Company lists · Data refreshed September 2026
Top 22 IT services companies based in Madrid, Spain
RevenueBase identified 347 IT services companies headquartered in Madrid, Spain as of September 2026 and tracks 40,008 professional contacts across them, including 1,596 with verified work emails. Across Spain, Madrid is the largest hub for this category.
This list covers IT services companies headquartered in Madrid, 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 4, 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 22 largest IT services companies based in Madrid, Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 527 contacts → | ||||
Indirect evidence “Optimissa is a proactive consultation company serving clients in the capital markets industry, bridging the gap between business and technology with a focus on innovation.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 2 | 391 contacts → | ||||
Strong evidence “With about 2200 experts atSistemas delivers IT consulting, services and software development which to help organizations to be more efficient and profitable.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 3 | 363 contacts → | ||||
Indirect evidence “No dejes de perseguir tus sueños.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 4 | 347 contacts → | ||||
Indirect evidence “TECDATA, es una dinámica compañía de servicios en Tecnologías de la Información con infraestructura propia en España, ofreciendo servicios profesionales y soluciones tecnológicas…” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 5 | 303 contacts → | ||||
Strong evidence “Panel Systems is a technology company specialized in software development, software quality assurance, and IT services.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 6 | 220 contacts → | ||||
Strong 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 4, 2026Thanks. The Data Team will review it. | |||||
| 7 | 214 contacts → | ||||
Strong 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 4, 2026Thanks. The Data Team will review it. | |||||
| 8 | 197 contacts → | ||||
Indirect evidence “CAS constituye una empresa de referencia, especializada en ofrecer soluciones de Formación y servicios de Consultoría y Outsourcing de profesionales en el ámbito de las TIC.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 9 | 180 contacts → | ||||
Indirect evidence “En MERCANZA desarrollamos soluciones tecnológicas de gestión empresarial y análisis de Negocio desde 1991, en apoyo de todo tipo de actividades empresariales y en todos los…” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 10 | 179 contacts → | ||||
Strong evidence “FDS es una compañía perteneciente a DXC Technology, empresa global de servicios de IT.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 11 | 175 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 4, 2026Thanks. The Data Team will review it. | |||||
| 12 | 162 contacts → | ||||
Indirect evidence “El Grupo AirON es una compañía de consultoría e innovación, servicios tecnológicos y outsourcing.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 13 | 160 contacts → | ||||
Indirect evidence “Gesein nace en 1993 en Madrid.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 14 | 153 contacts → | ||||
Indirect evidence “AELIS es una empresa de soluciones informáticas especializada en Pymes, cuya actividad está orientada a la prestación de servicios de valor añadido en el ámbito de los sistemas de…” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 15 | 151 contacts → | ||||
Indirect evidence “INNOCV es una empresa sostenible que se diferencia por poner a las personas en el centro de sus decisiones, mejoramos cada año la calidad de vida de los que trabajamos en ella…” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 16 | 143 contacts → | ||||
Indirect evidence “Search Information Technologies & Communication es una empresa innovadora y dinámica especializada en brindar soluciones tecnológicas avanzadas en el ámbito de las tecnologías de…” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 17 | 123 contacts → | ||||
Indirect evidence “Grupo Solutio, compañía del sector TI con sedes en España (Madrid, Barcelona, A Coruña) y México (México DF).” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 18 | 109 contacts → | ||||
Strong evidence “General Software (General Technologies Consulting) se estableció en 2003 como compañía proveedora de Servicios de IT.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 19 | 107 contacts → | ||||
Indirect evidence “Dimática, empresa del Grupo Sermicro (perteneciente a Cobra IS), está especializada en distíntas líneas de negocio.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 20 | 106 contacts → | ||||
Indirect evidence “INFOREIN Somos una empresa española especializada en el suministro, instalación y servicios informáticos, consultoría tecnológica, integración de sistemas e ingeniería de procesos.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 21 | 102 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 4, 2026Thanks. The Data Team will review it. | |||||
| 22 | 99 contacts → | ||||
Strong evidence “Factum IT is an IT services company with a strong delivery team focused on security, network solutions, open systems, storage, Database and virtualization.” Source: RevenueBase Database · checked Sep 4, 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: IT services 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 IT services companies.
- Partial evidence
- Its own public description names part of IT services companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT services 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 22 of 347 IT services companies based in Madrid, Spain
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,596 reachable decision-makers.
Free signup · no credit card
IT services companies based in Madrid, Spain at a glance
As of Sep 4, 2026Companies by employee count
Email recency for this list is measured across the whole Spain list rather than for Madrid, so it is reported there. Company counts and contact totals on this page are exact for Madrid, over 347 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 IT services 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 Madrid, Spain whose own description of what they do matches “IT services 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 IT services 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 IT services companies, and records with no verified work email. Companies headquartered outside Madrid 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, 1,596 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 4, 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.
IT services companies by metro in Spain
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 IT services 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 IT services companies are there based in Madrid, Spain?
RevenueBase identified 347 IT services companies headquartered in Madrid, 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?
Optimissa, headquartered in Madrid, tops this list with the largest team on record.
Which city in Spain has the most IT services companies?
Madrid leads Spain with 347 headquartered companies, followed by Barcelona (188) and Valencia (48).
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 1,596 verified decision-maker contacts tracked across these 347 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 4, 2026.
Ready to reach these companies? Verified emails and direct dials for all 347 IT services companies based in Madrid, Spain. Start with a free account, no credit card.
Download this list →Related lists
IT services companies by geography
- IT services companies based in the United States
- IT services companies based in the United Kingdom
- IT services companies based in Brazil
- IT services companies based in Germany
- IT services companies based in France
- IT services companies based in Canada
- IT services companies based in Australia
- IT services companies based in Italy
- IT services companies based in Spain
- IT services companies based in the Netherlands
- IT services companies based in South Africa
- IT services companies based in Mexico
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- IT services companies based in the United States
- IT services companies based in the United Kingdom
- IT services companies based in Brazil
- IT services companies based in Germany
- IT services companies based in France
- IT services companies based in Canada