Company lists · Data verified August 2026

Top 25 Cybersecurity for city infrastructure based in Spain

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 84 companies tracked

There are 84 cybersecurity for city infrastructure headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 2,451 professional contacts across them, including 594 with verified work emails and 24 with mobile numbers. Madrid is the largest hub.

This list covers cybersecurity for city infrastructure 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.

84Companies

2,451Contacts tracked

594Verified emails

24Mobile numbers

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The 25 largest cybersecurity for city infrastructure based in Spain

Ranked by team size

Top 25 of 84 cybersecurity for city infrastructure 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	Innovasur	Jaen	201-500	227	37
4	S21sec	Madrid	201-500	192	36
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	Aiuken Cybersecurity	Boadilla Del Monte	51-200	104	21
10	Hispasec	Malaga	51-200	68	11
11	Titanium Industrial Security S.L	San Sebastian	11-50	45	8
12	Madcoms Networks	Barcelona	11-50	32	13
13	Grupo Linka	Rivas-Vaciamadrid	11-50	30	8
14	Minery Report	Madrid	11-50	24	2
15	Hard2bit Cybersecurity	Leganes	11-50	21	2
16	Beonesec Cybersecurity	Sevilla	11-50	20	3
17	Ciberso	Madrid	1,001-5,000	14	1
18	Cibertrs	Valencia	11-50	14	1
19	Cross Mind Technology	San Sebastian De Los Reyes	11-50	13	1
20	ABF Ciberseguridad Y Sistemas	Navarrete	11-50	10	4
21	CYBER	Barcelona	11-50	9	2
22	Synergial Cybersecurity	Olesa De Montserrat	11-50	8	4
23	Cibersare	Barakaldo	1-10	8	1
24	Blackdogs	Barcelona	1-10	8	1
25	Ginzo Technologies	Logrono	11-50	6	5

Showing 25 of 84 cybersecurity for city infrastructure based in Spain

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Cybersecurity for city infrastructure based in Spain at a glance

As of Aug 28, 2026

1-10Median size (employees)

MadridLargest hub · 21 HQs

24Contacts with mobile numbers

1Emails 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

Cybersecurity for city infrastructure by metro

Metro	Companies
Cybersecurity for city infrastructure in Madrid	21
Cybersecurity for city infrastructure in Barcelona	13
Cybersecurity for city infrastructure in Malaga	3
Cybersecurity for city infrastructure in Valencia	3
Cybersecurity for city infrastructure in Sevilla	3
Cybersecurity for city infrastructure in Palma	2
Cybersecurity for city infrastructure in Boadilla Del Monte	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 “cybersecurity for city infrastructure”, 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 for city infrastructure are there based in Spain?

There are 84 cybersecurity for city infrastructure 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 for city infrastructure?

Madrid leads with 21 headquartered companies, followed by Barcelona (13) and Malaga (3).

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 594 verified decision-maker contacts tracked across these 84 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.