Company lists · Data refreshed September 2026
Top 25 Outsource IT companies based in Spain
RevenueBase identified 444 outsource IT companies headquartered in Spain as of September 2026 and tracks 9,008 professional contacts across them, including 763 with verified work emails. Madrid is the largest hub.
This list covers outsource IT 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 21, 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 outsource IT companies based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,007 contacts → | ||||
Partial evidence “Specialized services in order to provide to other companies outsourcing for activities, improving its performance and cost.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 850 contacts → | ||||
Indirect evidence “Nos especializamos en la externalización de servicios a entidades financieras y nos reinventamos continuamente en un mercado cada vez más competitivo para lograr lo más…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 430 contacts → | ||||
Indirect evidence “Aubay es una empresa de consultoría y servicios informáticos fundada en 1998 en Francia.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 305 contacts → | ||||
Partial evidence “The SELLBYTEL Group is one of the worldwide leading outsourcing specialists and part of Webhelp.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 221 contacts → | ||||
Partial evidence “Fundada en 1995, SEREM Consultoría Empresarial es una firma de capital íntegramente nacional dedicada a servicios de tecnologías de información (IT).” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 215 contacts → | ||||
Partial evidence “With more than 17 years of experience and trajectory in the IT world, LOGNEXT offers solutions to our clients and professional careers to our consultants in technology projects…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 192 contacts → | ||||
Partial evidence “Bukit BPO es una compañía internacional dedicada al negocio del Business Process Outsourcing y que actúa como partner tecnológico y operacional para clientes de todo el mundo.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 188 contacts → | ||||
Indirect evidence “Trevenque Sistemas de Información nace en 1992 con el principal reto de convertirse en uno de los primeros grupos empresariales, capaz de ayudar a las empresas a mejorar sus…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 177 contacts → | ||||
Indirect evidence “es una ó, ayudamos a nuestros clientes a resolver sus principales retos en el campo de las tecnologías de la información.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 169 contacts → | ||||
Indirect evidence “Grupo Arelance es una consultora tecnológica especializada en el desarrollo y puesta en marcha de soluciones integrales y Soporte a Proyectos en el ámbito de las Tecnologías de la…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 133 contacts → | ||||
Indirect evidence “WE ARE SANDAV A unique service company, with a technological soul.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 111 contacts → | ||||
Partial evidence “Empresa dedicada al outsourcing de servicios de alta calidad.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 107 contacts → | ||||
Indirect evidence “Cada día nos esforzamos por transformar y optimizar organizaciones mediante la implementación de soluciones tecnológicas seguras, eficientes y vanguardistas, evolucionamos contigo…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 95 contacts → | ||||
Indirect evidence “Carver Advanced Systems es una empresa con sede en Barcelona, fundada el año 2002 y orientada a la realización de servicios en el ámbito de las Tecnologías de la Información, con…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 88 contacts → | ||||
Indirect evidence “Especialistas en externalización de procesos logísticos, industriales y hoteleros.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 78 contacts → | ||||
Indirect evidence “CLARCAT es una empresa joven y dinámica en plena expansión, que actualmente tiene sedes operativas en Cataluña, Asturias, Madrid y cuenta con una plantilla de 70 profesionales.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 77 contacts → | ||||
Indirect evidence “PSS Tecnologías de la Información, es un grupo empresarial fundado en 1995 por un equipo de profesionales relacionados con el mundo de los servicios informáticos y con amplia…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 76 contacts → | ||||
Partial evidence “Vanadys is a young and dynamic organization managed by a group of professionals with more than 25 years of experience in major IT manufacturers, consulting services companies…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 64 contacts → | ||||
Partial evidence “CLICK-IT nace de la unión de profesionales con gran vocación de servicio y una dilatada experiencia en el sector.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 64 contacts → | ||||
Indirect evidence “ARENA Consulting es una empresa especializada en Tecnologías de la Información, que ofrece servicios de Consultoría, Desarrollo de Aplicaciones, Soporte y Administración de…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 56 contacts → | ||||
Indirect evidence “Somos una firma multidisciplinar, con más de 35 años de experiencia, especializados en la gestión y externalización de procesos de negocio financieros, recursos humanos, gestión…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 55 contacts → | ||||
Indirect evidence “Fundada en el año por un equipo de directivos con consolidada experiencia en el sector.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 53 contacts → | ||||
Indirect evidence “AMS Solutions es una compañía TIC con sede en A Coruña.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 42 contacts → | ||||
Indirect evidence “Nos dedicamos a la externalización de procesos de negocio y estamos especializados en los relacionados con la atención y gestión del cliente.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 42 contacts → | ||||
Indirect evidence “EQUIPO TIC XXI somos una empresa de Servicios Informáticos Globales.” Source: RevenueBase Database · checked Sep 21, 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: outsource IT 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 outsource IT companies.
- Partial evidence
- Its own public description names part of outsource IT companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name outsource IT 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 444 outsource IT companies based in Spain
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Outsource IT companies based in Spain at a glance
As of Sep 21, 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 444 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 outsource IT 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 “outsource IT 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 outsource IT 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 outsource IT 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, 763 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 21, 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.
Outsource IT companies by metro
- Outsource IT companies in Madrid115
- Outsource IT companies in Barcelona57
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 outsource IT 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 outsource IT companies are there based in Spain?
RevenueBase identified 444 outsource IT 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?
Inelcom, Ingeniería Electrónica Comercial, headquartered in Madrid, tops this list with the largest team on record.
Which city has the most outsource IT companies?
Madrid leads with 115 headquartered companies, followed by Barcelona (57) and Valencia (19).
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 763 verified decision-maker contacts tracked across these 444 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 21, 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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