Company lists · Data refreshed August 2026
Top 25 Marketing agencies based in Spain
This directory contains 10,645 marketing agencies based in Spain, with contact details for 75,104 people and 8,704 email addresses. As of August 2026, Madrid is the single most-represented city among the companies listed.
Marketing agencies provide services such as strategy, branding, advertising, content, market research, and campaign management to help organizations reach and engage customers. This list covers companies that provide marketing strategy, creative, advertising, digital marketing, public relations, content, or related marketing services to clients. Ranked by team size, largest first. Data current as of August 29, 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 marketing agencies based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,925 contacts → | ||||
Strong evidence “IPG Mediabrands is the media and marketing solutions division of Interpublic Group (NYSE: IPG).” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,529 contacts → | ||||
Indirect evidence “Together, we enhance and protect the value of your business.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 451 contacts → | ||||
Strong evidence “Adsmurai is a Growth-Tech Partner that helps brands transform marketing into a connected, measurable, and scalable growth system.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 305 contacts → | ||||
Indirect evidence “Shuttlerock blends human creativity and purpose-built technology to scale effective digital content.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 276 contacts → | ||||
Indirect evidence “Publicis Groupe, segundo grupo de comunicación a nivel mundial, es una plataforma de soluciones que está presente en más de 100 países y cuenta con más de colaboradores.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 231 contacts → | ||||
Strong evidence “En Grupo Caher somos expertos en aplicar las herramientas del marketing para la activación de ventas.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 227 contacts → | ||||
Strong evidence “Somos especialistas en marketing comercial y promocional, con más de 18 años de experiencia en el sector.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 208 contacts → | ||||
Strong evidence “We combine knowledge and experience to build digital marketing solutions together with our clients” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 206 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 Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 199 contacts → | ||||
Strong evidence “Mediapost es una compañía líder en servicios de marketing relacional que te ofrece una amplia gama de soluciones multicanal que te ayudarán a captar nuevos clientes, fidelizar a…” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 158 contacts → | ||||
Indirect evidence “Cheil Spain is an integrated agency, focused on disruptive creativity fueled by innovation and data to help brands grow by creating connected experiences that generate real impact…” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 151 contacts → | ||||
Indirect evidence “OMD es una de las agencias líderes en España y se ha destacado por ser la más eficaz e innovadora de la industria española, contando con todos los recursos para dar un servicio…” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 115 contacts → | ||||
Indirect evidence “En 014 Media somos el grupo especializado en la comercialización de soportes publicitarios en entornos altamente segmentados y audiencias cualitativas.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 112 contacts → | ||||
Strong evidence “MIO Group es un ecosistema integrado de talento especialista en estrategia de marketing, creación de activos digitales y activación de medios.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 111 contacts → | ||||
Strong evidence “McCann Worldgroup, parte de Interpublic Group (NYSE: IPG), es una red global líder de soluciones de marketing con más de 20 empleados unidos en más de 100 países por una sola…” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 101 contacts → | ||||
Indirect evidence “Havas Digital is the umbrella holding company that manages all Havas Media's interactive companies: Media Contacts and Lattitud, global interactive media networks; iGlue, new…” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 82 contacts → | ||||
Indirect evidence “Somos uno de los principales Grupos de comunicación de España.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 74 contacts → | ||||
Indirect evidence “Nos gusta escuchar para ayudar y compartir nuestra experiencia para AVANZAR, Iniciamos nuestra andadura en 1954, bajo la denominación de Talleres MARVA, con una actitud valiente…” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 71 contacts → | ||||
Indirect evidence “En OmnicomMediaGroup creamos soluciones sólidas que impactan en el resultado de negocio de nuestros clientes, basadas en un end-to-end process manteniendo siempre al consumidor en…” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 69 contacts → | ||||
Indirect evidence “We believe that change has become the defining characteristic in today’s business environment.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 57 contacts → | ||||
Indirect evidence “UM Spain is a global media agency committed to transforming its clients' businesses for the present and the future.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 57 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 Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 19 contacts → | ||||
Strong evidence “SAMY Alliance is a global ecosystem of specialized and integrated marketing and communications solutions founded on consumer understanding and state–of-the-art-creativity.” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 15 contacts → | ||||
Indirect evidence “Hola somos Boost, agencia creativa especialista en marca, producto y estrategias diferenciales.Formamos parte de una consultora tecnológica y de negocio, y nuestra noble tarea se…” Source: RevenueBase Database · checked Aug 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 15 contacts → | ||||
Strong evidence “Somos una consultora digital enfocada en el marketing y la comunicación.” Source: RevenueBase Database · checked Aug 29, 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: 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 marketing agencies.
- Partial evidence
- Its own public description names part of marketing agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name 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 10,645 marketing agencies based in Spain
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Marketing agencies based in Spain at a glance
As of Aug 29, 2026Companies by employee count
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 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 “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 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 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, 8,704 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 August 29, 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.
Marketing agencies by metro
- Marketing agencies in Madrid2768
- Marketing agencies in Barcelona1843
- Marketing agencies in Valencia448
- Marketing agencies in Malaga249
- Marketing agencies in Sevilla196
- Marketing agencies in Bilbao142
- Marketing agencies in Alicante138
Frequently asked
How many marketing agencies are based in Spain?
The directory lists 10,645 marketing agencies based in Spain.
Where can I find contact information for marketing agencies?
This directory includes contact details for 75,104 people and 8,704 email addresses associated with the listed marketing agencies.
Which city has the most marketing agencies?
Madrid is the single most-represented city among the marketing agencies on the list.
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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.