Company lists · Data refreshed September 2026
Top 24 Media agencies based in Spain
RevenueBase identified 2,186 media agencies headquartered in Spain as of September 2026 and tracks 22,089 professional contacts across them, including 2,509 with verified work emails and 352 with mobile numbers. Madrid is the largest hub.
This list covers media 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 24 largest media agencies based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 274 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | Lola MullenloweIndirect evidence | 259 | |||
“LOLA MullenLowe is a creative agency based in Madrid, built from world-class international talent.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 227 | ||||
“Somos especialistas en marketing comercial y promocional, con más de 18 años de experiencia en el sector.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 191 | ||||
“PHD es una de las agencias de medios perteneciente al grupo Omnicom.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 154 | ||||
“iProspect suma ahora más innovación, data, tecnología y talento para construir su propuesta de valor diferencial junto con las características que definieron durante toda su…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 149 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 137 | ||||
“Manifiesto is an advertising agency based in Barcelona and Madrid and with 10 years of experience in the sector.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 134 | ||||
“Somos After, una agencia de publicidad -por ponernos una etiqueta- que mezcla estrategia, creatividad y cultura digital.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 117 | ||||
“En 014 Media somos el grupo especializado en la comercialización de soportes publicitarios en entornos altamente segmentados y audiencias cualitativas.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 114 | ||||
“MIO Group es un ecosistema integrado de talento especialista en estrategia de marketing, creación de activos digitales y activación de medios.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 113 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | Mccann Worldgroup SpainIndirect evidence | 112 | |||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 109 | ||||
“Vidoomy is a company focused on Video advertising.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 106 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 102 | ||||
“Somos una agencia de servicios plenos en la que trabajamos profesionales venidos de diferentes experiencias (creación, cuentas, planificación, interactivo.) Aplicamos la cercanía…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 102 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 100 | ||||
“Adglow collaborates with advertisers and agencies around the world to upscale their social advertising campaigns.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 94 | ||||
“Zenith es The ROI Agency.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 91 | ||||
“We're Smäll, the independent advertising agency that believes in the size of ideas, not of structures.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | Multiplatform ContentIndirect evidence | 91 | |||
“Somos una compañía independiente líder en la producción y distribución de contenido y gestión de redes sociales-Gestionamos íntegramente la comunicación online de nuestros…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 86 | ||||
“Irismedia, es una agencia de medios, de servicios plenos, que van desde la Estrategia, planificación y compra de Medios, tanto de offline, como Online.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 84 | ||||
“Everyone Plus es una agencia de publicidad productiva con una imprenta creativa.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 81 | ||||
“Somos una agencia de marketing digital con un propósito: aprovechar los canales digitales para construir marcas que marcan y negocios que crecen.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 77 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 24 of 2,186 media agencies based in Spain
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Media agencies based in Spain at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 media agencies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Spain whose own description of what they do matches “media agencies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among media 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 an evidence 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, 2,509 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 5, 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.
Media agencies by metro
- Media agencies in Madrid701
- Media agencies in Barcelona360
- Media agencies in Valencia72
- Media agencies in Malaga46
- Media agencies in Sevilla40
- Media agencies in Zaragoza29
Frequently asked
How many media agencies are there based in Spain?
RevenueBase identified 2,186 media 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?
Publicis Groupe España, headquartered in Madrid, tops this list with the largest team on record.
Which city has the most media agencies?
Madrid leads with 701 headquartered companies, followed by Barcelona (360) and Valencia (72).
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 2,509 verified decision-maker contacts tracked across these 2,186 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 5, 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 SmartSearch, 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.