Company lists · Data verified August 2026

Top 25 Cybersecurity companies in Spain

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 636 companies tracked

Our directory lists 636 cybersecurity companies in Spain, with 10,637 professional contacts and 1,878 email addresses. The list was last updated in August 2026, and Madrid is the single most-represented city among the companies listed.

Cybersecurity companies provide products and services that protect systems, networks, applications, devices, and data from unauthorized access, disruption, or misuse. This list covers companies that provide cybersecurity products, services, consulting, assessments, monitoring, incident response, or related protection for digital systems and data. Ranked by team size, largest first. Data current as of August 28, 2026.

636Companies

10,637Contacts tracked

1,878Verified emails

266Mobile numbers

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The 25 largest cybersecurity companies in Spain

Ranked by team size

Top 25 of 636 cybersecurity companies 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	MNEMO	Madrid	501-1,000	444	10
4	Panda Security	Bilbao	501-1,000	329	22
5	Risco Group	Madrid	501-1,000	294	182
6	Socradar Extended Threat Intelligence	Madrid	201-500	259	139
7	Incibe	Leon	51-200	253	6
8	Alhambra IT	Madrid	201-500	228	26
9	Innovasur	Jaen	201-500	227	37
10	Essence Group	Madrid	201-500	214	17
11	Cuatroochenta	n/a	201-500	199	58
12	S21sec	Madrid	201-500	192	36
13	Govertis	Valencia	51-200	182	44
14	Attackiq	Barcelona	51-200	158	74
15	Secure&it	Las Rozas De Madrid	51-200	145	9
16	YARIX	Madrid	201-500	131	67
17	A3sec	Madrid	51-200	122	24
18	Tarlogic	n/a	51-200	122	21
19	A2secure	Madrid	51-200	115	24
20	Superna	Alicante Spain	51-200	111	18
21	Wise Security Global	Barcelona	51-200	107	18
22	Innotec Security	Madrid	501-1,000	105	14
23	Aiuken Cybersecurity	Boadilla Del Monte	51-200	104	21
24	Tautenet	Madrid	51-200	93	11
25	Sidertia By Izertis	Madrid	51-200	92	12
26	Alto Intelligence	Madrid	51-200	80	24
27	Hispasec	Malaga	51-200	68	11
28	Neverhack Spain	Barcelona	51-200	65	13

Showing 25 of 636 cybersecurity companies in Spain

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Cybersecurity companies in Spain at a glance

As of Aug 28, 2026

1-10Median size (employees)

MadridLargest hub · 190 HQs

266Contacts with mobile numbers

14Emails re-verified in last 30 days

Companies by employee count

1-10

361

11-50

199

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Companies by metro

Metro	Companies
Cybersecurity companies in Madrid	190
Cybersecurity companies in Barcelona	97
Cybersecurity companies in Malaga	26
Cybersecurity companies in Valencia	13
Cybersecurity companies in Murcia	13
Cybersecurity companies in San Sebastian	9
Cybersecurity companies in Zaragoza	8

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 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; 14 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 companies are in the directory?

The directory lists 636 cybersecurity companies in Spain.

Which city has the most cybersecurity companies?

Madrid is the single most-represented city among the cybersecurity companies on the list.

How many contacts are available for cybersecurity companies?

The directory includes 10,637 professional contacts and 1,878 email addresses for the listed cybersecurity companies.

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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.