Company lists · Data refreshed September 2026
Top 25 Full-service advertising agencies based in Spain
RevenueBase identified 2,590 full-service advertising agencies headquartered in Spain as of September 2026 and tracks 22,674 professional contacts across them, including 2,186 with verified work emails and 940 with mobile numbers. Madrid is the largest hub.
This list covers full-service advertising 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 3, 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 25 largest full-service advertising agencies based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | Lola MullenloweIndirect evidence | 257 | |||
“LOLA MullenLowe is a creative agency based in Madrid, built from world-class international talent.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 227 | ||||
“Somos especialistas en marketing comercial y promocional, con más de 18 años de experiencia en el sector.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 158 | ||||
“Conway+Partners is a full-service, integrated branding and marketing agency, headquartered in NYC, that specializes in the real estate and hospitality industries.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 151 | ||||
“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 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 133 | ||||
“Somos After, una agencia de publicidad -por ponernos una etiqueta- que mezcla estrategia, creatividad y cultura digital.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 112 | ||||
“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 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | Mccann Worldgroup SpainIndirect evidence | 111 | |||
“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 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 105 | ||||
“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 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 99 | ||||
“Hola, somos Tangoº.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | 84 | ||||
“Everyone Plus es una agencia de publicidad productiva con una imprenta creativa.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | 75 | ||||
“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 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | 74 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | 71 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | 70 | ||||
“Godó Strategies ofrece soluciones 360° en una amplia cartera de clientes.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | 69 | ||||
“We believe that change has become the defining characteristic in today’s business environment.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | 69 | ||||
“Somos una agencia de publicidad universal, europea, española, madrileña, pequeña e independiente con clientes como Burger King, Ecovidrio, Cortefiel, Prosegur, Loewe, Subaru o la…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 60 | ||||
“Grupo GO es un grupo de marketing de influencia fundado por Paloma Miranda en 2015.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | 57 | ||||
“DoubleYou is a communication company aimed at the creation and development of projects and campaigns in the current framework, shaped by media digitalization.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | 57 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | 57 | ||||
“Proximity es la agencia que ofrece soluciones integradas en marketing y comunicación para la edad digital.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | 53 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 24 | 49 | ||||
“Ayudamos a las marcas a crecer a través de la comprensión del marketing moderno y de la nueva economía de la comunicación.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 25 | 49 | ||||
“Somos Mindshare.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 2,590 full-service advertising agencies based in Spain
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Full-service advertising agencies based in Spain at a glance
As of Sep 3, 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 full-service advertising 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 “full-service advertising 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 full-service advertising 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, 2,186 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 3, 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.
Full-service advertising agencies by metro
- Full-service advertising agencies in Madrid662
- Full-service advertising agencies in Barcelona412
- Full-service advertising agencies in Valencia88
- Full-service advertising agencies in Malaga66
- Full-service advertising agencies in Sevilla55
- Full-service advertising agencies in Bilbao33
- Full-service advertising agencies in Vigo33
Frequently asked
How many full-service advertising agencies are there based in Spain?
RevenueBase identified 2,590 full-service advertising 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?
Lola Mullenlowe, headquartered in Madrid, tops this list with the largest team on record.
Which city has the most full-service advertising agencies?
Madrid leads with 662 headquartered companies, followed by Barcelona (412) and Valencia (88).
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 2,186 verified decision-maker contacts tracked across these 2,590 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 3, 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.
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