WithSecure logo

WithSecure

Helsinki-headquartered Finnish cybersecurity firm with roots dating to 1988, offering CREST-accredited penetration testing and deep expertise in EU regulatory compliance including GDPR, NIS 2, and TIBER-EU.

Featured in: Best CREST Pen Testing Companies

Headquarters
Helsinki, Finland
Founded
1988
Team Size
500+
Geography
Global
Markets
Europe, UK, Global, APAC
Last verified: Sept 2026

Key facts

  • Holds CREST and ISO 27001 accreditations.
  • Founded in 1988.
  • Headquartered in Helsinki, Finland.
  • Team of 500+ security professionals.
  • Delivers 10 penetration testing services.
  • Typical response time: 1-2 weeks.
  • Operates globally, with delivery across Europe, the UK, and APAC.
  • Specialises in European Regulatory Compliance, TIBER-EU Testing, and Managed Detection and Response.
  • Compliance expertise across GDPR, NIS 2, DORA, TIBER-EU, and ISO 27001.

About

WithSecure, formerly known as F-Secure Business, is a Helsinki-headquartered Finnish cybersecurity company tracing its roots to 1988 as one of the first antivirus companies in the world. It demerged from F-Secure in 2022 to focus exclusively on corporate and enterprise security, providing comprehensive penetration testing and security consulting services alongside their enterprise protection products.

Accreditations

CRESTISO 27001
SECFORCE logo

SECFORCE

CBEST-approved, threat-led red teaming for UK financial services.

  • Holds CREST, CBEST, STAR, ISO 27001, ISO 9001, and Cyber Essentials accreditations.
  • In business since 2008 (Companies House 06488355); CREST-accredited for penetration testing since 2011.
CRESTCBESTSTARISO 27001
View SECFORCE

Methodologies

OWASPCRESTTIBER-EUPTES

Team Activity

Active in CTF competitions
AV-TEST Best Protection Award
Speaker: Black Hat Europe
Speaker: Disobey
Speaker: T2 Conference

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