Company lists · Data refreshed September 2026
Top 25 IT B2B marketing agencies based in Spain
RevenueBase identified 1,364 IT B2B marketing agencies headquartered in Spain as of September 2026 and tracks 7,691 professional contacts across them, including 950 with verified work emails and 166 with mobile numbers. Madrid is the largest hub.
This list covers IT B2B marketing agencies 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 26, 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 B2B marketing agencies based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 207 contacts → | ||||
Indirect evidence “The Customer Value Agency Somos la agencia digital de ventas que te acompaña captando y cuidando a tus clientes.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 2 | 194 contacts → | ||||
Partial evidence “BNZSA, powered by Anteriad is a leading marketing agency specialising in tele-based demand generation with a team of more than 350 who are experts in delivering qualified…” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 3 | 128 contacts → | ||||
Indirect evidence “adSalsa is one of the Leading Lead Generation and Database Agencies in Europe.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 4 | 113 contacts → | ||||
Partial evidence “Ayudamos a las marcas a crear y ejecutar sus estrategias de marketing a través del contenido y de la publicidad para generar resultados de negocio.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 5 | 106 contacts → | ||||
Partial evidence “HMG es una agencia que pertenece a MIO Group, grupo empresarial de servicios integrales de Marketing y Publicidad presidido por Yago Arbeloa, y con capital cien por cien español.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 6 | 89 contacts → | ||||
Indirect evidence “InboundCycle is an agency specializing in inbound methodologies, founded in 2011.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 7 | 83 contacts → | ||||
Partial evidence “Vertigo Media is a Digital Marketing Agency, specialized in generating qualified leads for all businesses.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 8 | 77 contacts → | ||||
Indirect evidence “Somos un equipo que crece y evoluciona con sus clientes, que se adapta a las nuevas tendencias para ofrecer, en todo momento a sus marcas, grandes dosis de creatividad y el mix de…” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 9 | 77 contacts → | ||||
Partial evidence “Somos IMAGINA, la Agencia experta en Marketing Digital y Redes Sociales.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 10 | 73 contacts → | ||||
Partial evidence “Somos una agencia que resuelve las necesidades de las marcas a través de estrategias de Marketing Digital basadas en el conocimiento profundo de los negocios.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 11 | 63 contacts → | ||||
Indirect evidence “Agencia EGO es donde la creatividad se encuentra con la estrategia.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 12 | 61 contacts → | ||||
Partial evidence “INDI marketers somos un grupo de personas relacionadas con el marketing, periodistas, comunicadores, expertos en imagen y diseño.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 13 | 59 contacts → | ||||
Indirect evidence “General Servei S.A, con más de 30 años de experiencia avalada por la fidelidad de los mejores clientes, se ha posicionado a lo largo de su trayectoria como empresa líder en…” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 14 | 56 contacts → | ||||
Indirect evidence “Dobuss: visibilidad, captación y crecimiento digital.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 15 | 55 contacts → | ||||
Indirect evidence “Necesitas mejorar el rendimiento de tu negocio online?” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 16 | 54 contacts → | ||||
Partial evidence “La agencia de marketing digital full service en la que especialistas de cada disciplina trabajan en equipo para ofrecer a los departamentos de marketing todos los servicios que…” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 17 | 52 contacts → | ||||
Partial evidence “Somos una agencia con mentalidad de estudio boutique que se dedica a trabajar en lo único que sabe hacer bien: marketing digital.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 18 | 52 contacts → | ||||
Partial evidence “Somos una empresa de servicios de digitalización de marketing y creatividad para empresas con red de distribución.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 19 | 51 contacts → | ||||
Indirect evidence “Dentsu X, la agencia de mejor performance del mercado, conecta a través de los medios, los contenidos, los datos y la tecnología.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 20 | 48 contacts → | ||||
Indirect evidence “Somos una agencia de publicidad y atendemos las necesidades de de nuestros clientes, proporcionandoles servicios diferenciales y de alta calidad.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 21 | 47 contacts → | ||||
Partial evidence “Agencia de marketing digital integral con más de 25 años de experiencia.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 22 | 46 contacts → | ||||
Partial evidence “sum (suma | une | mueve) es la compañía que trabaja para empresas con modelos de negocio B2B con el objetivo de mejorar las cifras de la primera línea de la cuenta de resultados.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 23 | 42 contacts → | ||||
Strong evidence “Somos una agencia de Marketing y Ventas B2B.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 24 | 42 contacts → | ||||
Partial evidence “Meydis es una mezcla única de creatividad, consultoría, tecnología, datos, innovación y marketing operacional trabajando juntas para lograr maximizar el retorno de las acciones de…” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 25 | 42 contacts → | ||||
Partial evidence “Amazing is an Amazon-Centric Marketing Agency.” Source: RevenueBase Database · checked Sep 26, 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 B2B marketing agencies. 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 B2B marketing agencies.
- Partial evidence
- Its own public description names part of IT B2B marketing agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT B2B marketing agencies. 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 1,364 IT B2B marketing agencies based in Spain
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IT B2B marketing agencies based in Spain at a glance
As of Sep 26, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 29.0dCompany record updated
Median 85.0dHow 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 B2B marketing agencies, 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 B2B marketing agencies”. 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 B2B marketing agencies), 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 B2B marketing agencies, 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, 950 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 26, 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 B2B marketing agencies 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 B2B marketing agencies, 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 B2B marketing agencies are there based in Spain?
RevenueBase identified 1,364 IT B2B marketing agencies 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?
ACCOM, headquartered in Madrid, tops this list with the largest team on record.
Which city has the most IT B2B marketing agencies?
Madrid leads with 330 headquartered companies, followed by Barcelona (239) and Valencia (69).
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 950 verified decision-maker contacts tracked across these 1,364 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 26, 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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