ADECCO HAS BEEN INFORMED THAT JACOBS GROUP COMPLETED THE PLACEMENT OF APPROXIMATELY 16.0% OF ADECCO ISSUED SHARES

Adecco S.A. has been informed that the Jacobs group (comprising Jacobs family members, Jacobs Holding AG, Jacobs Foundation and other affiliated entities) completed the previously announced placement to the market of 30.2 million registered shares of Adecco S.A. corresponding to approximately 16.0% of the company.