Company lists · Data verified August 2026

Top 17 Cloud threat detection companies based in Spain

Name: Cloud threat detection companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 44 companies tracked

There are 44 cloud threat detection companies headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 1,001 professional contacts across them, including 159 with verified work emails and 9 with mobile numbers. Madrid is the largest hub.

This list covers cloud threat detection companies headquartered in 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.

44Companies

1,001Contacts tracked

159Verified emails

9Mobile numbers

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The 17 largest cloud threat detection companies based in Spain

Ranked by team size

Top 17 of 44 cloud threat detection companies based in 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	A3sec	Madrid	51-200	122	24
4	Innotec Security	Madrid	501-1,000	105	14
5	Aiuken Cybersecurity	Boadilla Del Monte	51-200	104	21
6	Apolo Cybersecurity	Barcelona	11-50	37	5
7	Redborder	Zamudio	11-50	21	5
8	Geserisk Centro DE Gestión DE LA Seguridad Y EL Riesgo Cibernético	Bormujos	11-50	16	4
9	cloud.gal	Santiago De Compostela	11-50	12	3
10	overe.io	Barcelona	11-50	11	6
11	Alpine Security	Madrid	1-10	11	5
12	Brontobyte Cloud	Olot	11-50	11	1
13	Synergial Cybersecurity	Olesa De Montserrat	11-50	8	4
14	Sophos Iberia	Madrid	11-50	8	1
15	Cibersare	Barakaldo	1-10	8	1
16	AO Data Cloud	Madrid	11-50	4	1
17	Alisec Soluciones S.L	Llanera	1-10	2	2

Showing 17 of 44 cloud threat detection companies based in Spain

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Cloud threat detection companies based in Spain at a glance

As of Aug 28, 2026

11-50Median size (employees)

MadridLargest hub · 15 HQs

9Contacts with mobile numbers

1Emails 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

Cloud threat detection companies by metro

Metro	Companies
Cloud threat detection companies in Madrid	15
Cloud threat detection companies in Barcelona	6
Cloud threat detection companies in Ourense	1
Cloud threat detection companies in Valencia	1
Cloud threat detection companies in Bormujos	1
Cloud threat detection companies in Pamplona	1
Cloud threat detection companies in Llanera	1

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 “cloud threat detection companies”, with match quality audited by blind human judging, and headquartered in 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; 1 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 cloud threat detection companies are there based in Spain?

There are 44 cloud threat detection companies headquartered in 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 cloud threat detection companies?

Madrid leads with 15 headquartered companies, followed by Barcelona (6) and Ourense (1).

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 159 verified decision-maker contacts tracked across these 44 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.