Company lists · Data verified August 2026

Top 25 Cybersecurity startups based in Portugal

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 81 companies tracked

There are 81 cybersecurity startups headquartered in Portugal (RevenueBase, August 2026). RevenueBase tracks 2,915 professional contacts across them, including 1,516 with verified work emails and 334 with mobile numbers. Porto is the largest hub.

This list covers cybersecurity startups 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.

81Companies

2,915Contacts tracked

1,516Verified emails

334Mobile numbers

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The 25 largest cybersecurity startups based in Portugal

Ranked by team size

Top 25 of 81 cybersecurity startups 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	Armis Group	Porto	201-500	115	5
3	Layer8	Porto	51-200	98	74
4	Orbcom	Matosinhos	51-200	70	40
5	Cybersafe	Alfragide	11-50	55	37
6	Defensepoint	Lisbon	51-200	44	16
7	Chief Security Officers, SA	Amadora	11-50	43	7
8	Ethiack	Paranhos	11-50	41	24
9	Next IT	Vila Nova De Gaia	11-50	25	12
10	Anubisnetworks	Almada	11-50	25	3
11	The Rock	Gouveia	1-10	13	1
12	Rolling Space	Braga	11-50	12	5
13	Cyberprotech	Loule	1-10	12	2
14	Balwurk	Lisboa	11-50	10	7
15	Lockem	Porto Salvo	1-10	10	5
16	GAT Infosec	Lisboa	11-50	10	2
17	Securityside, Cybersecurity Services	Porto	11-50	7	6
18	Partneer	Massama	201-500	7	4
19	Vicxer	Lisbon	11-50	6	3
20	ALLBS	Lajes Do Pico	11-50	5	1
21	Abusetotal	Porto	1-10	4	4
22	Switch Digital Consulting	Porto	1-10	4	2
23	Particle Summary	Lisbon	1-10	4	1
24	Bytenuts	Funchal	1-10	4	1
25	3 Strategy	Odivelas	1-10	3	1

Showing 25 of 81 cybersecurity startups based in Portugal

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Cybersecurity startups based in Portugal at a glance

As of Aug 28, 2026

1-10Median size (employees)

PortoLargest hub · 13 HQs

334Contacts 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 startups by metro

Metro	Companies
Cybersecurity startups in Porto	13
Cybersecurity startups in Lisbon	13
Cybersecurity startups in Lisboa	12
Cybersecurity startups in Alfragide	3
Cybersecurity startups in Oeiras	3
Cybersecurity startups in Coimbra	2
Cybersecurity startups in Odivelas	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 startups”, 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 startups are there based in Portugal?

There are 81 cybersecurity startups 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 startups?

Porto leads with 13 headquartered companies, followed by Lisbon (13) and Lisboa (12).

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 1,516 verified decision-maker contacts tracked across these 81 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.