Company lists · Data verified August 2026

Top 25 Cybersecurity staffing based in Spain

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 271 companies tracked

There are 271 cybersecurity staffing headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 4,158 professional contacts across them, including 947 with verified work emails and 128 with mobile numbers. Madrid is the largest hub.

This list covers cybersecurity staffing 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.

271Companies

4,158Contacts tracked

947Verified emails

128Mobile numbers

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The 25 largest cybersecurity staffing based in Spain

Ranked by team size

Top 25 of 271 cybersecurity staffing 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	Alhambra IT	Madrid	201-500	228	26
3	S21sec	Madrid	201-500	192	36
4	Attackiq	Barcelona	51-200	158	74
5	Exis TI	Madrid	51-200	138	7
6	YARIX	Madrid	201-500	131	67
7	A3sec	Madrid	51-200	122	24
8	Tarlogic	n/a	51-200	122	21
9	A2secure	Madrid	51-200	115	24
10	Superna	Alicante Spain	51-200	111	18
11	Innotec Security	Madrid	501-1,000	105	14
12	Aiuken Cybersecurity	Boadilla Del Monte	51-200	104	21
13	Hispasec	Malaga	51-200	68	11
14	Neverhack Spain	Barcelona	51-200	65	13
15	Jtsec Beyond IT Security	Granada	11-50	63	8
16	Bedisruptive	Madrid	51-200	54	26
17	Atalanta Cybersecurity & Digital	Madrid	51-200	49	11
18	Ackcent Cybersecurity	n/a	51-200	48	12
19	Gestinet Internet Informàtica	Valencia	51-200	48	12
20	Lazarus Technology	San Sebastian De Los Reyes	51-200	43	12
21	Zepo Intelligence	Madrid	11-50	39	3
22	Apolo Cybersecurity	Barcelona	11-50	37	5
23	Perseus Cybersecurity Services	Derio	11-50	32	9
24	Grupo Linka	Rivas-Vaciamadrid	11-50	30	8
25	Serval Networks	Alcobendas	51-200	28	3

Showing 25 of 271 cybersecurity staffing based in Spain

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 947 reachable decision-makers.

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Cybersecurity staffing based in Spain at a glance

As of Aug 28, 2026

1-10Median size (employees)

MadridLargest hub · 82 HQs

128Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

147

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Cybersecurity staffing by metro

Metro	Companies
Cybersecurity staffing in Madrid	82
Cybersecurity staffing in Barcelona	43
Cybersecurity staffing in Malaga	15
Cybersecurity staffing in Valencia	9
Cybersecurity staffing in Zaragoza	5
Cybersecurity staffing in Sevilla	5
Cybersecurity staffing in Sabadell	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 staffing”, 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; 2 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 staffing are there based in Spain?

There are 271 cybersecurity staffing 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 staffing?

Madrid leads with 82 headquartered companies, followed by Barcelona (43) and Malaga (15).

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 947 verified decision-maker contacts tracked across these 271 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.