Company lists · Data verified August 2026

Top 25 Cybersecurity services companies based in Portugal

Name: Cybersecurity services companies based in Portugal
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 services companies headquartered in Portugal (RevenueBase, August 2026). RevenueBase tracks 929 professional contacts across them, including 360 with verified work emails and 47 with mobile numbers. Lisboa is the largest hub.

This list covers cybersecurity services companies headquartered in Portugal, 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

929Contacts tracked

360Verified emails

47Mobile numbers

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The 25 largest cybersecurity services companies based in Portugal

Ranked by team size

Top 25 of 84 cybersecurity services companies based in Portugal, 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	Securnet	Lisboa	51-200	134	85
2	Visionware	Porto	51-200	105	53
3	Layer8	Porto	51-200	98	74
4	Cybersafe	Alfragide	11-50	55	37
5	Defensepoint	Lisbon	51-200	44	16
6	Chief Security Officers, SA	Amadora	11-50	43	7
7	Next IT	Vila Nova De Gaia	11-50	25	12
8	Anubisnetworks	Almada	11-50	25	3
9	Itgest IS	Matosinhos	51-200	21	8
10	Rolling Space	Braga	11-50	12	5
11	Cyberprotech	Loule	1-10	12	2
12	Balwurk	Lisboa	11-50	10	7
13	Lockem	Porto Salvo	1-10	10	5
14	MGVSI	Trofa	1-10	9	6
15	Cyberx, LDA	Matosinhos	1-10	8	3
16	Securityside, Cybersecurity Services	Porto	11-50	7	6
17	Vicxer	Lisbon	11-50	6	3
18	Domusnet	Fatima	1-10	6	1
19	Cyberawareness	Lisboa	1-10	5	2
20	Abusetotal	Porto	1-10	4	4
21	Switch Digital Consulting	Porto	1-10	4	2
22	Extinçor	Ponta Delgada	11-50	3	2
23	Shadowstep	Barcarena	1-10	3	2
24	3 Strategy	Odivelas	1-10	3	1
25	Sysvalue	Lisboa	11-50	2	2

Showing 25 of 84 cybersecurity services companies based in Portugal

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Cybersecurity services companies based in Portugal at a glance

As of Aug 28, 2026

1-10Median size (employees)

LisboaLargest hub · 17 HQs

47Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Cybersecurity services companies by metro

Metro	Companies
Cybersecurity services companies in Lisboa	17
Cybersecurity services companies in Lisbon	11
Cybersecurity services companies in Porto	10
Cybersecurity services companies in Alfragide	3
Cybersecurity services companies in Amadora	3
Cybersecurity services companies in Matosinhos	2
Cybersecurity services companies in Rebordosa Rebordosa	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 “cybersecurity services companies”, with match quality audited by blind human judging, and headquartered in Portugal.
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; 0 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 services companies are there based in Portugal?

There are 84 cybersecurity services companies headquartered in Portugal as of August 2026 (RevenueBase).

What is the largest company on this list?

Securnet, headquartered in Lisboa, tops this list with the largest team on record.

Which city has the most cybersecurity services companies?

Lisboa leads with 17 headquartered companies, followed by Lisbon (11) and Porto (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 360 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.