Company lists · Data verified August 2026

Top 25 Computer security companies based in Spain

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 97 companies tracked

There are 97 computer security companies headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 2,303 professional contacts across them, including 512 with verified work emails and 46 with mobile numbers. Madrid is the largest hub.

This list covers computer security 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.

97Companies

2,303Contacts tracked

512Verified emails

46Mobile numbers

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The 25 largest computer security companies based in Spain

Ranked by team size

Top 25 of 97 computer security 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	Advens	Barcelona	501-1,000	588	314
2	Panda Security	Bilbao	501-1,000	329	22
3	Alhambra IT	Madrid	201-500	228	26
4	S21sec	Madrid	201-500	192	36
5	A3sec	Madrid	51-200	122	24
6	Tarlogic	n/a	51-200	122	21
7	Hispasec	Malaga	51-200	68	11
8	Lazarus Technology	San Sebastian De Los Reyes	51-200	43	12
9	Optenet Allot	Madrid	501-1,000	43	3
10	Zepo Intelligence	Madrid	11-50	39	3
11	Ironchip	Madrid	11-50	37	7
12	Apolo Cybersecurity	Barcelona	11-50	37	5
13	Beonesec Cybersecurity	Sevilla	11-50	20	3
14	Geserisk Centro DE Gestión DE LA Seguridad Y EL Riesgo Cibernético	Bormujos	11-50	16	4
15	Electro Alavesa Seguridad By Attlon	Vitoria	11-50	13	3
16	ABF Ciberseguridad Y Sistemas	Navarrete	11-50	10	4
17	Synergial Cybersecurity	Olesa De Montserrat	11-50	8	4
18	Sophos Iberia	Madrid	11-50	8	1
19	Edsi Trend España	Madrid	11-50	8	1
20	Cibersare	Barakaldo	1-10	8	1
21	Sumwall Technology	Madrid	1-10	7	1
22	Cibersegura	n/a	1-10	3	2
23	Drainware	n/a	11-50	3	1
24	Alisec Soluciones S.L	Llanera	1-10	2	2
25	Pelion Consulting	n/a	1-10	1	1

Showing 25 of 97 computer security companies based in Spain

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 512 reachable decision-makers.

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Computer security companies based in Spain at a glance

As of Aug 28, 2026

1-10Median size (employees)

MadridLargest hub · 26 HQs

46Contacts with mobile numbers

3Emails 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

Computer security companies by metro

Metro	Companies
Computer security companies in Madrid	26
Computer security companies in Barcelona	12
Computer security companies in Malaga	8
Computer security companies in Sevilla	3
Computer security companies in Pozuelo De Alarcon	2
Computer security companies in Palma	2
Computer security companies in Murcia	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 “computer security 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; 3 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 computer security companies are there based in Spain?

There are 97 computer security companies headquartered in Spain as of August 2026 (RevenueBase).

What is the largest company on this list?

Advens, headquartered in Barcelona, tops this list with the largest team on record.

Which city has the most computer security companies?

Madrid leads with 26 headquartered companies, followed by Barcelona (12) and Malaga (8).

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 512 verified decision-maker contacts tracked across these 97 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.