Company lists · Data verified August 2026

Top 25 Cybersecurity incident response firms based in Spain

Name: Cybersecurity incident response firms based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 194 companies tracked

There are 194 cybersecurity incident response firms headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 3,305 professional contacts across them, including 848 with verified work emails and 90 with mobile numbers. Madrid is the largest hub.

This list covers cybersecurity incident response firms 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.

194Companies

3,305Contacts tracked

848Verified emails

90Mobile numbers

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The 25 largest cybersecurity incident response firms based in Spain

Ranked by team size

Top 25 of 194 cybersecurity incident response firms 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	S21sec	Madrid	201-500	192	36
3	Govertis	Valencia	51-200	182	44
4	Attackiq	Barcelona	51-200	158	74
5	YARIX	Madrid	201-500	131	67
6	A3sec	Madrid	51-200	122	24
7	Tarlogic	n/a	51-200	122	21
8	A2secure	Madrid	51-200	115	24
9	Innotec Security	Madrid	501-1,000	105	14
10	Aiuken Cybersecurity	Boadilla Del Monte	51-200	104	21
11	Sidertia By Izertis	Madrid	51-200	92	12
12	Hispasec	Malaga	51-200	68	11
13	Neverhack Spain	Barcelona	51-200	65	13
14	Ackcent Cybersecurity	n/a	51-200	48	12
15	Lazarus Technology	San Sebastian De Los Reyes	51-200	43	12
16	Cyberpeace	Sant Cugat Del Valles	51-200	41	8
17	Zepo Intelligence	Madrid	11-50	39	3
18	Zerolynx	Alcorcon	51-200	37	10
19	Apolo Cybersecurity	Barcelona	11-50	37	5
20	Madcoms Networks	Barcelona	11-50	32	13
21	Perseus Cybersecurity Services	Derio	11-50	32	9
22	Optimumtic	Barcelona	11-50	29	1
23	Blackarrow Tarlogic	n/a	51-200	27	5
24	Jakincode	Vitoria-Gasteiz	11-50	26	3
25	Hard2bit Cybersecurity	Leganes	11-50	21	2

Showing 25 of 194 cybersecurity incident response firms based in Spain

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 848 reachable decision-makers.

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Cybersecurity incident response firms based in Spain at a glance

As of Aug 28, 2026

1-10Median size (employees)

MadridLargest hub · 65 HQs

90Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

102

11-50

51-200

201-500

501-1,000

1,001-5,000

Cybersecurity incident response firms by metro

Metro	Companies
Cybersecurity incident response firms in Madrid	65
Cybersecurity incident response firms in Barcelona	33
Cybersecurity incident response firms in Malaga	9
Cybersecurity incident response firms in Valencia	8
Cybersecurity incident response firms in Murcia	4
Cybersecurity incident response firms in Sevilla	4
Cybersecurity incident response firms in Granada	3

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 incident response firms”, 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 incident response firms are there based in Spain?

There are 194 cybersecurity incident response firms 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 cybersecurity incident response firms?

Madrid leads with 65 headquartered companies, followed by Barcelona (33) and Malaga (9).

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 848 verified decision-maker contacts tracked across these 194 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.