Company lists · Data verified 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 Verified Aug 28, 2026 83 companies tracked

There are 83 ad tech software companies headquartered in Madrid, Spain (RevenueBase, August 2026). RevenueBase 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. Data current as of August 28, 2026.

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 verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Adsmurai	Madrid	201-500	451	145
2	EXTE	Madrid	201-500	261	109
3	Kimia Group	Madrid	51-200	260	16
4	Vidoomy	Madrid	201-500	112	33
5	Havas Digital	Madrid	1,001-5,000	101	3
6	Arkeero	Madrid	51-200	95	33
7	Mediasmart	Madrid	51-200	77	32
8	Refinery89	Madrid	51-200	71	42
9	Evolution Group	Madrid	51-200	51	23
10	Illumin EU & Latam	Madrid	201-500	33	8
11	Setupad	Madrid	51-200	29	18
12	CAVAI	Madrid	11-50	26	13
13	INLAB	Madrid	11-50	24	10
14	Appcelerate	Madrid	11-50	24	2
15	biddeo.io	Madrid	11-50	19	5
16	Tradedoubler España & Latam	Madrid	501-1,000	17	10
17	Embi Media	Madrid	11-50	17	9
18	Brain360	Madrid	11-50	17	2
19	Much Media	Madrid	1-10	13	4
20	Adport	Madrid	11-50	12	4
21	Ascendmakers	Madrid	11-50	12	2
22	E-Retail Advertising	Madrid	11-50	11	2
23	Targetopia	Madrid	11-50	11	1
24	Antipodes	Madrid	11-50	9	1
25	Monkeyflux	Madrid	11-50	8	4

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 28, 2026

11-50Median size (employees)

MadridLargest hub · 83 HQs

60Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Ad tech software companies by metro in Spain

Metro	Companies
Ad tech software companies in Madrid	83
Ad tech software companies in Barcelona	44
Ad tech software companies in Marbella	3
Ad tech software companies in Malaga	2
Ad tech software companies in Santa Cruz De Tenerife	2
Ad tech software companies in Vitoria-Gasteiz	2
Ad tech software companies in Pozuelo De Alarcon	2

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “ad tech software companies”, with match quality audited by blind human judging, and headquartered in Madrid, Spain.
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: Contact records re-verify on a rolling cadence; 4 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many ad tech software companies are there based in Madrid, Spain?

There are 83 ad tech software companies headquartered in Madrid, Spain as of August 2026 (RevenueBase).

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 is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.