Company lists · Data refreshed August 2026

Top 25 Ad tech software companies based in Madrid, Spain

Name: Ad tech software companies based in Madrid, Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 30, 2026 83 companies tracked

RevenueBase identified 83 ad tech software companies headquartered in Madrid, Spain as of August 2026 and tracks 2,177 professional contacts across them, including 563 with verified work emails and 60 with mobile numbers. Madrid is the largest hub.

This list covers ad tech software companies headquartered in Madrid, 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 August 30, 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.

How to read this list RevenueBase Smart Search rating on every row Refreshed Aug 30, 2026 86% judged on-target in blind review

83Companies

2,177Contacts tracked

563Verified emails

60Mobile numbers

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The 25 largest ad tech software companies based in Madrid, Spain

Ranked by team size

Top 25 of 83 ad tech software companies based in Madrid, Spain, ranked by team size, largest first. Data refreshed Aug 30, 2026. RevenueBase Smart Search rates how each company's information relates to ad tech software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Adsmurai	Partial evidence	Madrid, Spain	201-500	451 contacts →
	Partial evidence “Adsmurai is a Growth-Tech Partner that helps brands transform marketing into a connected, measurable, and scalable growth system.” Source: RevenueBase Database · checked Aug 30, 2026
2	EXTE	Indirect evidence	Madrid, Spain	201-500	261 contacts →
	Indirect evidence “Building impactful technology solutions - EXTE was created by three of Europe’s largest AdTech companies-SunMedia- The largest adtech in Spain and Latin America.” Source: RevenueBase Database · checked Aug 30, 2026
3	Kimia Group	Indirect evidence	Madrid, Spain	51-200	260 contacts →
	Indirect evidence “Kimia is an online marketing technology group providing innovative solutions across the digital marketing ecosystem.” Source: RevenueBase Database · checked Aug 30, 2026
4	Vidoomy	Indirect evidence	Madrid, Spain	201-500	112 contacts →
	Indirect evidence “Vidoomy is a company focused on Video advertising.” Source: RevenueBase Database · checked Aug 30, 2026
5	Havas Digital	Indirect evidence	Madrid, Spain	1,001-5,000	101 contacts →
	Indirect evidence “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: RevenueBase Database · checked Aug 30, 2026
6	Arkeero	Indirect evidence	Madrid, Spain	51-200	95 contacts →
	Indirect evidence “Arkeero is a Digital Marketing company, specialized in performance marketing.” Source: RevenueBase Database · checked Aug 30, 2026
7	Mediasmart	Indirect evidence	Madrid, Spain	51-200	77 contacts →
	Indirect evidence “mediasmart is an omnichannel programmatic advertising platform trusted by leading advertisers, agencies and trading desks globally.” Source: RevenueBase Database · checked Aug 30, 2026
8	Refinery89	Indirect evidence	Madrid, Spain	51-200	71 contacts →
	Indirect evidence “Refinery89 is a Google Certified Publishing Partner and member of IAB Europe's Transparency and Consent Framework driven to revolutionize AdTech.” Source: RevenueBase Database · checked Aug 30, 2026
9	Evolution Group	Indirect evidence	Madrid, Spain	51-200	51 contacts →
	Indirect evidence “About us We are the one and only, one-stop shop for online publishers.” Source: RevenueBase Database · checked Aug 30, 2026
10	Illumin EU & Latam	Indirect evidence	Madrid, Spain	201-500	33 contacts →
	Indirect evidence “EU & LATAM Profile).” Source: RevenueBase Database · checked Aug 30, 2026
11	Setupad	Partial evidence	Madrid, Spain	51-200	29 contacts →
	Partial evidence “Setupad is an ad optimization platform and a Google Certified Publishing Partner (GCPP).” Source: RevenueBase Database · checked Aug 30, 2026
12	CAVAI	Indirect evidence	Madrid, Spain	11-50	26 contacts →
	Indirect evidence “Cavai is an award-winning global Interactive Advertising Cloud that works with agencies, publishers, advertisers and other technology platforms across ten markets and three…” Source: RevenueBase Database · checked Aug 30, 2026
13	INLAB	Indirect evidence	Madrid, Spain	11-50	24 contacts →
	Indirect evidence “AdTech SaaS Platform \| Big Data \| Machine Learning” Source: RevenueBase Database · checked Aug 30, 2026
14	Appcelerate	Partial evidence	Madrid, Spain	11-50	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 Aug 30, 2026
15	biddeo.io	Indirect evidence	Madrid, Spain	11-50	19 contacts →
	Indirect evidence “Biddeo.io is a fully managed, AI-powered video advertising platform built for brands and agencies that want real results, not just impressions.” Source: RevenueBase Database · checked Aug 30, 2026
16	Tradedoubler España & Latam	Indirect evidence	Madrid, Spain	501-1,000	17 contacts →
	Indirect evidence “Potenciamos una próspera red de partners en la que todos ganan.” Source: RevenueBase Database · checked Aug 30, 2026
17	Embi Media	Indirect evidence	Madrid, Spain	11-50	17 contacts →
	Indirect evidence “Embi es una empresa AdTech.” Source: RevenueBase Database · checked Aug 30, 2026
18	Brain360	Partial evidence	Madrid, Spain	11-50	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 Aug 30, 2026
19	Much Media	Indirect evidence	Madrid, Spain	1-10	13 contacts →
	Indirect evidence “En Much Media, nuestro enfoque es claro: maximizar el rendimiento de la inversión publicitaria para transformarla en crecimiento de negocio.” Source: RevenueBase Database · checked Aug 30, 2026
20	Adport	Indirect evidence	Madrid, Spain	11-50	12 contacts →
	Indirect evidence “Somos una agencia encargada del ciclo integral de campañas, desde la planificación estratégica hasta la optimización en tiempo real.” Source: RevenueBase Database · checked Aug 30, 2026
21	Ascendmakers	Indirect evidence	Madrid, Spain	11-50	12 contacts →
	Indirect evidence “Ascend Retail es la plataforma SaaS de Ascend Makers que automatiza la conexión entre la inteligencia comercial, las audiencias y los canales publicitarios para incrementar el…” Source: RevenueBase Database · checked Aug 30, 2026
22	E-Retail Advertising	Indirect evidence	Madrid, Spain	11-50	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 Aug 30, 2026
23	Targetopia	Indirect evidence	Madrid, Spain	11-50	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 Aug 30, 2026
24	Antipodes	Indirect evidence	Madrid, Spain	11-50	9 contacts →
	Indirect evidence “Antipodes is a data-driven agency built to simplify programmatic advertising.” Source: RevenueBase Database · checked Aug 30, 2026
25	Monkeyflux	Indirect evidence	Madrid, Spain	11-50	8 contacts →
	Indirect evidence “At Monkeyflux, we are at the forefront of technological innovation, specializing in cutting-edge solutions designed to automate the management of key digital advertising…” Source: RevenueBase Database · checked Aug 30, 2026

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 tech software companies. 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 tech software companies.
Partial evidence: Its own public description names part of ad tech software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ad tech software companies. 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 25 of 83 ad tech software companies based in Madrid, Spain

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Ad tech software companies based in Madrid, Spain at a glance

As of Aug 30, 2026

25.9%Verified-email coverage

2.8%Mobile-number coverage

26.2Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Madrid

Aug 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 tech software companies, 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 Madrid, Spain whose own description of what they do matches “ad tech software companies”. 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 tech software companies), 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 tech software companies, and records with no verified work email. Companies headquartered outside Madrid 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, 563 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 August 30, 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 tech software companies by metro in Spain

Ad tech software companies in Madrid83
Ad tech software companies in Barcelona44

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 tech software companies, 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 tech software companies are there based in Madrid, Spain?

RevenueBase identified 83 ad tech software companies headquartered in Madrid, Spain as of August 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?

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

Which city has the most ad tech software companies?

Madrid leads with 83 headquartered companies, followed by Barcelona (44) and Marbella (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 563 verified decision-maker contacts tracked across these 83 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 30, 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.