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Tiina Karoliina Sarhimaa
Director of Finance/CFO at
WITHSECURE OYJ
Profile
Tiina Karoliina Sarhimaa is currently Director at F-Secure (UK) Ltd. since 2021, Managing Director at F-Secure GmbH, Director at Finnish Information Security Cluster - Kyberala ry starting 2025, Director at F-Secure Digital Assurance Ltd. since 2018, Director at F-Secure BV (Belgium) since 2020, and Chief Financial & Legal Officer at WithSecure Corp.
starting 2026.
Former roles include Director-Legal & Compliance at Nokia Oyj from 2017 to 2018, Secretary, Director, General Counsel & Head-Legal at Comptel Oyj from 2004 to 2017, and Legal Counsel at OMX AB from 2002 to 2003.
Tiina Karoliina Sarhimaa active positions
| Companies | Position | Start |
|---|---|---|
| WITHSECURE OYJ | Director of Finance/CFO | 01/01/2026 |
F-Secure (UK) Ltd.
 F-Secure (UK) Ltd. Miscellaneous Commercial ServicesCommercial Services Provides Mobile Security Solutions. | Director/Board Member | 01/10/2021 |
F-Secure GmbH
 F-Secure GmbH Miscellaneous Commercial ServicesCommercial Services Provides security services. | Chief Executive Officer | - |
F-Secure BV (Belgium)
 F-Secure BV (Belgium) Electronics DistributorsDistribution Services Wholesales computers, peripherals and software | Director/Board Member | 01/11/2020 |
F-Secure Digital Assurance Ltd.
 F-Secure Digital Assurance Ltd. Miscellaneous Commercial ServicesCommercial Services Provides digital security services | Director/Board Member | 02/11/2018 |
Finnish Information Security Cluster - Kyberala ry
 Finnish Information Security Cluster - Kyberala ry The Finnish Information Security Cluster - Kyberala ry is a Finnish association that aims to enhance competitiveness, operational conditions, and information and digital security within Finland and the EU. The private company is based in Helsinki, Finland. It brings together companies, foundations, and individuals active in the cybersecurity sector, offering membership options for both full members and supporters. Kyberala ry organizes seminars, networking events, and working groups focused on cybersecurity themes such as industrial resilience, business continuity, skills development, growth, internationalization, defense, and security. The association supports member companies in expanding internationally through networking, coaching for EU-funded projects, joint trade fair participation, and collaboration with the public sector to raise cyber awareness. It maintains a directory of Finnish cybersecurity products and services categorized according to the NIST Cybersecurity Framework 2.0, supporting compliance with regulations and structured risk management. Kyberala ry operates Cyberlab Oy, a non-profit subsidiary that helps companies and public sector entities improve cyber resilience through events, training, and collaborative projects. The association follows strict data protection practices to ensure responsible handling of personal data. | Director/Board Member | 01/01/2025 |
Former positions of Tiina Karoliina Sarhimaa
| Companies | Position | End |
|---|---|---|
| NOKIA OYJ | Compliance Officer | 01/01/2018 |
| COMPTEL OYJ | Director/Board Member | 01/10/2017 |
OMX AB
 OMX AB Investment Banks/BrokersFinance Owns and operates security exchanges and clearing organizations | General Counsel | 01/12/2003 |
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
57
1st degree connections
9
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 9 |
|---|---|
Nokia Oyj
 Nokia Oyj Telecommunications EquipmentElectronic Technology Provides network infrastructure, technology and software services | Electronic Technology |
WithSecure Corp.
 WithSecure Corp. Packaged SoftwareTechnology Services Develops AI powered cybersecurity software solutions | Technology Services |
OMX AB
OMX AB Investment Banks/BrokersFinance Owns and operates security exchanges and clearing organizations | Finance |
Comptel Oyj
 Comptel Oyj Packaged SoftwareTechnology Services Provides telecom software and services | Technology Services |
F-Secure (UK) Ltd.
F-Secure (UK) Ltd. Miscellaneous Commercial ServicesCommercial Services Provides Mobile Security Solutions. | Commercial Services |
F-Secure GmbH
F-Secure GmbH Miscellaneous Commercial ServicesCommercial Services Provides security services. | Commercial Services |
Finnish Information Security Cluster - Kyberala ry
Finnish Information Security Cluster - Kyberala ry The Finnish Information Security Cluster - Kyberala ry is a Finnish association that aims to enhance competitiveness, operational conditions, and information and digital security within Finland and the EU. The private company is based in Helsinki, Finland. It brings together companies, foundations, and individuals active in the cybersecurity sector, offering membership options for both full members and supporters. Kyberala ry organizes seminars, networking events, and working groups focused on cybersecurity themes such as industrial resilience, business continuity, skills development, growth, internationalization, defense, and security. The association supports member companies in expanding internationally through networking, coaching for EU-funded projects, joint trade fair participation, and collaboration with the public sector to raise cyber awareness. It maintains a directory of Finnish cybersecurity products and services categorized according to the NIST Cybersecurity Framework 2.0, supporting compliance with regulations and structured risk management. Kyberala ry operates Cyberlab Oy, a non-profit subsidiary that helps companies and public sector entities improve cyber resilience through events, training, and collaborative projects. The association follows strict data protection practices to ensure responsible handling of personal data. | |
F-Secure Digital Assurance Ltd.
F-Secure Digital Assurance Ltd. Miscellaneous Commercial ServicesCommercial Services Provides digital security services | Commercial Services |
F-Secure BV (Belgium)
F-Secure BV (Belgium) Electronics DistributorsDistribution Services Wholesales computers, peripherals and software | Distribution Services |
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- Tiina Karoliina Sarhimaa
