Company lists · Data verified August 2026

Top 25 Application security companies based in Spain

Name: Application 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 216 companies tracked

There are 216 application security companies headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 3,344 professional contacts across them, including 788 with verified work emails and 92 with mobile numbers. Madrid is the largest hub.

This list covers application 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.

216Companies

3,344Contacts tracked

788Verified emails

92Mobile numbers

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The 25 largest application security companies based in Spain

Ranked by team size

Top 25 of 216 application 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	Alhambra IT	Madrid	201-500	228	26
3	S21sec	Madrid	201-500	192	36
4	Attackiq	Barcelona	51-200	158	74
5	A3sec	Madrid	51-200	122	24
6	Tarlogic	n/a	51-200	122	21
7	A2secure	Madrid	51-200	115	24
8	Innotec Security	Madrid	501-1,000	105	14
9	Tautenet	Madrid	51-200	93	11
10	Hispasec	Malaga	51-200	68	11
11	Neverhack Spain	Barcelona	51-200	65	13
12	Jtsec Beyond IT Security	Granada	11-50	63	8
13	Bedisruptive	Madrid	51-200	54	26
14	Atalanta Cybersecurity & Digital	Madrid	51-200	49	11
15	Build38	Barcelona	51-200	48	19
16	Ackcent Cybersecurity	n/a	51-200	48	12
17	Lazarus Technology	San Sebastian De Los Reyes	51-200	43	12
18	Zepo Intelligence	Madrid	11-50	39	3
19	Zerolynx	Alcorcon	51-200	37	10
20	Apolo Cybersecurity	Barcelona	11-50	37	5
21	Madcoms Networks	Barcelona	11-50	32	13
22	Xygeni	Madrid	11-50	31	8
23	Optimumtic	Barcelona	11-50	29	1
24	Blackarrow Tarlogic	n/a	51-200	27	5
25	Hard2bit Cybersecurity	Leganes	11-50	21	2

Showing 25 of 216 application security companies based in Spain

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Application security companies based in Spain at a glance

As of Aug 28, 2026

1-10Median size (employees)

MadridLargest hub · 65 HQs

92Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

135

11-50

51-200

201-500

501-1,000

1,001-5,000

Application security companies by metro

Metro	Companies
Application security companies in Madrid	65
Application security companies in Barcelona	34
Application security companies in Malaga	10
Application security companies in Valencia	7
Application security companies in Murcia	6
Application security companies in Palma	4
Application security companies in Sevilla	4

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 “application 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 application security companies are there based in Spain?

There are 216 application 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 application security companies?

Madrid leads with 65 headquartered companies, followed by Barcelona (34) and Malaga (10).

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 788 verified decision-maker contacts tracked across these 216 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.