Company lists · Data refreshed September 2026
Top 25 IT systems integrators based in Spain
RevenueBase identified 377 IT systems integrators headquartered in Spain as of September 2026 and tracks 11,080 professional contacts across them, including 1,681 with verified work emails. Madrid is the largest hub.
This list covers IT systems integrators 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 28, 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 IT systems integrators based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,327 contacts → | ||||
Partial evidence “Sociedad Ibérica de Construcciones Eléctricas (SICE) is a multinational company integrating systems, aimed at solving market needs.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,130 contacts → | ||||
Strong evidence “Since 1988, SATEC is a global system integrator that was born in the supercomputing ecosystem.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 676 contacts → | ||||
Indirect evidence “Sothis was founded in 2008 in order to lead a change in the way we offer information technology services, with a clear vision on the impact that technology can have on our…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 547 contacts → | ||||
Indirect evidence “Logicalis es una compañía de referencia tanto en España como en los países en los que opera.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 449 contacts → | ||||
Indirect evidence “Experiencia, especialización y calidad de servicio son los tres valores clave en los que SIRT basa su actividad y la relación con sus clientes.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 418 contacts → | ||||
Partial evidence “GTD is a high-tech company, committed to the design, integration and operation of complex, mission-critical applications and systems throughout the world.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 320 contacts → | ||||
Indirect evidence “Perteneciente al Grupo CPS, somos una empresa integradora de sistemas con vocación internacional que ofrece a sus clientes soluciones globales, en los mercados del Transporte…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 284 contacts → | ||||
Strong evidence “Timestamp is a leading IT consultancy with over 20 years’ experience in digital transformation and systems integration.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 227 contacts → | ||||
Indirect evidence “EDISA es una empresa fundada en el año 1983 centrada en la integración de sistemas basados en las últimas Tecnologías de la Información, así como en el desarrollo e implantación…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 217 contacts → | ||||
Indirect evidence “Impulsamos el cambio.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 204 contacts → | ||||
Partial evidence “En LIDER IT Consulting llevamos más de 40 años ayudando a nuestros clientes a mejorar la gestión mediante la consultoría, el desarrollo y la implantación de soluciones integradas.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 170 contacts → | ||||
Strong evidence “IAAS 365 is a Spanish IT service provider specialising in systems integration, IT Professional Services over the customer Datacenter, Support services over customers…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 155 contacts → | ||||
Indirect evidence “With offices in Europe (Spain, Portugal and Switzerland) and the United States, our main lines of activity are: • GMP: we automate and validate biotech and pharmaceutical plants.” Source: RevenueBase Database · checked Sep 28, 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 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 150 contacts → | ||||
Partial evidence “Somos una marca global de Ingeniería en integración de soluciones de Telecomunicaciones y Sistemas IT con más de 35 años de experiencia.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 147 contacts → | ||||
Strong evidence “IT Systems integrator company especialized in IT storage systems, backup disaster recovery and server virtualization.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 138 contacts → | ||||
Indirect evidence “Con más de cuatro décadas de presencia y de experiencia en el mercado de la Península Ibérica, IPM, a Ricoh Company proporciona soluciones estratégicas en el ámbito de las…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 125 contacts → | ||||
Indirect evidence “Nologin is a company with advanced knowhow in the field of Information Technology, providing quality services and solutions for clients worldwide.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 110 contacts → | ||||
Indirect evidence “Órbita Ingeniería es una empresa dedicada al diseño, fabricación y puesta en marcha de soluciones tecnológicas que mejoran los procesos operativos de nuestros clientes, aumentando…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 106 contacts → | ||||
Indirect evidence “EinzelNet es parte del ecosistema de Unikal, un especialista de especialistas con un extenso porfolio de servicios diseñado para de responder a las necesidades tecnológicas de…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 100 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 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 91 contacts → | ||||
Indirect evidence “Indigo Grup es una organización dedicada a la consultoría e intergración de soluciones TIC profesionales.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 72 contacts → | ||||
Partial evidence “PROSOL es una compañía IT que ayuda a las empresas a mejorar su arquitectura tecnológica y a estar a la última en la innovación digital, haciendo posible su proceso de…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 68 contacts → | ||||
Indirect evidence “Somos un proveedor global de soluciones integrales en redes, cloud, aplicaciones, seguridad y consultoría.” Source: RevenueBase Database · checked Sep 28, 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 systems integrators. 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 systems integrators.
- Partial evidence
- Its own public description names part of IT systems integrators, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT systems integrators. 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 377 IT systems integrators based in Spain
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,681 reachable decision-makers.
Free signup · no credit card
IT systems integrators based in Spain at a glance
As of Sep 28, 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 377 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 systems integrators, 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 “IT systems integrators”. 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 systems integrators), 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 systems integrators, 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, 1,681 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 28, 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 systems integrators by metro
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 systems integrators, 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 systems integrators are there based in Spain?
RevenueBase identified 377 IT systems integrators 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?
SICE, headquartered in Alcobendas, tops this list with the largest team on record.
Which city has the most IT systems integrators?
Madrid leads with 83 headquartered companies, followed by Barcelona (45) and Valencia (12).
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 1,681 verified decision-maker contacts tracked across these 377 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 28, 2026.
Ready to reach these companies? Verified emails and direct dials for all 377 IT systems integrators based in Spain. Start with a free account, no credit card.
Download this list →Related lists
IT systems integrators by geography
- IT systems integrators based in Buenos Aires, Argentina
- IT systems integrators based in Brisbane, Australia
- IT systems integrators based in Melbourne, Australia
- IT systems integrators based in Perth, Australia
- IT systems integrators based in Sydney, Australia
- IT systems integrators based in Baku, Azerbaijan
- IT systems integrators based in Dhaka, Bangladesh
- IT systems integrators based in Barueri, Brazil
- IT systems integrators based in Belo Horizonte, Brazil
- IT systems integrators based in Campinas, Brazil
- IT systems integrators based in Curitiba, Brazil
- IT systems integrators based in Porto Alegre, Brazil
Browse the directory
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 systems integrators based in Buenos Aires, Argentina
- IT systems integrators based in Brisbane, Australia
- IT systems integrators based in Melbourne, Australia
- IT systems integrators based in Perth, Australia
- IT systems integrators based in Sydney, Australia
- IT systems integrators based in Baku, Azerbaijan