Company lists · Data refreshed September 2026
Top 24 Ad exchanges based in Spain
RevenueBase identified 95 ad exchanges headquartered in Spain as of September 2026 and tracks 1,518 professional contacts across them, including 409 with verified work emails. Madrid is the largest hub.
This list covers ad exchanges 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 ad exchanges based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 236 contacts → | ||||
Indirect evidence “Smadex is a Mobile Growth Platform that powers performance, direct response, and brand advertising campaigns across in-app, CTV, and mobile web.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 109 contacts → | ||||
Indirect evidence “Vidoomy is a company focused on Video advertising.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 106 contacts → | ||||
Indirect evidence “About ExoClick As part of EXOGROUP, ExoClick was founded by current CEO Benjamin Fonzé in 2006 and based in Barcelona, Spain.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 76 contacts → | ||||
Indirect evidence “mediasmart is an omnichannel programmatic advertising platform trusted by leading advertisers, agencies and trading desks globally.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 57 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 35 contacts → | ||||
Indirect evidence “EXOGROUP is a set of companies offering a range of services within the digital business landscape.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 32 contacts → | ||||
Indirect evidence “EU & LATAM Profile).” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 29 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 28 contacts → | ||||
Indirect evidence “Optima is an advertising technology company providing revenue optimization and predictability to publishers of all sizes.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 27 contacts → | ||||
Indirect evidence “Maverick Media was founded as a leading programmatic advertising company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 26 contacts → | ||||
Indirect evidence “TwinRed is a leading service provider in the digital advertising sector, offering both self-service and openRTB capabilities to its clients.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 25 contacts → | ||||
Indirect evidence “Trading Media es una central de medios de publicidad, dedicada al intercambio, sistema a través del cual provee publicidad en medios masivos (tv, prensa, revistas, exterior…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 24 contacts → | ||||
Partial evidence “Big Data AdTech Full Ad stack solutions Programmatic Advertising Cookieless native Geocontextualised Audiences Own Data Lake Omnichannel Digital campaign activation platform…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 19 contacts → | ||||
Indirect evidence “At Linkadia, we help brands, apps, and digital businesses scale through data-driven User Acquisition, monetization, and performance marketing solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 18 contacts → | ||||
Indirect evidence “We provide reliable, accurate and consistent digital advertising benchmarking data.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 17 contacts → | ||||
Indirect evidence “Potenciamos una próspera red de partners en la que todos ganan.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 17 contacts → | ||||
Partial evidence “En Brain Agency 360, garantizamos la rentabilidad de tus campañas publicitarias a través de nuestro modelo único basado en ROAS (Return on Ad Spend).” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 16 contacts → | ||||
Partial evidence “With headquarters in Barcelona, Billy Mobile is the leading affiliate platform operating exclusively in the mobile arena of the ad tech industry.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 12 contacts → | ||||
Indirect evidence “Compañía AdTech especializada en monetización y optimización publicitaria para publishers digitales, con foco en rendimiento, eficiencia programática y sostenibilidad del negocio.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11 contacts → | ||||
Indirect evidence “e-retail advertising es una red de publicidad online especializada en la gestión en exclusiva de páginas de comercio electrónico y distribución.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 11 contacts → | ||||
Indirect evidence “Trading Desk specialized in offering an integral service (strategy, technology, implementation, activation and optimization of campaigns) over Real Time Bidding (RTB).” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 10 contacts → | ||||
Indirect evidence “If you want different results do not always do the same” @Albert Einstein adoclic is a Technology Media Company, we are an affiliate network for Adnetworks, Media Buyers and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 10 contacts → | ||||
Indirect evidence “Compañía de Marketing Automation con tecnología propia para optimizar las campañas de display y video a través de algoritmos personalizados como innovación al modelo programático…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 8 contacts → | ||||
Indirect evidence “BeApolo es una plataforma de compra de espacios en nuevos canales digitales.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: ad exchanges. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names ad exchanges.
- Partial evidence
- Its own public description names part of ad exchanges, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name ad exchanges. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 24 of 95 ad exchanges based in Spain
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Ad exchanges based in Spain at a glance
As of Sep 19, 2026Companies by employee count
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 95 companies.
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 ad exchanges, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Spain whose own description of what they do matches “ad exchanges”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names ad exchanges), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among ad exchanges, 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 its RevenueBase Smart Search 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, 409 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 19, 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.
Ad exchanges by metro
- Ad exchanges in Madrid48
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names ad exchanges, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many ad exchanges are there based in Spain?
RevenueBase identified 95 ad exchanges 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 ad exchanges?
Madrid leads with 48 headquartered companies, followed by Barcelona (24) and Valencia (3).
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 409 verified decision-maker contacts tracked across these 95 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 19, 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 Smart Search, 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.