Company lists · Data refreshed September 2026

Top 25 Full service marketing agencies based in Spain

Name: Full service marketing agencies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 8,335 companies tracked

RevenueBase identified 8,335 full service marketing agencies headquartered in Spain as of September 2026 and tracks 54,238 professional contacts across them, including 6,031 with verified work emails and 1,688 with mobile numbers. Madrid is the largest hub.

This list covers full service 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, 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.

How to read this list Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

8,335Companies

54,238Contacts tracked

6,031Verified emails

1,688Mobile numbers

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The 25 largest full service marketing agencies based in Spain

Ranked by team size

Top 25 of 8,335 full service marketing agencies based in Spain, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names full service marketing agencies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	IPG MediabrandsPartial evidence	Madrid, Spain	10001+	4,925
	“IPG Mediabrands is the media and marketing solutions division of Interpublic Group (NYSE: IPG).” Source: company website · checked Sep 3, 2026
2	LLYCIndirect evidence	Madrid, Spain	1,001-5,000	1,529
	“Together, we enhance and protect the value of your business.” Source: company website · checked Sep 3, 2026
3	Momentum Task ForcePartial evidence	Madrid, Spain	201-500	227
	“Somos especialistas en marketing comercial y promocional, con más de 18 años de experiencia en el sector.” Source: company website · checked Sep 3, 2026
4	Julius Connected 2 GrowPartial evidence	Madrid, Spain	201-500	208
	“We combine knowledge and experience to build digital marketing solutions together with our clients” Source: company website · checked Sep 3, 2026
5	Iprospect SpainIndirect evidence	Madrid, Spain	51-200	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 3, 2026
6	OMD EspañaIndirect evidence	Madrid, Spain	201-500	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, 2026
7	IncrentaIndirect evidence	Barcelona, Spain	51-200	134
	“We are the agency to develop your business on the Internet.” Source: company website · checked Sep 3, 2026
8	AFTERIndirect evidence	Spain	51-200	133
	“Somos After, una agencia de publicidad -por ponernos una etiqueta- que mezcla estrategia, creatividad y cultura digital.” Source: company website · checked Sep 3, 2026
9	PDMPartial evidence	Alcobendas, Spain	51-200	123
	“Marketing Consulting firm focused on Customer Experience, providing an innovative, omnichannel and technological vision.” Source: company website · checked Sep 3, 2026
10	Darwin & VerneIndirect evidence	Madrid, Spain	51-200	117
	“There is Darwin in everything and there is Verne in everything.” Source: company website · checked Sep 3, 2026
11	MIO GroupPartial evidence	Madrid, Spain	201-500	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, 2026
12	Mccann Worldgroup SpainPartial evidence	Madrid, Spain	501-1,000	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, 2026
13	MIO ONEPartial evidence	Madrid, Spain	51-200	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, 2026
14	BURNSIndirect evidence	Madrid, Spain	51-200	103
	“Merging human with digital.” Source: company website · checked Sep 3, 2026
15	CoonicPartial evidence	Bilbao, Spain	51-200	95
	“Somos una agencia de comunicación y relaciones públicas, marketing digital y contenidos.” Source: company website · checked Sep 3, 2026
16	Zenith EspañaIndirect evidence	Madrid, Spain	51-200	92
	“Zenith es The ROI Agency.” Source: company website · checked Sep 3, 2026
17	22gradosPartial evidence	Las Palmas De Gran Canaria, Spain	51-200	79
	“Somos la compañía canaria de marketing.” Source: company website · checked Sep 3, 2026
18	JFT ComunicaciónIndirect evidence	Las Palmas De Gran Canaria Las Palmas De Gran Canaria, Spain	51-200	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, 2026
19	Grupo MarvaIndirect evidence	Madrid, Spain	201-500	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, 2026
20	Publicis EspañaIndirect evidence	Madrid, Spain	201-500	69
	“We believe that change has become the defining characteristic in today’s business environment.” Source: company website · checked Sep 3, 2026
21	RK PeopleIndirect evidence	Madrid, Spain	51-200	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, 2026
22	Grupo GOPartial evidence	Madrid, Spain	51-200	60
	“Grupo GO es un grupo de marketing de influencia fundado por Paloma Miranda en 2015.” Source: company website · checked Sep 3, 2026
23	DoubleyouIndirect evidence	Barcelona, Spain	51-200	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, 2026
24	General Servei S.AIndirect evidence	Torrejon De Ardoz, Spain	201-500	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, 2026
25	Proximity EspañaPartial evidence	Barcelona, Spain	51-200	57
	“Proximity es la agencia que ofrece soluciones integradas en marketing y comunicación para la edad digital.” Source: company website · checked Sep 3, 2026

Showing 25 of 8,335 full service marketing agencies based in Spain

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Full service marketing agencies based in Spain at a glance

As of Sep 3, 2026

1-10Median size (employees)

MadridLargest hub · 1995 HQs

1,688Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

6,740

11-50

1,386

51-200

132

201-500

501-1,000

1,001-5,000

10001+

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 marketing 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 marketing 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 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 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, 6,031 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 marketing agencies by metro

Full service marketing agencies in Madrid1995
Full service marketing agencies in Barcelona1366
Full service marketing agencies in Valencia354
Full service marketing agencies in Malaga194
Full service marketing agencies in Sevilla169
Full service marketing agencies in Bilbao123
Full service marketing agencies in Alicante116

Frequently asked

How many full service marketing agencies are there based in Spain?

RevenueBase identified 8,335 full service 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?

IPG Mediabrands, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most full service marketing agencies?

Madrid leads with 1995 headquartered companies, followed by Barcelona (1366) and Valencia (354).

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 6,031 verified decision-maker contacts tracked across these 8,335 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.