Company lists · Data verified August 2026

Top 16 Cybersecurity and defense software companies based in Finland

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 27 companies tracked

There are 27 cybersecurity and defense software companies headquartered in Finland (RevenueBase, August 2026). RevenueBase tracks 1,241 professional contacts across them, including 761 with verified work emails and 39 with mobile numbers. Helsinki is the largest hub.

This list covers cybersecurity and defense software companies 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.

27Companies

1,241Contacts tracked

761Verified emails

39Mobile numbers

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The 16 largest cybersecurity and defense software companies based in Finland

Ranked by team size

Top 16 of 27 cybersecurity and defense software companies 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	INSTA	Vantaa	1,001-5,000	649	503
2	sekoia.io	Helsinki	51-200	132	83
3	NETOX	Oulu	51-200	119	93
4	Digital14	Tampere	501-1,000	118	20
5	Military Work	Helsinki	501-1,000	110	6
6	2ns Cybersecurity OY	Espoo	11-50	43	29
7	Arctic Security LTD	Oulu	11-50	20	15
8	Fitsec LTD	Espoo	1-10	10	1
9	Braveson	Jyvaskyla	1-10	5	4
10	Käpy A.I. OY	Kuopio	1-10	3	1
11	ROXEC	Tampere	1-10	3	1
12	Elbit Systems Finland	Tampere	1-10	2	1
13	Optimesys	Espoo	51-200	1	1
14	Tekve OY	Helsinki	1-10	1	1
15	On-Demand Security OY	Jarvenpaa	1-10	1	1
16	Mirorsec OY	Tampere	1-10	1	1

Showing 16 of 27 cybersecurity and defense software companies based in Finland

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Cybersecurity and defense software companies based in Finland at a glance

As of Aug 28, 2026

1-10Median size (employees)

HelsinkiLargest hub · 6 HQs

39Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

501-1,000

1,001-5,000

Cybersecurity and defense software companies by metro

Metro	Companies
Cybersecurity and defense software companies in Helsinki	6
Cybersecurity and defense software companies in Tampere	5
Cybersecurity and defense software companies in Espoo	4
Cybersecurity and defense software companies in Oulu	4
Cybersecurity and defense software companies in Kuopio	2
Cybersecurity and defense software companies in Mariehamn	1
Cybersecurity and defense software companies in Espoo Espoo Espoo	1
Cybersecurity and defense software companies in Jarvenpaa	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 and defense software 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; 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 and defense software companies are there based in Finland?

There are 27 cybersecurity and defense software companies headquartered in Finland as of August 2026 (RevenueBase).

What is the largest company on this list?

INSTA, headquartered in Vantaa, tops this list with the largest team on record.

Which city has the most cybersecurity and defense software companies?

Helsinki leads with 6 headquartered companies, followed by Tampere (5) and Espoo (4).

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 761 verified decision-maker contacts tracked across these 27 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.