Company lists · Data verified August 2026

Top 25 Cybersecurity firms based in Portugal

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 110 companies tracked

There are 110 cybersecurity firms headquartered in Portugal (RevenueBase, August 2026). RevenueBase tracks 3,248 professional contacts across them, including 1,661 with verified work emails and 354 with mobile numbers. Lisboa is the largest hub.

This list covers cybersecurity firms 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.

110Companies

3,248Contacts tracked

1,661Verified emails

354Mobile numbers

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The 25 largest cybersecurity firms based in Portugal

Ranked by team size

Top 25 of 110 cybersecurity firms 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	N-Able	Lisboa	1,001-5,000	1,881	1,243
2	Securnet	Lisboa	51-200	134	85
3	Armis Group	Porto	201-500	115	5
4	Visionware	Porto	51-200	105	53
5	Layer8	Porto	51-200	98	74
6	Cybersafe	Alfragide	11-50	55	37
7	Defensepoint	Lisbon	51-200	44	16
8	Chief Security Officers, SA	Amadora	11-50	43	7
9	Ethiack	Paranhos	11-50	41	24
10	Next IT	Vila Nova De Gaia	11-50	25	12
11	Anubisnetworks	Almada	11-50	25	3
12	Rolling Space	Braga	11-50	12	5
13	Aegis Authentication Technologies	Talaide	11-50	12	3
14	Cyberprotech	Loule	1-10	12	2
15	Balwurk	Lisboa	11-50	10	7
16	Lockem	Porto Salvo	1-10	10	5
17	MGVSI	Trofa	1-10	9	6
18	Cyberx, LDA	Matosinhos	1-10	8	3
19	Securityside, Cybersecurity Services	Porto	11-50	7	6
20	Skill & Reach	Porto	1-10	7	4
21	Vicxer	Lisbon	11-50	6	3
22	Cesicp	Lisbon	11-50	5	3
23	Cyberawareness	Lisboa	1-10	5	2
24	ALLBS	Lajes Do Pico	11-50	5	1
25	Abusetotal	Porto	1-10	4	4

Showing 25 of 110 cybersecurity firms based in Portugal

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Cybersecurity firms based in Portugal at a glance

As of Aug 28, 2026

1-10Median size (employees)

LisboaLargest hub · 19 HQs

354Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Cybersecurity firms by metro

Metro	Companies
Cybersecurity firms in Lisboa	19
Cybersecurity firms in Porto	15
Cybersecurity firms in Lisbon	15
Cybersecurity firms in Amadora	4
Cybersecurity firms in Oeiras	3
Cybersecurity firms in Alfragide	3
Cybersecurity firms in Santarem	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 firms”, 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; 4 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 firms are there based in Portugal?

There are 110 cybersecurity firms headquartered in Portugal as of August 2026 (RevenueBase).

What is the largest company on this list?

N-Able, headquartered in Lisboa, tops this list with the largest team on record.

Which city has the most cybersecurity firms?

Lisboa leads with 19 headquartered companies, followed by Porto (15) and Lisbon (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 1,661 verified decision-maker contacts tracked across these 110 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.