ADECCO PUBLISHES ITS HALF YEAR REPORT 2013

Adecco publishes its Half Year Report 2013

Zurich, Switzerland, August 9, 2013: Adecco Group, the world’s leading provider of HR solutions, is pleased to inform you that the Group’s Half Year Report 2013 is now available.

To access the Half Year Report 2013, please visit our Investor Relations website (link: http://www.adecco.com/investors/financials.aspx) in the dedicated section.

For further information please contact:

Adecco Corporate Investor Relations

Investor.relations@adecco.com or call +41 (0) 44 878 89 89

Adecco Corporate Press Office

Press.office@adecco.com or call +41 (0) 44 878 87 87

About the Adecco Group

The Adecco Group, based in Zurich, Switzerland, is the world’s leading provider of HR solutions. With over 31,000 FTE employees and around 5,200 branches, in over 60 countries and territories around the world, Adecco Group offers a wide variety of services, connecting more than 650,000 associates with over 100,000 clients every day. The services offered fall into the broad categories of temporary staffing, permanent placement, career transition and talent development, as well as outsourcing and consulting. The Adecco Group is a Fortune Global 500 company.

Adecco S.A. is registered in Switzerland (ISIN: CH0012138605) and listed on the SIX Swiss Exchange (ADEN).