Company lists · Data verified August 2026

Top 25 Cybersecurity service providers based in Portugal

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 88 companies tracked

There are 88 cybersecurity service providers headquartered in Portugal (RevenueBase, August 2026). RevenueBase tracks 1,110 professional contacts across them, including 460 with verified work emails and 55 with mobile numbers. Lisboa is the largest hub.

This list covers cybersecurity service providers 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.

88Companies

1,110Contacts tracked

460Verified emails

55Mobile numbers

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The 25 largest cybersecurity service providers based in Portugal

Ranked by team size

Top 25 of 88 cybersecurity service providers 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	AVIT	Oeiras	201-500	174	81
2	Securnet	Lisboa	51-200	134	85
3	Layer8	Porto	51-200	98	74
4	Orbcom	Matosinhos	51-200	70	40
5	Tribetech	Alges	51-200	55	40
6	Cybersafe	Alfragide	11-50	55	37
7	Defensepoint	Lisbon	51-200	44	16
8	Next IT	Vila Nova De Gaia	11-50	25	12
9	Anubisnetworks	Almada	11-50	25	3
10	Itgest IS	Matosinhos	51-200	21	8
11	Rolling Space	Braga	11-50	12	5
12	Cyberprotech	Loule	1-10	12	2
13	Balwurk	Lisboa	11-50	10	7
14	Lockem	Porto Salvo	1-10	10	5
15	MGVSI	Trofa	1-10	9	6
16	Cyberx, LDA	Matosinhos	1-10	8	3
17	Securityside, Cybersecurity Services	Porto	11-50	7	6
18	Vicxer	Lisbon	11-50	6	3
19	ALLBS	Lajes Do Pico	11-50	5	1
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 88 cybersecurity service providers based in Portugal

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Cybersecurity service providers based in Portugal at a glance

As of Aug 28, 2026

1-10Median size (employees)

LisboaLargest hub · 17 HQs

55Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Cybersecurity service providers by metro

Metro	Companies
Cybersecurity service providers in Lisboa	17
Cybersecurity service providers in Lisbon	11
Cybersecurity service providers in Porto	10
Cybersecurity service providers in Alfragide	3
Cybersecurity service providers in Matosinhos	3
Cybersecurity service providers in Vila Nova De Gaia	2
Cybersecurity service providers in Beja	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 service providers”, 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; 1 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 service providers are there based in Portugal?

There are 88 cybersecurity service providers headquartered in Portugal as of August 2026 (RevenueBase).

What is the largest company on this list?

AVIT, headquartered in Oeiras, tops this list with the largest team on record.

Which city has the most cybersecurity service providers?

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 460 verified decision-maker contacts tracked across these 88 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.