Company lists · Data refreshed November 2026

Top 23 Ad tech agencies based in Spain

RevenueBase identified 410 company matches for ad tech agencies associated with Spain as of November 2026 and tracks 5,203 professional contacts across them, including 1,376 with verified work emails. Madrid is the largest hub.

This list covers company matches for ad tech agencies associated with Spain, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
410Companies
5,203Contacts tracked
1,376Verified emails
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The 23 largest ad tech agencies based in Spain

Ranked by team size
Top 23 of 410 company matches for ad tech agencies based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBarcelona, SpainHQ recorded Nov 6, 2026501-1,000296 contacts →

Exact match

“Smadex is a Mobile Growth Platform that powers performance, direct response, and brand advertising campaigns across in-app, CTV, and mobile web.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMadrid, SpainHQ recorded Nov 6, 2026201-500279 contacts →

Exact match

“Building impactful technology solutions - EXTE was created by three of Europe’s largest AdTech companies-SunMedia- The largest adtech in Spain and Latin America.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMadrid, SpainHQ recorded Nov 6, 202651-200264 contacts →

Exact match

“Kimia is an online marketing technology group providing innovative solutions across the digital marketing ecosystem.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBarcelona, SpainHQ recorded Nov 6, 202651-200135 contacts →

Exact match

“No generamos contenido para llenar un calendario.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Nov 6, 2026201-500126 contacts →

Exact match

“Vidoomy is a company focused on Video advertising.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBarcelona, SpainHQ recorded Nov 6, 202651-200108 contacts →

Exact match

“About ExoClick As part of EXOGROUP, ExoClick was founded by current CEO Benjamin Fonzé in 2006 and based in Barcelona, Spain.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Nov 6, 202651-200102 contacts →

Exact match

“Zenith es The ROI Agency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchPozuelo De Alarcón, SpainHQ recorded Nov 6, 2026201-50094 contacts →

Exact match

“Adglow collaborates with advertisers and agencies around the world to upscale their social advertising campaigns.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20092 contacts →

Exact match

“Antevenio es una empresa que opera en el sector de la publicidad y el marketing online.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20089 contacts →

Exact match

“mediasmart is an omnichannel programmatic advertising platform trusted by leading advertisers, agencies and trading desks globally.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBarcelona, SpainHQ recorded Nov 6, 202651-20059 contacts →

Exact match

“DoubleYou is a communication company aimed at the creation and development of projects and campaigns in the current framework, shaped by media digitalization.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBarcelona, SpainHQ recorded Nov 6, 202651-20058 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5055 contacts →

Exact match

“Dentsu X, la agencia de mejor performance del mercado, conecta a través de los medios, los contenidos, los datos y la tecnología.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5043 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBarcelona, SpainHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“Optima is an advertising technology company providing revenue optimization and predictability to publishers of all sizes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5038 contacts →

Exact match

“Media ADgo is an Online Marketing agency specialized in providing Digital Marketing Solutions 360 for our advertisers and publishers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“We’re building more than just tools → we’re building a space for marketers who care about data, creativity, and doing things differently Birch helps ambitious marketing teams…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“At Adkomo, we specialize in mobile advertising and lead generation, helping businesses thrive in the fast-paced world of digital advertising.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBarcelona, SpainHQ recorded Nov 6, 2026201-50036 contacts →

Exact match

“EXOGROUP is a set of companies offering a range of services within the digital business landscape.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchPozuelo De Alarcón, SpainHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“Plan Better.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“Nuestro Objetivo como agencia de publicidad online es potenciar el negocio de nuestros clientes mediante la implementación de estrategias de marketing online para alcanzar sus…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Online Marketing Agency leader in the management and optimization of SEM campaigns.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLas Rozas De Madrid, SpainHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Facing the new reality of E-commerce for both Publishers and Advertisers, We at Widitrade brings you the platform with all the technology to provide you solutions:*Publishers…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 23 of 410 ad tech agencies based in Spain

See the full list, filter by size, metro and specialty, and access 1,376 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ad tech agencies based in Spain at a glance

As of Nov 6, 2026
26.4%Verified-email coverage
12.7Average contacts per company
1-10Median size (employees)
39.3%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
249
11-50
123
51-200
24
201-500
11
501-1,000
2

Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 410 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Spain whose business descriptions match “ad tech agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,376 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “ad tech agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ad tech agencies are there based in Spain?

RevenueBase identified 410 company matches for ad tech agencies associated with Spain as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Smadex tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most ad tech agencies?

Madrid leads with 161 company records, followed by Barcelona (98) and Valencia (9).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,376 professional contacts with verified work emails tracked across these 410 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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.