Company lists · Data verified August 2026

Top 25 Cybersecurity firms based in Finland

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 86 companies tracked

There are 86 cybersecurity firms headquartered in Finland (RevenueBase, August 2026). RevenueBase tracks 7,778 professional contacts across them, including 766 with verified work emails and 440 with mobile numbers. Helsinki is the largest hub.

This list covers cybersecurity firms headquartered in Finland, 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.

86Companies

7,778Contacts tracked

766Verified emails

440Mobile numbers

Unlock all 86 companies Free account · no credit card · 2 minutes

The 25 largest cybersecurity firms based in Finland

Ranked by team size

Top 25 of 86 cybersecurity firms based 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	Jmjping OY	Loimaa	1-10	8	6
16	Rugged Tooling	Oulu	11-50	7	6
17	Unbreach	Espoo	1-10	7	6
18	Prosecom OY	Kuopio	1-10	7	4
19	Selfhack	Helsinki	1-10	7	3
20	Tietoturvatoimisto Monti	Espoo	1-10	6	6
21	Valega Chain Analytics	Helsinki	1-10	6	5
22	Cyberismo	Tampere	1-10	6	5
23	NS Advance	Espoo	51-200	6	1
24	Cyberdo OY	Helsinki	1-10	5	5
25	Ngit OY	Jyvaskyla	1-10	5	5

Showing 25 of 86 cybersecurity firms based in Finland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 766 reachable decision-makers.

Free account · no credit card

See all 86 companies

Cybersecurity firms based in Finland at a glance

As of Aug 28, 2026

1-10Median size (employees)

HelsinkiLargest hub · 33 HQs

440Contacts with mobile numbers

2Emails 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

Cybersecurity firms by metro

Metro	Companies
Cybersecurity firms in Helsinki	33
Cybersecurity firms in Espoo	16
Cybersecurity firms in Oulu	7
Cybersecurity firms in Tampere	6
Cybersecurity firms in Vantaa	6
Cybersecurity firms in Kuopio	4
Cybersecurity firms in Jyvaskyla	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 firms”, 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; 2 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 firms are there based in Finland?

There are 86 cybersecurity firms headquartered in Finland as of August 2026 (RevenueBase).

What is the largest company on this list?

F-Secure Corporation, headquartered in Helsinki, tops this list with the largest team on record.

Which city has the most cybersecurity firms?

Helsinki leads with 33 headquartered companies, followed by Espoo (16) and Oulu (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 766 verified decision-maker contacts tracked across these 86 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.

Ready to reach these companies? Verified emails and direct dials for all 86 cybersecurity firms based in Finland. Start with a free account, no credit card.

Get the full list

Related lists

Cybersecurity firms by geography

Browse the directory

Browse: Companies home · All Finland lists · All Cybersecurity firms lists · New lists

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.