Company lists · Data refreshed September 2026
Top 25 Enterprise cloud transformation companies based in Barcelona, Spain
RevenueBase identified 113 enterprise cloud transformation companies headquartered in Barcelona, Spain as of September 2026 and tracks 11,602 professional contacts across them, including 2,705 with verified work emails. Across Spain, Madrid is the largest hub for this category (229 companies); Barcelona follows with 113.
This list covers enterprise cloud transformation companies headquartered in Barcelona, 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 enterprise cloud transformation companies based in Barcelona, 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 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,576 contacts → | ||||
Indirect evidence “En T-Systems, encontrarás proyectos rompedores que suman al bienestar social y ecológico.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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. | |||||
| 4 | 391 contacts → | ||||
Indirect evidence “Somos una compañía independiente con más de 30 años en el mercado Español implantando soluciones tecnológicas completas, innovadoras y estratégicas para nuestros clientes.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 342 contacts → | ||||
Indirect evidence “Are you Ready?” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 140 contacts → | ||||
Partial evidence “Quantion provides end-to-end technology and digital services, supporting organizations throughout their digital transformation journey, from strategic definition to technology…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 132 contacts → | ||||
Indirect evidence “Aktios nace en 2013 con el objetivo de convertir la complejidad tecnológica en crecimiento real de negocio.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 126 contacts → | ||||
Indirect evidence “Driving innovation.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 123 contacts → | ||||
Indirect evidence “PowerData es una empresa multinacional de origen español con más de 25 años de experiencia en gestión de datos, apoyando a organizaciones en su camino hacia la transformación…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 120 contacts → | ||||
Partial evidence “Altostratus is a professional and managed cloud services consultancy belonging to the Telefónica Tech holding.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 64 contacts → | ||||
Indirect evidence “Tu tecnología impulsa tu negocio o lo frena?” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 47 contacts → | ||||
Partial evidence “Somos una consultora tecnológica especialista en digitalización y ciberseguridad, Top Partner Cloud de Microsoft.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 47 contacts → | ||||
Partial evidence “Ackstorm, con más de 14 años de experiencia en la Gestión e Integración de Sistemas, somos expertos en el Diseño, Implementación y Administración 24x7 de plataformas Cloud para…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 35 contacts → | ||||
Indirect evidence “Konozca Consultoría Tecnológica Estratégica, especializada en ayudar a las empresas a obtener Valor y Ventaja Competitiva a través de los Sistemas Informáticos Ofrece también…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 35 contacts → | ||||
Indirect evidence “Avannubo es un proveedor global de productos y servicios tecnológicos con más de 20 años de experiencia ayudando a empresas de todos los sectores a evolucionar y crecer gracias a…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 33 contacts → | ||||
Partial evidence “ForgeFlow provides Business and Information Technology Consulting Services to help companies in their Digital Transformation and adapt to the new volatile, uncertain, complex and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 27 contacts → | ||||
Partial evidence “En Ausum Cloud, ofrecemos nuestra colaboración con un modelo de acompañamiento de 360 grados.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 26 contacts → | ||||
Indirect evidence “En Océano empoderamos a las empresas a navegar las aguas turbulentas de la transformación digital para resurgir más fuertes y ágiles en un mundo inmerso en un cambio constante.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 24 contacts → | ||||
Indirect evidence “Desde Beservices proponemos soluciones tecnológicas para tu empresa en tres áreas de conocimiento: Infraestructura de sistemas, transformación digital y ciberseguridad: Te…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 22 contacts → | ||||
Partial evidence “We offer to our customers a strong and experienced support on the Digital Transformation process, helping them to apply properly the Digital Framework and new Digital Technologies.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 22 contacts → | ||||
Partial evidence “Conecta Wireless is a strategic partner in digital transformation, specializing in the integration of advanced IT technology, Data & AI, and Telecommunications, to optimize…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 21 contacts → | ||||
Partial evidence “En Atlas Enterprise Software, somos expertos en consultoría, diseño y desarrollo de soluciones de software para empresas.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 18 contacts → | ||||
Indirect evidence “Empoderamos con tecnología segura, creativa y de valor a instituciones y medianas empresas que necesitan ese impulso digital para evolucionar y llegar de nuevo a su audiencia.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 14 contacts → | ||||
Indirect evidence “ICM es una consultoría tecnológica y servicios IT, que persigue encontrar la mejor solución técnica para cada uno de sus clientes.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 12 contacts → | ||||
Indirect evidence “Somos un equipo formado por profesionales con más de 25 años de experiencia trabajando en el mundo de la informática, especializados en los últimos años en el campo de la…” 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: enterprise cloud transformation 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 enterprise cloud transformation companies.
- Partial evidence
- Its own public description names part of enterprise cloud transformation companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name enterprise cloud transformation 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 113 enterprise cloud transformation companies based in Barcelona, Spain
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Enterprise cloud transformation companies based in Barcelona, Spain at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured across the whole Spain list rather than for Barcelona, so it is reported there. Company counts and contact totals on this page are exact for Barcelona, over 113 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 enterprise cloud transformation 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 Barcelona, Spain whose own description of what they do matches “enterprise cloud transformation 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 enterprise cloud transformation 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 enterprise cloud transformation companies, and records with no verified work email. Companies headquartered outside Barcelona 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, 2,705 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.
Enterprise cloud transformation 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 enterprise cloud transformation 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 enterprise cloud transformation companies are there based in Barcelona, Spain?
RevenueBase identified 113 enterprise cloud transformation companies headquartered in Barcelona, 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 in Spain has the most enterprise cloud transformation companies?
Madrid leads Spain with 229 headquartered companies, followed by Barcelona (113) and Valencia (17).
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 2,705 verified decision-maker contacts tracked across these 113 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.
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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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