Company lists · Data verified August 2026

Top 25 Cybersecurity consulting companies based in Portugal

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 98 companies tracked

There are 98 cybersecurity consulting companies headquartered in Portugal (RevenueBase, August 2026). RevenueBase tracks 1,034 professional contacts across them, including 402 with verified work emails and 56 with mobile numbers. Lisboa is the largest hub.

This list covers cybersecurity consulting 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.

98Companies

1,034Contacts tracked

402Verified emails

56Mobile numbers

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The 25 largest cybersecurity consulting companies based in Portugal

Ranked by team size

Top 25 of 98 cybersecurity consulting 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	Visionware	Porto	51-200	105	53
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	Next IT	Vila Nova De Gaia	11-50	25	12
9	Itgest IS	Matosinhos	51-200	21	8
10	Rolling Space	Braga	11-50	12	5
11	Cyberprotech	Loule	1-10	12	2
12	DPO Consulting	Lisboa	1-10	11	2
13	Balwurk	Lisboa	11-50	10	7
14	Lockem	Porto Salvo	1-10	10	5
15	GAT Infosec	Lisboa	11-50	10	2
16	MGVSI	Trofa	1-10	9	6
17	Cyberx, LDA	Matosinhos	1-10	8	3
18	Securityside, Cybersecurity Services	Porto	11-50	7	6
19	Vicxer	Lisbon	11-50	6	3
20	Homeostase	Amadora	1-10	6	1
21	Abusetotal	Porto	1-10	4	4
22	Switch Digital Consulting	Porto	1-10	4	2
23	Segurti	Matosinhos	1-10	4	1
24	Shadowstep	Barcarena	1-10	3	2
25	3 Strategy	Odivelas	1-10	3	1

Showing 25 of 98 cybersecurity consulting companies based in Portugal

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Cybersecurity consulting companies based in Portugal at a glance

As of Aug 28, 2026

1-10Median size (employees)

LisboaLargest hub · 24 HQs

56Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Cybersecurity consulting companies by metro

Metro	Companies
Cybersecurity consulting companies in Lisboa	24
Cybersecurity consulting companies in Porto	11
Cybersecurity consulting companies in Lisbon	11
Cybersecurity consulting companies in Amadora	4
Cybersecurity consulting companies in Matosinhos	4
Cybersecurity consulting companies in Alfragide	3
Cybersecurity consulting companies in Oeiras	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 consulting 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 consulting companies are there based in Portugal?

There are 98 cybersecurity consulting 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 consulting companies?

Lisboa leads with 24 headquartered companies, followed by Porto (11) and Lisbon (11).

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 402 verified decision-maker contacts tracked across these 98 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.