoien, SpainHQ checked Sep 18, 2026	11-50	7 contacts →
	Indirect evidence “La base de EREKALDEA es nuestro equipo humano altamente cualificado en el diseño, fabricación y montaje de estructuras metálicas de alta calidad.” Source: RevenueBase Database · checked Sep 18, 2026
21	Aste, S.L	Indirect evidence	Valls, SpainHQ checked Sep 18, 2026	11-50	7 contacts →
	Indirect evidence “Somos una empresa de servicios a la industria, con una sólida trayectoria en soluciones mecánicas avanzadas, orientada a garantizar la fiabilidad operativa, la continuidad…” Source: RevenueBase Database · checked Sep 18, 2026
22	Montajes Y Servicios Mecánicos Alva S.L	Indirect evidence	Puerto De Sagunto, SpainHQ checked Sep 18, 2026	51-200	6 contacts →
	Indirect evidence “Empresa fundada en 1981.” Source: RevenueBase Database · checked Sep 18, 2026
23	ZUHER	Indirect evidence	Huarte, SpainHQ checked Sep 18, 2026	11-50	5 contacts →
	Indirect evidence “Empresa del sector metalúrgico especializada en la fabricación de conjuntos únicos mecano-soldados para la industria en general, con experiencia en los siguientes sectores…” Source: RevenueBase Database · checked Sep 18, 2026
24	Techno Brazing S.L	Indirect evidence	Lliçà De Vall, SpainHQ checked Sep 18, 2026	11-50	5 contacts →
	Indirect evidence “Nuestro equipo es joven, dinámico y con gran experiencia en el campo de la SOLDADURA BRAZING, ya que nuestro equipo tiene un gran bagaje en el sector con más de 25 años, como…” Source: RevenueBase Database · checked Sep 18, 2026
25	Tot-Garais	Indirect evidence	Vitoria-gasteiz, SpainHQ checked Sep 18, 2026	11-50	5 contacts →
	Indirect evidence “Distribuidora oficial certificada UNE-EN ISO 9001:2015, con más de 30 años de experiencia en suministro, Formación y servicio técnico, de equipos de soldadura automatizada y…” Source: RevenueBase Database · checked Sep 18, 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: specialized welding contractors. 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 specialized welding contractors.
Partial evidence: Its own public description names part of specialized welding contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name specialized welding contractors. 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 228 specialized welding contractors based in Spain

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Specialized welding contractors based in Spain at a glance

As of Sep 18, 2026

6.1%Verified-email coverage

6.3Average contacts per company

11-50Median size (employees)

3.1%Largest-city concentration · Zaragoza

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

11-50

101

51-200

201-500

1,001-5,000

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 228 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 specialized welding contractors, 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 “specialized welding contractors”. 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 specialized welding contractors), 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 specialized welding contractors, 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, 87 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 specialized welding contractors, 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 specialized welding contractors are there based in Spain?

RevenueBase identified 228 specialized welding contractors 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?

Premonor, headquartered in Bergondo, tops this list with the largest team on record.

Which city has the most specialized welding contractors?

Zaragoza leads with 7 headquartered companies, followed by Vitoria (5) and Cartagena (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 87 verified decision-maker contacts tracked across these 228 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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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.