Company lists · Data refreshed September 2026

Top 25 Demand side platform agencies based in Spain

Name: Demand side platform agencies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 213 companies tracked

RevenueBase identified 213 demand side platform agencies headquartered in Spain as of September 2026 and tracks 2,602 professional contacts across them, including 590 with verified work emails and 62 with mobile numbers. Madrid is the largest hub.

This list covers demand side platform 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 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 Sep 1, 2026 86% judged on-target in blind review

213Companies

2,602Contacts tracked

590Verified emails

62Mobile numbers

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The 25 largest demand side platform agencies based in Spain

Ranked by team size

Top 25 of 213 demand side platform agencies based in Spain, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to demand side platform agencies: 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	Indirect evidence	Madrid, Spain	201-500	451 contacts →
	Indirect evidence “Adsmurai is a Growth-Tech Partner that helps brands transform marketing into a connected, measurable, and scalable growth system.” Source: RevenueBase Database · checked Sep 1, 2026
2	Vidoomy	Indirect evidence	Madrid, Spain	201-500	112 contacts →
	Indirect evidence “Vidoomy is a company focused on Video advertising.” Source: RevenueBase Database · checked Sep 1, 2026
3	Exoclick	Indirect evidence	Barcelona, Spain	51-200	107 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 1, 2026
4	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 Sep 1, 2026
5	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 Sep 1, 2026
6	Mediasmart	Partial evidence	Madrid, Spain	51-200	77 contacts →
	Partial evidence “mediasmart is an omnichannel programmatic advertising platform trusted by leading advertisers, agencies and trading desks globally.” Source: RevenueBase Database · checked Sep 1, 2026
7	Antevenio	Indirect evidence	Barcelona, Spain	51-200	77 contacts →
	Indirect evidence “Antevenio es una empresa que opera en el sector de la publicidad y el marketing online.” Source: RevenueBase Database · checked Sep 1, 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 Sep 1, 2026
9	Doubleyou	Indirect evidence	Barcelona, Spain	51-200	57 contacts →
	Indirect evidence “DoubleYou is a communication company aimed at the creation and development of projects and campaigns in the current framework, shaped by media digitalization.” Source: RevenueBase Database · checked Sep 1, 2026
10	Tappx With Techsoulogy	Partial evidence	Barcelona, Spain	51-200	56 contacts →
	Partial 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 1, 2026
11	Opti Digital	Partial evidence	Barcelona, Spain	11-50	40 contacts →
	Partial evidence “The Opti Digital platform is an ad technology product suite offering digital media publishers and sales houses everything they need to maximize their ad revenue and reduce…” Source: RevenueBase Database · checked Sep 1, 2026
12	Illumin EU & Latam	Indirect evidence	Madrid, Spain	201-500	33 contacts →
	Indirect evidence “EU & LATAM Profile).” Source: RevenueBase Database · checked Sep 1, 2026
13	Media Adgo	Indirect evidence	Barcelona, Spain	11-50	32 contacts →
	Indirect evidence “Media ADgo is an Online Marketing agency specialized in providing Digital Marketing Solutions 360 for our advertisers and publishers.” Source: RevenueBase Database · checked Sep 1, 2026
14	Jevnet	Indirect evidence	Barcelona, Spain	11-50	30 contacts →
	Indirect evidence “Online Marketing Agency leader in the management and optimization of SEM campaigns.” Source: RevenueBase Database · checked Sep 1, 2026
15	Widitrade	Partial evidence	Las Rozas De Madrid, Spain	11-50	29 contacts →
	Partial 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 1, 2026
16	Twinred	Indirect evidence	Barcelona, Spain	11-50	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 1, 2026
17	CAVAI	Partial evidence	Madrid, Spain	11-50	26 contacts →
	Partial 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 Sep 1, 2026
18	INLAB	Partial evidence	Madrid, Spain	11-50	24 contacts →
	Partial evidence “AdTech SaaS Platform \| Big Data \| Machine Learning” Source: RevenueBase Database · checked Sep 1, 2026
19	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 Sep 1, 2026
20	Embi Media	Indirect evidence	Madrid, Spain	11-50	17 contacts →
	Indirect evidence “Embi es una empresa AdTech.” Source: RevenueBase Database · checked Sep 1, 2026
21	Brain360	Indirect evidence	Madrid, Spain	11-50	17 contacts →
	Indirect 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 1, 2026
22	Astrad	Partial evidence	Barcelona, Spain	11-50	15 contacts →
	Partial evidence “ASTRAD is a multi-channel programmatic technology DSP – DMP platform serving advertisers worldwide.” Source: RevenueBase Database · checked Sep 1, 2026
23	Digital Green	Indirect evidence	Huesca, Spain	11-50	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 1, 2026
24	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 Sep 1, 2026
25	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 Sep 1, 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: demand side platform agencies. 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 demand side platform agencies.
Partial evidence: Its own public description names part of demand side platform agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name demand side platform agencies. 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 213 demand side platform agencies based in Spain

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Demand side platform agencies based in Spain at a glance

As of Sep 1, 2026

22.7%Verified-email coverage

2.4%Mobile-number coverage

12.2Average contacts per company

1-10Median size (employees)

42.7%Largest-city concentration · Madrid

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

123

11-50

51-200

201-500

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 demand side platform agencies, 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 “demand side platform agencies”. 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 demand side platform agencies), 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 demand side platform 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 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, 590 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 1, 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.

Demand side platform agencies by metro

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 demand side platform agencies, 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 demand side platform agencies are there based in Spain?

RevenueBase identified 213 demand side platform 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?

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

Which city has the most demand side platform agencies?

Madrid leads with 91 headquartered companies, followed by Barcelona (49) and Valencia (9).

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 590 verified decision-maker contacts tracked across these 213 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 1, 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.