The 2015 Adecco General Shareholders Meeting will resolve on the reduction of share capital through cancellation of the remaining repurchased shares which were not cancelled by the General Shareholders Meeting 2014.

Further and as anticipated in Adecco’s Q3 2014 press release, Adecco launches today a new share buyback programme of up to EUR 250 million which shall be completed latest by November 10, 2017.

The new share buyback will also be executed on the existing second trading line on SIX Swiss Exchange. Repurchased shares will be cancelled after formal shareholder approval. Shares purchased on the second trading line are subject to the Swiss federal withholding tax of 35% on the difference between the buyback price of the Adecco share and its nominal value of CHF 1.00.

For further information please contact:

Adecco Corporate Investor Relations or call +41 (0) 44 878 89 89

Adecco Corporate Press Office or call +41 (0) 44 878 87 87

Financial Agenda

•   Q4 2014 results

March 11, 2015

•   Annual General Meeting

April 21, 2015

•   Q1 2015 results

May 7, 2015

•   Q2 2015 results

August 11, 2015

•   Q3 2015 results

November 5, 2015

Forward-looking statements

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 S.A. 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 affecting 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.