Company lists · Data verified August 2026

Top 25 Cybersecurity and defense software companies based in Spain

Name: Cybersecurity and defense software companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 148 companies tracked

There are 148 cybersecurity and defense software companies headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 4,136 professional contacts across them, including 697 with verified work emails and 57 with mobile numbers. Madrid is the largest hub.

This list covers cybersecurity and defense software 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.

148Companies

4,136Contacts tracked

697Verified emails

57Mobile numbers

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The 25 largest cybersecurity and defense software companies based in Spain

Ranked by team size

Top 25 of 148 cybersecurity and defense software 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	SIA Group	Alcobendas	1,001-5,000	704	31
2	Advens	Barcelona	501-1,000	588	314
3	Panda Security	Bilbao	501-1,000	329	22
4	Alhambra IT	Madrid	201-500	228	26
5	S21sec	Madrid	201-500	192	36
6	A3sec	Madrid	51-200	122	24
7	Tarlogic	n/a	51-200	122	21
8	A2secure	Madrid	51-200	115	24
9	Wise Security Global	Barcelona	51-200	107	18
10	Innotec Security	Madrid	501-1,000	105	14
11	Hispasec	Malaga	51-200	68	11
12	Bedisruptive	Madrid	51-200	54	26
13	Dagram	Sant Adria De Besos	11-50	53	9
14	Zepo Intelligence	Madrid	11-50	39	3
15	Apolo Cybersecurity	Barcelona	11-50	37	5
16	Madcoms Networks	Barcelona	11-50	32	13
17	Alias Robotics	Vitoria	11-50	31	12
18	Proselec Seguridad S.A.U	Madrid	51-200	26	5
19	Muttii Technologies	Madrid	51-200	26	1
20	Minery Report	Madrid	11-50	24	2
21	Hard2bit Cybersecurity	Leganes	11-50	21	2
22	Outpost24 Spain Ex-Blueliv	Barcelona	51-200	20	4
23	Enthec	Madrid	11-50	20	4
24	Beonesec Cybersecurity	Sevilla	11-50	20	3
25	Blackdice Cyber	Malaga	11-50	17	1

Showing 25 of 148 cybersecurity and defense software companies based in Spain

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Cybersecurity and defense software companies based in Spain at a glance

As of Aug 28, 2026

11-50Median size (employees)

MadridLargest hub · 45 HQs

57Contacts 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

5,001-10,000

Cybersecurity and defense software companies by metro

Metro	Companies
Cybersecurity and defense software companies in Madrid	45
Cybersecurity and defense software companies in Barcelona	23
Cybersecurity and defense software companies in Malaga	7
Cybersecurity and defense software companies in Sevilla	4
Cybersecurity and defense software companies in Valencia	3
Cybersecurity and defense software companies in Paterna	3
Cybersecurity and defense software companies in Sabadell	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 “cybersecurity and defense software 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 cybersecurity and defense software companies are there based in Spain?

There are 148 cybersecurity and defense software companies headquartered in Spain as of August 2026 (RevenueBase).

What is the largest company on this list?

SIA Group, headquartered in Alcobendas, tops this list with the largest team on record.

Which city has the most cybersecurity and defense software companies?

Madrid leads with 45 headquartered companies, followed by Barcelona (23) and Malaga (7).

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 697 verified decision-maker contacts tracked across these 148 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.