Company lists · Data refreshed September 2026

Top 25 Media buying platforms based in Spain

Name: Media buying platforms based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 1,174 companies tracked

RevenueBase identified 1,174 media buying platforms headquartered in Spain as of September 2026 and tracks 7,397 professional contacts across them, including 1,138 with verified work emails and 185 with mobile numbers. Madrid is the largest hub.

This list covers media buying platforms 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

1,174Companies

7,397Contacts tracked

1,138Verified emails

185Mobile numbers

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The 25 largest media buying platforms based in Spain

Ranked by team size

Top 25 of 1,174 media buying platforms based in Spain, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names media buying platforms: 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	SmadexPartial evidence	Barcelona, SpainHQ checked Sep 5, 2026	501-1,000	236
	“Smadex is a Mobile Growth Platform that powers performance, direct response, and brand advertising campaigns across in-app, CTV, and mobile web.” Source: company website · checked Sep 5, 2026
2	HMGIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	51-200	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, 2026
3	Havas DigitalPartial evidence	Madrid, SpainHQ checked Sep 5, 2026	1,001-5,000	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, 2026
4	AdglowIndirect evidence	Pozuelo De Alarcón, SpainHQ checked Sep 5, 2026	201-500	100
	“Adglow collaborates with advertisers and agencies around the world to upscale their social advertising campaigns.” Source: company website · checked Sep 5, 2026
5	ArkeeroIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	51-200	96
	“Arkeero is a Digital Marketing company, specialized in performance marketing.” Source: company website · checked Sep 5, 2026
6	IrismediaIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	11-50	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, 2026
7	AntevenioIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	51-200	77
	“Antevenio es una empresa que opera en el sector de la publicidad y el marketing online.” Source: company website · checked Sep 5, 2026
8	ImaginaIndirect evidence	Barcelona, SpainHQ checked Sep 5, 2026	11-50	77
	“Somos IMAGINA, la Agencia experta en Marketing Digital y Redes Sociales.” Source: company website · checked Sep 5, 2026
9	MediasmartPartial evidence	Madrid, SpainHQ checked Sep 5, 2026	51-200	76
	“mediasmart is an omnichannel programmatic advertising platform trusted by leading advertisers, agencies and trading desks globally.” Source: company website · checked Sep 5, 2026
10	Godó StrategiesIndirect evidence	Barcelona, SpainHQ checked Sep 5, 2026	51-200	69
	“Godó Strategies ofrece soluciones 360° en una amplia cartera de clientes.” Source: company website · checked Sep 5, 2026
11	DoubleyouPartial evidence	Barcelona, SpainHQ checked Sep 5, 2026	51-200	58
	“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 5, 2026
12	Tappx With TechsoulogyPartial evidence	Barcelona, SpainHQ checked Sep 5, 2026	51-200	57
	“Tappx is a fast-growth AdTech company that delivers state-of-the-art digital advertising solutions for multiple platforms including mobile, OTT/CTV and desktop.” Source: company website · checked Sep 5, 2026
13	Viva ConversionIndirect evidence	Valencia Valencia, SpainHQ checked Sep 5, 2026	11-50	55
	“Necesitas mejorar el rendimiento de tu negocio online?” Source: company website · checked Sep 5, 2026
14	Limón PublicidadIndirect evidence	Granada, SpainHQ checked Sep 5, 2026	11-50	52
	“Agencia de publicidad de servicios plenos.” Source: company website · checked Sep 5, 2026
15	Mindshare SpainIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	51-200	49
	“Somos Mindshare.” Source: company website · checked Sep 5, 2026
16	ZenithbrPartial evidence	Valencia, SpainHQ checked Sep 5, 2026	11-50	46
	“Zenithbr is the leading media agency in its area of influence, owned by the multinational Zenith, The ROI Agency, part of the Publicis Group.” Source: company website · checked Sep 5, 2026
17	GeotelecomIndirect evidence	Burgos, SpainHQ checked Sep 5, 2026	51-200	40
	“Hola!” Source: company website · checked Sep 5, 2026
18	UpartnermediaPartial evidence	Alcobendas, SpainHQ checked Sep 5, 2026	51-200	40
	“UPartner Media defies the traditional media agency model with al full fledged service commitment, result driven and customer integrated on/off offer.” Source: company website · checked Sep 5, 2026
19	KeyweoIndirect evidence	Barcelona, SpainHQ checked Sep 5, 2026	11-50	38
	“Keyweo is a digital marketing agency founded in 2018 and based in Barcelona.” Source: company website · checked Sep 5, 2026
20	Esparta DigitalIndirect evidence	Valencia/valència, SpainHQ checked Sep 5, 2026	11-50	38
	“En Esparta Digital transformamos el potencial de las marcas en progreso real y medible.” Source: company website · checked Sep 5, 2026
21	SemmánticaIndirect evidence	Zaragoza, SpainHQ checked Sep 5, 2026	51-200	35
	“Semmántica es una agencia especializada en acelerar el crecimiento digital de empresas.” Source: company website · checked Sep 5, 2026
22	Digital GroupPartial evidence	Madrid, SpainHQ checked Sep 5, 2026	51-200	35
	“We are a specialized multi-channel Digital Marketing and Media Agency.” Source: company website · checked Sep 5, 2026
23	CRECEIndirect evidence	Barcelona, SpainHQ checked Sep 5, 2026	11-50	34
	“Somos una agencia de publicidad digital que entiende que el éxito de las marcas no solo está en el corto plazo, por eso unimos efectividad y creatividad para que tu negocio crezca…” Source: company website · checked Sep 5, 2026
24	Illumin EU & LatamIndirect evidence	Barcelona, SpainHQ checked Sep 5, 2026	201-500	32
	“EU & LATAM Profile).” Source: company website · checked Sep 5, 2026
25	HispavistaIndirect evidence	Donostia / San Sebastián, SpainHQ checked Sep 5, 2026	51-200	32
	“Hispavista is a company in the Internet sector with more than 20 years of experience in the online world, present in Spain, London, Chile, Mexico, Colombia and Miami, which has…” Source: company website · checked Sep 5, 2026

Showing 25 of 1,174 media buying platforms based in Spain

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Media buying platforms based in Spain at a glance

As of Sep 5, 2026

1-10Median size (employees)

MadridLargest hub · 321 HQs

185Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

923

11-50

208

51-200

201-500

501-1,000

1,001-5,000

Verified emails by last verification

0–30

1,069

31–60

61–90

90–180

180+

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 buying platforms, 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 buying platforms”. 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 buying platforms, 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, 1,138 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 buying platforms by metro

Frequently asked

How many media buying platforms are there based in Spain?

RevenueBase identified 1,174 media buying platforms 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?

Smadex, headquartered in Barcelona, tops this list with the largest team on record.

Which city has the most media buying platforms?

Madrid leads with 321 headquartered companies, followed by Barcelona (193) and Valencia (44).

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 1,138 verified decision-maker contacts tracked across these 1,174 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.