WithSecure Oyj - Company Profile

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WithSecure Oyj: Executives

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The following section provides information on WithSecure Oyj’s senior management, executives, CEO and key decision makers and their roles in the organization. For more insight into WithSecure Oyj's management and employees, unlock the full data with our company analytics monitoring tool.

Executives

Risto Siilasmaa

Chairman Executive Board Since: 2006 Age: 59

Mr. Risto Siilasmaa has been the Chairman of the company since 2006. Prior to this, he served as the President and Chief Executive Officer of the company from 1988 to 2006. He also served as the Vice Chairman from 2017 to 2018 and as a Member of the Board from 2013 to 2016 at Finnish Industries. Earlier, he served as the Chairman from 2012 to 2020; Interim Chief Executive Officer from 2013 to 2014, and Member of the Board from 2008 to 2012 at Nokia Corp. Previously, he served as the Chairman from 2016 to 2018, and Vice-Chairman from 2013 to 2015 at The Federation of Finnish Technology Industries.

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Antti Koskela

President; Chief Executive Officer Senior Management Since: 2024 Age: 54

Mr. Antti Koskela has been the President and Chief Executive Officer of the company since June 2024. Prior to this, he served as the Interim Chief Executive Officer of the company since April 2024. He also served as the Chief Product Officer of the company since 2021.

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Xavier Carpentier

Chief Financial Officer Senior Management Since: 2026

Mr. Xavier Carpentier has been the Chief Financial Officer of the company since August 2026. Previously, he served as Vice President of Finance for Basware Ltd. Prior to this, he worked at Vincit, Fira, and Microsoft.

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Tiina Sarhimaa

Chief Legal Officer Senior Management

Ms. Tiina Sarhimaa is the Chief Legal Officer of the company. Previously, she served as Interim Chief Financial Officer of the company.

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Charlotte Guillou

Chief Culture and Performance Officer Senior Management Since: 2025 Age: 47

Ms. Charlotte Guillou has been the Chief Culture and Performance Officer of the company since 2025. Previously, she held several human resources positions at OP Financial Group from 2018 to 2021; HR and Finance positions at KONE Corp. Prior to this, she served as the Country Manager North at Scan-Horse A/S from 2017 to 2018. She also held several leadership roles in human resources at Fiskars Group from 2013 to 2017; and at Nokia Corp from 2007 to 2012. Earlier, Ms. Guillou worked as the Management Consultant at Deloitte Finland from 2004 to 2007; HRD Consultant at Psykologitoimisto Cresco from 2000 to 2003.

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