Company lists · Data refreshed September 2026

Top 21 Cybersecurity audit companies based in Finland

There are 32 cybersecurity audit companies headquartered in Finland (RevenueBase, September 2026). RevenueBase tracks 412 professional contacts across them, including 246 with verified work emails and 16 with mobile numbers. Helsinki is the largest hub.

This list covers cybersecurity audit companies headquartered in Finland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 1, 2026.

32Companies
412Contacts tracked
246Verified emails
16Mobile numbers
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The 21 largest cybersecurity audit companies based in Finland

Ranked by team size
Top 21 of 32 cybersecurity audit companies based in Finland, ranked by team size, largest first. Data refreshed Sep 1, 2026. Evidence rates how directly each company's own description names cybersecurity audit companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContactsVerified emails
1
Nixu CorporationIndirect evidence

“Nixu is now DNV Cyber.”

Source: company website · checked Sep 1, 2026
Espoo, Finland501-1,00012970
2
NETOXIndirect evidence

“Turvallisuus ei synny sattumalta.”

Source: company website · checked Sep 1, 2026
Oulu, Finland51-20011993
3
2ns Cybersecurity OYPartial evidence

“We are a forerunner in cybersecurity.”

Source: company website · checked Sep 1, 2026
Espoo, Finland11-504329
4

“Silverskin is a premier offensive security company and the Finnish market leader in continuous security testing.”

Source: company website · checked Sep 1, 2026
Helsinki, Finland11-50259
5
FraktalIndirect evidence

“We want to help clients take care of their own cyber security.”

Source: company website · checked Sep 1, 2026
Helsinki, Finland11-501712
6
Jmjping OYIndirect evidence

“JMJping Oy tukee asiakasyrityksiä monissa IT-haasteissa, erityisesti tietoturvassa, kuten uhkien analysoinnissa, tietomurtojen ehkäisyssä ja tietoturvastrategioiden suunnittelussa.”

Source: company website · checked Sep 1, 2026
Loimaa, Finland1-1086
7
Prosecom OYPartial evidence

“We advise organizations on cybersecurity, privacy and resilience with an approach shaped around their business, operating model and risk landscape.”

Source: company website · checked Sep 1, 2026
Kuopio, Finland1-1074
8
NS AdvanceIndirect evidence

“We protect small and medium businesses from all cyber threats by delivering affordable, tailored solutions that simplify compliance, secure data, and ensure continuity-so our…”

Source: company website · checked Sep 1, 2026
Espoo, Finland51-20061
9
Cyberdo OYPartial evidence

“CyberDo is Finland's first cybersecurity agency.”

Source: company website · checked Sep 1, 2026
Helsinki, Finland1-1055
10
BravesonIndirect evidence

“Braveson is cyber security company.”

Source: company website · checked Sep 1, 2026
Jyvaskyla, Finland1-1054
11
Adminize OYPartial evidence

“Adminize offers the highest level of information security audits, architecture planning, training and all consulting that is part of the Microsoft ecosystem.”

Source: company website · checked Sep 1, 2026
Helsinki, Finland1-1041
12
Cyber Security FinlandIndirect evidence

“CSF provides Governance, Risk & Compliance Services, Security Testing, Supply Chain Information Risk Management, Secure Code Testing, Security Awareness Training, Virtual CISO…”

Source: company website · checked Sep 1, 2026
Helsinki, Finland11-5031
13
ROXECPartial evidence

“1) Want to minimise Cybersecurity challenges- Your organisation will face cybersecurity problems with almost 100% certainty within the next 12 months (Sources: FBI, PwC)- Our…”

Source: company website · checked Sep 1, 2026
Tampere, Finland1-1031
14
Cyber Audit Company OYStrong evidence

“Cyber Audit Company Oy is a Finnish cybersecurity expert firm that helps organizations protect their business, data, and reputation in the digital environment.”

Source: company website · checked Sep 1, 2026
Vantaa, Finland11-5022
15
Tougher ONEPartial evidence

“We offer compliant modern cybersecurity services based on the actual need of each customer.”

Source: company website · checked Sep 1, 2026
Tampere, Finland1-1022
16
45 Cyber LabsPartial evidence

“We are at the forefront of cybersecurity, dedicated to protecting your digital world.”

Source: company website · checked Sep 1, 2026
Espoo, Finland1-1021
17
OptimesysIndirect evidence

“OptimeSys - Asiakaslähtöistä tietoturva-asiantuntijuutta OptimeSys on kotimainen tietoturvatalo, joka on perustettu vuonna 2007.”

Source: company website · checked Sep 1, 2026
Espoo, Finland51-20011
18
On-Demand Security OYIndirect evidence

“Small and agile Cyber Security company.”

Source: company website · checked Sep 1, 2026
Jarvenpaa, Finland1-1011
19
Tekve OYIndirect evidence

“Tekve on Helsingissä sijaitseva kyberturvallisuusalan yritys.”

Source: company website · checked Sep 1, 2026
Helsinki, Finland1-1011
20
NetchainIndirect evidence

“Johdon kumppani IT:n ja kyberturvallisuuden kehittämiseen.”

Source: company website · checked Sep 1, 2026
Lohja, Finland1-1011
21
Kasin Consulting OYIndirect evidence

“KASIN Consulting is a management consulting and advisory service.”

Source: company website · checked Sep 1, 2026
Helsinki, Finland1-1011

Showing 21 of 32 cybersecurity audit companies based in Finland

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Cybersecurity audit companies based in Finland at a glance

As of Sep 1, 2026
1-10Median size (employees)
HelsinkiLargest hub · 10 HQs
16Contacts with mobile numbers
Sep 1, 2026Data refreshed

Companies by employee count

1-10
20
11-50
8
51-200
3
501-1,000
1

Cybersecurity audit companies by metro

MetroCompanies
Cybersecurity audit companies in Helsinki10
Cybersecurity audit companies in Espoo6
Cybersecurity audit companies in Tampere3
Cybersecurity audit companies in Oulu3
Cybersecurity audit companies in Vantaa2
Cybersecurity audit companies in Mariehamn1
Cybersecurity audit companies in Espoo Espoo Espoo1

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among cybersecurity audit companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
What qualifies
Companies headquartered in Finland whose own description of what they do matches “cybersecurity audit companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among cybersecurity audit companies, and records with no verified work email. Companies headquartered outside Finland are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself.
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
Every listed company carries at least one verified work email, 246 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 1, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

How many cybersecurity audit companies are there based in Finland?

There are 32 cybersecurity audit companies headquartered in Finland as of September 2026 (RevenueBase).

What is the largest company on this list?

Nixu Corporation, headquartered in Espoo, tops this list with the largest team on record.

Which city has the most cybersecurity audit companies?

Helsinki leads with 10 headquartered companies, followed by Espoo (6) and Tampere (3).

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 246 verified decision-maker contacts tracked across these 32 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 1, 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.