Company lists · Data verified August 2026

Top 19 Cybersecurity defense contractors based in Portugal

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 52 companies tracked

There are 52 cybersecurity defense contractors headquartered in Portugal (RevenueBase, August 2026). RevenueBase tracks 696 professional contacts across them, including 294 with verified work emails and 41 with mobile numbers. Lisboa is the largest hub.

This list covers cybersecurity defense contractors 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.

52Companies

696Contacts tracked

294Verified emails

41Mobile numbers

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The 19 largest cybersecurity defense contractors based in Portugal

Ranked by team size

Top 19 of 52 cybersecurity defense contractors 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	Tribetech	Alges	51-200	55	40
4	Cybersafe	Alfragide	11-50	55	37
5	Defensepoint	Lisbon	51-200	44	16
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
19	UP & Running	Lisboa	1-10	1	1

Showing 19 of 52 cybersecurity defense contractors based in Portugal

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Cybersecurity defense contractors based in Portugal at a glance

As of Aug 28, 2026

1-10Median size (employees)

LisboaLargest hub · 11 HQs

41Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Cybersecurity defense contractors by metro

Metro	Companies
Cybersecurity defense contractors in Lisboa	11
Cybersecurity defense contractors in Porto	8
Cybersecurity defense contractors in Lisbon	7
Cybersecurity defense contractors in Alfragide	3
Cybersecurity defense contractors in Loule	1
Cybersecurity defense contractors in Trofa	1
Cybersecurity defense contractors in Alges	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 contractors”, 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 contractors are there based in Portugal?

There are 52 cybersecurity defense contractors 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 contractors?

Lisboa leads with 11 headquartered companies, followed by Porto (8) 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 294 verified decision-maker contacts tracked across these 52 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.