Company lists · Data verified August 2026

Top 25 Cybersecurity companies in Finland

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 92 companies tracked

Our directory lists 92 cybersecurity companies in Finland, with 8,129 professional contacts and 764 email addresses. The list was last updated in August 2026, and Helsinki is the single most-represented city among the companies listed.

Cybersecurity companies provide products and services that protect systems, networks, applications, devices, and data from unauthorized access, disruption, or misuse. This list covers companies that provide cybersecurity products, services, consulting, assessments, monitoring, incident response, or related protection for digital systems and data. Ranked by team size, largest first. Data current as of August 28, 2026.

92Companies

8,129Contacts tracked

764Verified emails

446Mobile numbers

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The 25 largest cybersecurity companies in Finland

Ranked by team size

Top 25 of 92 cybersecurity companies in Finland, 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	F-Secure Corporation	Helsinki	n/a	4,764	293
2	sekoia.io	Helsinki	51-200	132	83
3	Nixu Corporation	Espoo	501-1,000	129	70
4	NETOX	Oulu	51-200	119	93
5	Mintly OY	Espoo	51-200	48	31
6	2ns Cybersecurity OY	Espoo	11-50	43	29
7	Silverskin Information Security OY	Helsinki	11-50	25	9
8	Arctic Security LTD	Oulu	11-50	20	15
9	Fraktal	Helsinki	11-50	17	12
10	Locotech OY	Helsinki	11-50	14	10
11	Promea	Helsinki	11-50	14	9
12	Reformo Networks	Helsinki	11-50	13	13
13	Cyberwatch Finland	Helsinki	1-10	11	5
14	Fitsec LTD	Espoo	1-10	10	1
15	Rugged Tooling	Oulu	11-50	7	6
16	Unbreach	Espoo	1-10	7	6
17	Prosecom OY	Kuopio	1-10	7	4
18	Selfhack	Helsinki	1-10	7	3
19	Tietoturvatoimisto Monti	Espoo	1-10	6	6
20	Cyberismo	Tampere	1-10	6	5
21	NS Advance	Espoo	51-200	6	1
22	Cyberdo OY	Helsinki	1-10	5	5
23	Ngit OY	Jyvaskyla	1-10	5	5
24	Fordione OY	Helsinki	1-10	4	3
25	Netin Turva	Kuopio	1-10	4	2
26	Secflow OY	Helsinki	1-10	4	1
27	Phisherie	Helsinki	1-10	4	1
28	Finceptum OY	Riihimaki	1-10	3	2

Showing 25 of 92 cybersecurity companies in Finland

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Cybersecurity companies in Finland at a glance

As of Aug 28, 2026

1-10Median size (employees)

HelsinkiLargest hub · 35 HQs

446Contacts with mobile numbers

7Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Companies by metro

Metro	Companies
Cybersecurity companies in Helsinki	35
Cybersecurity companies in Espoo	15
Cybersecurity companies in Tampere	7
Cybersecurity companies in Oulu	7
Cybersecurity companies in Vantaa	6
Cybersecurity companies in Kuopio	5
Cybersecurity companies in Riihimaki	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 companies”, with match quality audited by blind human judging, and headquartered in Finland.
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; 7 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 companies are in the directory?

The directory lists 92 cybersecurity companies in Finland.

Which city has the most cybersecurity companies?

Helsinki is the single most-represented city among the cybersecurity companies on the list.

How many contacts are available for cybersecurity companies?

The directory includes 8,129 professional contacts and 764 email addresses for the listed cybersecurity companies.

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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.