Company lists · Data refreshed September 2026
Top 25 IT transformation services based in Spain
RevenueBase identified 562 IT transformation services headquartered in Spain as of September 2026 and tracks 34,688 professional contacts across them, including 5,652 with verified work emails. Madrid is the largest hub.
This list covers IT transformation services 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 IT transformation services based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,133 contacts → | ||||
Partial evidence “At SEIDOR we help drive the transformation and competitiveness of our clients through technology and innovation, always focusing on the human value and prioritizing talents and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,292 contacts → | ||||
Partial evidence “VASS is a global technology company specialized in generating business value through intelligent (digital) transformation, integrating technology, data, artificial intelligence…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,027 contacts → | ||||
Indirect evidence “We are knowmad mood!(formerly atSistemas).” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,636 contacts → | ||||
Indirect evidence “We are a multinational company specialized in different leading technology platforms such as SAP, Salesforce, Microsoft, OpenText and other software providers that are part of our…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,541 contacts → | ||||
Indirect evidence “Somos Entelgy,#TheBusinessTechConsultancy, un acelerador de la transformación para quienes necesitan seguir siendo competitivos en un mundo cambiante a gran velocidad.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,327 contacts → | ||||
Indirect evidence “Sociedad Ibérica de Construcciones Eléctricas (SICE) is a multinational company integrating systems, aimed at solving market needs.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 720 contacts → | ||||
Partial evidence “Grupo Teknei es una empresa líder en el sector tecnológico, especializada en la consultoría, desarrollo de software y soluciones IT.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 391 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 375 contacts → | ||||
Indirect evidence “We are a technology consulting company, formed by different benchmark brands, which creates, through specialization in areas and technological and strategic divisions, an…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 342 contacts → | ||||
Indirect evidence “Are you Ready?” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 317 contacts → | ||||
Indirect evidence “We are a global consulting, technology, and professional services firm with over 25 years of experience.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 309 contacts → | ||||
Partial evidence “VISEO is a global digital and business consulting company that assists its clients with their transformation journeys using advanced technology and industry expertise.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 304 contacts → | ||||
Partial evidence “Panel Systems is a technology company specialized in software development, software quality assurance, and IT services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 292 contacts → | ||||
Indirect evidence “BIP es una consultora internacional especializada, desde su fundación en 2003, en facilitar la transformación end-to-end de los negocios de sus clientes, donde “hacemos que las…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 288 contacts → | ||||
Indirect evidence “We work with technology for the future, to achieve results in the present.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 272 contacts → | ||||
Partial evidence “We are specialists in guiding our customers through the digital transformation process.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 237 contacts → | ||||
Indirect evidence “Profile Software Services is a software architecture and development company, made up of more than 140 people, experts in Software Architecture, Web and Mobile Developement, Cloud…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 223 contacts → | ||||
Partial evidence “We are a company specialising in the delivery of best-in-class technology and digital transformation services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 209 contacts → | ||||
Indirect evidence “TERALCO GROUP es un referente de desarrollo tecnológico que impulsa la transformación digital de tu empresa aportando soluciones a medida y creando ventajas competitivas, basadas…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 185 contacts → | ||||
Partial evidence “FDS es una compañía perteneciente a DXC Technology, empresa global de servicios de IT.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 178 contacts → | ||||
Partial evidence “DISID is a technology consulting company that carries out Digital Transformation projects following a model of technological partner, we help our clients with the latest…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 174 contacts → | ||||
Indirect evidence “Mindden es una empresa formada por profesionales con más de 15 años de experiencia en el mundo de la consultoría y el desarrollo de proyectos en el área de Servicios y Tecnología…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 171 contacts → | ||||
Indirect evidence “En ARBENTIA somos una consultora especializada en tecnología que impulsa la transformación digital de las empresas.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 167 contacts → | ||||
Partial evidence “OpenSistemas is an international IT solutions provider with a proven track record in working with fast moving organisations looking to achieve quicker, more cost effective results…” 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: IT transformation services. 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 transformation services.
- Partial evidence
- Its own public description names part of IT transformation services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT transformation services. 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 562 IT transformation services based in Spain
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 5,652 reachable decision-makers.
Free signup · no credit card
IT transformation services 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 562 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 transformation services, 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 transformation services”. 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 transformation services), 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 transformation services, 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, 5,652 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.
IT transformation services by metro
- IT transformation services in Madrid198
- IT transformation services in Barcelona98
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 transformation services, 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 transformation services are there based in Spain?
RevenueBase identified 562 IT transformation services 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?
Seidor, headquartered in Barcelona, tops this list with the largest team on record.
Which city has the most IT transformation services?
Madrid leads with 198 headquartered companies, followed by Barcelona (98) and Valencia (16).
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 5,652 verified decision-maker contacts tracked across these 562 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.
Ready to reach these companies? Verified emails and direct dials for all 562 IT transformation services based in Spain. Start with a free account, no credit card.
Download this list →Related lists
IT transformation services by geography
- IT transformation services based in Adelaide, Australia
- IT transformation services based in Brisbane, Australia
- IT transformation services based in Melbourne, Australia
- IT transformation services based in Perth, Australia
- IT transformation services based in Sydney, Australia
- IT transformation services based in Barueri, Brazil
- IT transformation services based in Belo Horizonte, Brazil
- IT transformation services based in Rio De Janeiro, Brazil
- IT transformation services based in Sao Paulo, Brazil
- IT transformation services based in Calgary, Canada
- IT transformation services based in Mississauga, Canada
- IT transformation services based in Montreal, Canada
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 transformation services based in Adelaide, Australia
- IT transformation services based in Brisbane, Australia
- IT transformation services based in Melbourne, Australia
- IT transformation services based in Perth, Australia
- IT transformation services based in Sydney, Australia
- IT transformation services based in Barueri, Brazil