ADECCO GROUP COMPLETES SHARE CAPITAL REDUCTION

Adecco Group completes share capital reduction

Adecco Group completes share capital reduction

July 11, 2016 INVESTORS

Adecco Group completes share capital reduction

Zurich, Switzerland, July 11, 2016: The Adecco Group, the world’s leading provider of Human Resources solutions, has cancelled 3,318,750 shares acquired under its most recent share buyback programme. The new share capital comprises 171,156,187 registered shares.

At the Annual General Meeting 2016, shareholders of Adecco Group AG approved the cancellation of 3,318,750 own shares acquired under the share buyback programme and the corresponding reduction of the Company’s share capital.

The capital reduction was registered with the Commercial Register on July 4, 2016.

Following the cancellation of shares, the share capital amounts to CHF171,156,187, divided into 171,156,187 registered shareswith a nominal value of CHF 1.- each.

For further information please contact:

Adecco Corporate Investor Relations

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

Adecco Corporate Press Office

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

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 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.

About the Adecco Group

The Adecco Group, based in Zurich, Switzerland, is the world’s leading provider of HR solutions. With more than 32,000 FTE employees and around 5,100 branches in over 60 countries and territories around the world, the Adecco Group offers a wide variety of services, connecting around 700,000 associates with our 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 Group AG is registered in Switzerland (ISIN: CH0012138605) and listed on the SIX Swiss Exchange (ADEN).