Company lists · Data verified August 2026

Top 18 Cybersecurity defense companies based in Portugal

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 57 companies tracked

There are 57 cybersecurity defense companies headquartered in Portugal (RevenueBase, August 2026). RevenueBase tracks 830 professional contacts across them, including 265 with verified work emails and 39 with mobile numbers. Lisboa is the largest hub.

This list covers cybersecurity defense 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.

57Companies

830Contacts tracked

265Verified emails

39Mobile numbers

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The 18 largest cybersecurity defense companies based in Portugal

Ranked by team size

Top 18 of 57 cybersecurity defense 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	Layer8	Porto	51-200	98	74
3	Cybersafe	Alfragide	11-50	55	37
4	Defensepoint	Lisbon	51-200	44	16
5	Next IT	Vila Nova De Gaia	11-50	25	12
6	Cyberprotech	Loule	1-10	12	2
7	Balwurk	Lisboa	11-50	10	7
8	MGVSI	Trofa	1-10	9	6
9	Securityside, Cybersecurity Services	Porto	11-50	7	6
10	Thales Edisoft Portugal	Paco De Arcos	201-500	6	3
11	Vicxer	Lisbon	11-50	6	3
12	Abusetotal	Porto	1-10	4	4
13	Switch Digital Consulting	Porto	1-10	4	2
14	3 Strategy	Odivelas	1-10	3	1
15	Takemore	Rebordosa Rebordosa	1-10	2	2
16	Pround	Maceda	1-10	2	2
17	Ubixploit	Lisboa	1-10	2	1
18	Cyberops Trustworthy Cybersecurity	Alfragide	11-50	1	1

Showing 18 of 57 cybersecurity defense companies based in Portugal

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Cybersecurity defense companies based in Portugal at a glance

As of Aug 28, 2026

1-10Median size (employees)

LisboaLargest hub · 11 HQs

39Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Cybersecurity defense companies by metro

Metro	Companies
Cybersecurity defense companies in Lisboa	11
Cybersecurity defense companies in Porto	9
Cybersecurity defense companies in Lisbon	7
Cybersecurity defense companies in Alfragide	3
Cybersecurity defense companies in Sintra	2
Cybersecurity defense companies in Oeiras	2
Cybersecurity defense companies in Malveira Malveira	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 defense 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 defense companies are there based in Portugal?

There are 57 cybersecurity defense 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 defense companies?

Lisboa leads with 11 headquartered companies, followed by Porto (9) and Lisbon (7).

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 265 verified decision-maker contacts tracked across these 57 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.