Company lists · Data verified August 2026

Top 17 Application security testing companies based in Spain

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 55 companies tracked

There are 55 application security testing companies headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 654 professional contacts across them, including 151 with verified work emails and 66 with mobile numbers. Madrid is the largest hub.

This list covers application security testing 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.

55Companies

654Contacts tracked

151Verified emails

66Mobile numbers

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The 17 largest application security testing companies based in Spain

Ranked by team size

Top 17 of 55 application security testing 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	Attackiq	Barcelona	51-200	158	74
2	Tarlogic	n/a	51-200	122	21
3	Jtsec Beyond IT Security	Granada	11-50	63	8
4	Build38	Barcelona	51-200	48	19
5	Zerolynx	Alcorcon	51-200	37	10
6	Optimumtic	Barcelona	11-50	29	1
7	Gotham Digital Science, A Stroz Friedberg Company	Madrid	51-200	21	1
8	Secur0	Madrid	11-50	20	1
9	Hack By Security	Valencia	11-50	18	2
10	Layakk	Paterna	11-50	15	1
11	ZEROD	Barcelona	11-50	11	4
12	Xray Cybersecurity	Valencia	11-50	8	1
13	Bcnsoluciona Ciberseguridad DE Confianza, Siempre Existe UNA Solución	Barcelona	1-10	6	2
14	Asperis Security	Barcelona	1-10	2	2
15	Alisec Soluciones S.L	Llanera	1-10	2	2
16	Jáquers Ciberseguridad	Alicante	1-10	1	1
17	Sg6	Murcia	1-10	1	1

Showing 17 of 55 application security testing companies based in Spain

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Application security testing companies based in Spain at a glance

As of Aug 28, 2026

1-10Median size (employees)

MadridLargest hub · 18 HQs

66Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Application security testing companies by metro

Metro	Companies
Application security testing companies in Madrid	18
Application security testing companies in Barcelona	10
Application security testing companies in Valencia	5
Application security testing companies in Malaga	3
Application security testing companies in Donostia-San Sebastian	2
Application security testing companies in Murcia	2
Application security testing companies in Sabadell	1

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 testing 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; 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 application security testing companies are there based in Spain?

There are 55 application security testing companies headquartered in Spain as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most application security testing companies?

Madrid leads with 18 headquartered companies, followed by Barcelona (10) and Valencia (5).

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 151 verified decision-maker contacts tracked across these 55 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.