Company lists · Data verified August 2026

Top 15 AI cybersecurity companies based in Madrid, Spain

Name: AI cybersecurity 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 50 companies tracked

There are 50 AI cybersecurity companies headquartered in Madrid, Spain (RevenueBase, August 2026). RevenueBase tracks 1,024 professional contacts across them, including 188 with verified work emails and 13 with mobile numbers. Madrid is the largest hub.

This list covers AI cybersecurity 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.

50Companies

1,024Contacts tracked

188Verified emails

13Mobile numbers

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The 15 largest AI cybersecurity companies based in Madrid, Spain

Ranked by team size

Top 15 of 50 AI cybersecurity 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	Alhambra IT	Madrid	201-500	228	26
2	S21sec	Madrid	201-500	192	36
3	YARIX	Madrid	201-500	131	67
4	A3sec	Madrid	51-200	122	24
5	Innotec Security	Madrid	501-1,000	105	14
6	Zepo Intelligence	Madrid	11-50	39	3
7	Muttii Technologies	Madrid	51-200	26	1
8	Enthec	Madrid	11-50	20	4
9	Tecnek Ciberseguridad	Madrid	11-50	20	3
10	Areani	Madrid	11-50	9	3
11	Sophos Iberia	Madrid	11-50	8	1
12	Byron Labs	Madrid	1-10	7	2
13	Sumwall Technology	Madrid	1-10	7	1
14	AO Data Cloud	Madrid	11-50	4	1
15	Havenio	Madrid	1-10	2	2

Showing 15 of 50 AI cybersecurity companies based in Madrid, Spain

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AI cybersecurity companies based in Madrid, Spain at a glance

As of Aug 28, 2026

1-10Median size (employees)

MadridLargest hub · 50 HQs

13Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

AI cybersecurity companies by metro in Spain

Metro	Companies
AI cybersecurity companies in Madrid	50
AI cybersecurity companies in Barcelona	30
AI cybersecurity companies in Malaga	10
AI cybersecurity companies in Sevilla	4
AI cybersecurity companies in San Sebastian	3
AI cybersecurity companies in Pozuelo De Alarcon	3
AI cybersecurity companies in Alcobendas	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 “AI cybersecurity 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; 0 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 AI cybersecurity companies are there based in Madrid, Spain?

There are 50 AI cybersecurity companies headquartered in Madrid, Spain as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most AI cybersecurity companies?

Madrid leads with 50 headquartered companies, followed by Barcelona (30) and Malaga (10).

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 188 verified decision-maker contacts tracked across these 50 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.