ADECCO GROUP ANNOUNCES APPOINTMENT OF DANIELA SEABROOK AS GROUP CHIEF HR OFFICER AND MEMBER OF THE EXECUTIVE COMMITTEE

The Adecco Group announces today the appointment of Daniela Seabrook as Chief Human Resources Officer and member of the Executive Committee, effective January 1, 2024. Daniela brings to the Group a wealth of international HR leadership experience, with a particular focus on talent, culture, change management and organisational effectiveness. She was most recently Chief Human Resources Officer at Philips, and previously, Daniela spent over 12 years at Syngenta, including as Group Head People and Organisational Development.

Daniela succeeds Gordana Landen, who will retire on January 31, 2024. Gordana has served as Chief Human Resources Officer of the Group since January 2019 and has been instrumental in improving the Company’s talent management processes and strengthening its commitment to a diverse and inclusive culture. The Group thanks Gordana for her tireless leadership in building its strong HR foundation.

About the Adecco Group

The Adecco Group is the world’s leading talent company. Our purpose is making the future work for everyone. Through our three global business units - Adecco, Akkodis and LHH - across 60 countries, we enable sustainable and lifelong employability for individuals, deliver digital and engineering solutions to power the Smart Industry transformation and empower organisations to optimise their workforces. The Adecco Group leads by example and is committed to an inclusive culture, fostering sustainable employability, and supporting resilient economies and communities. The Adecco Group AG is headquartered in Zurich, Switzerland (ISIN: CH0012138605) and listed on the SIX Swiss Exchange (ADEN).

Important notice about forward-looking information

Information in this release may involve guidance, expectations, beliefs, plans, intentions, or strategies regarding the future. These forward-looking statements involve risks and uncertainties. All forward-looking statements included in this release are based on information available to Adecco Group AG as of the date of this release, and we assume no duty to update any such forward-looking statements. The forward-looking statements in this release are not guarantees of future performance and actual results could differ materially from our current expectations. Numerous factors could cause or contribute to such differences. Factors that could affect the Company’s forward-looking statements include, among other things: global GDP trends and the demand for temporary work; changes in regulation of temporary work; intense competition in the markets in which the Company operates; integration of acquired companies; changes in the Company’s ability to attract and retain qualified internal and external personnel or clients; the potential impact of disruptions related to IT; any adverse developments in existing commercial relationships, disputes or legal and tax proceedings.

For further information on The Adecco Group:

The Adecco Group Press Office:

investorrelations@adeccogroup.com

media@adeccogroup.com

+41 (0) 44 878 87 87