Top Cybersecurity Companies In Finland For 2027

Last updated: November 14, 2026

The best cybersecurity companies in Finland for 2027 are WithSecure, F-Secure, SSH Communications Security, DNV Cyber, Reversec, Hoxhunt, Insta, Truesec, Netox and Second Nature Security. WithSecure and F-Secure are global security software brands, SSH Communications Security leads in secure access, and DNV Cyber and Reversec are major consultancy and testing teams.

Finland has a deep cybersecurity heritage and a growing defence and critical infrastructure market.

How We Chose

We reviewed each company’s products or services, years active, Finnish presence and public sector work, and ordered them from product leaders to service specialists. Read more about how we research and rank companies.

Finnish Cybersecurity Companies At A Glance

Company	Based In	Best For	Key Fact
WithSecure	Helsinki	Endpoint detection and response for mid-market	Listed on Nasdaq Helsinki
F-Secure	Helsinki	Consumer and telecom-delivered security	Heritage dating to 1988
SSH Communications Security	Helsinki	Privileged and secure access	Created the original SSH protocol
DNV Cyber	Espoo	Security consulting and managed services	Nixu was acquired by DNV in 2023
Reversec	Helsinki	Penetration testing and red teaming	Formerly WithSecure Consulting
Hoxhunt	Helsinki	Human risk and phishing training	Used by large enterprises worldwide
Insta	Tampere	Defence, public safety and OT security	Long-standing defence supplier
Truesec	Helsinki	Incident response and SOC	Nordic security firm with Finnish team
Netox	Kuopio	Managed security for SMEs	Finnish managed security provider
Second Nature Security	Helsinki	Security strategy and awareness	Listed in Finland’s cyber directory

Best Cybersecurity Companies In Finland For 2027

1. WithSecure — Business Security Platform, Formerly F-Secure Business

WithSecure, formerly F-Secure’s business arm, provides endpoint protection, detection and response and managed security for mid-sized companies.

Choose it for a European security platform.

2. F-Secure — Consumer Security Brand Since 1988

F-Secure focuses on consumer security, often delivered through telecom operators and partners.

It suits operators and consumer brands.

3. SSH Communications Security — Inventor Of The SSH Protocol

SSH Communications Security builds secure access, privileged access and quantum-safe communication products.

Choose it for critical access control.

4. DNV Cyber — Former Nixu, Now Part Of DNV

DNV Cyber, built on the former Nixu, offers security consulting, OT security and managed services.

It suits industrial and critical infrastructure clients.

5. Reversec — Offensive Security And Testing Consultancy

Reversec, formerly WithSecure Consulting, provides penetration testing, red teaming and security research.

Choose it for deep technical testing.

6. Hoxhunt — Security Awareness And Phishing Training

Hoxhunt runs adaptive phishing and security awareness training for employees.

It suits companies reducing human risk.

7. Insta — Security For Defence And Critical Infrastructure

Insta delivers cybersecurity and digital solutions for defence, public safety and industry.

Choose it for high-security environments.

8. Truesec — Incident Response And Managed Detection

Truesec provides incident response, managed detection and security consulting across the Nordics.

It suits companies needing fast breach response.

9. Netox — Managed Security And IT Infrastructure

Netox provides managed security, networks and IT infrastructure for Finnish organisations.

Choose it for ongoing managed protection.

10. Second Nature Security — Security Consulting And Training

Second Nature Security offers security consulting and awareness services for Finnish companies.

It suits smaller teams building a security programme.

How To Choose A Cybersecurity Company In Finland

Do You Need Products Or Services?

Decide whether you need software, testing, consulting or managed security.

Are They Cleared For Your Sector?

Defence and critical infrastructure may need security clearances.

Can They Help With NIS2?

Many Finnish organisations now fall under NIS2 rules.

How Fast Do They Respond?

Ask about incident response times and on-call cover.

Frequently Asked Questions

Which are the biggest cybersecurity companies in Finland?

WithSecure, F-Secure and SSH Communications Security are among the best known.

Does NIS2 apply in Finland?

Yes. Finland has implemented the EU NIS2 directive for essential and important entities.

Who does penetration testing in Finland?

Reversec, DNV Cyber and Truesec all provide testing services.

Conclusion

Finland combines global security brands with strong consultancies. For ongoing support, see the top managed IT services providers in Finland, and explore the Finland hub.