ADECCO HAS RECEIVED THE DECISION ON THE FRENCH ANTITRUST CASE

Adecco has received the decision on the French antitrust case

Zurich, Switzerland, February 2, 2009: Today, Adecco Group, the worldwide leader in Human Resource services has received the decision of the French Competition Council (Conseil de la Concurrence) on the antitrust proceedings involving Adecco and Adia France and its main competitors in France. The decision imposes a fine of EUR 34.2 million. The Company will carefully analyse the decision before taking a position in terms of a potential appeal.

Adecco Group has received the decision of the French Competition Council (Conseil de la Concurrence) on the antitrust proceedings involving Adecco and Adia France and its main competitors in France.  The decision imposes a fine of EUR 34.2 million. The Company will carefully analyse the decision before taking a final position in terms of a potential appeal.

A further announcement on the matter will be made as and when appropriate.

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 of temporary work; intense competition in the markets in which the Company competes; changes in the Company's ability to attract and retain qualified temporary personnel; the final resolution of the French anti-trust procedure and any adverse developments in existing commercial relationships, disputes or legal and tax proceedings.

About Adecco

Adecco S.A. is a Fortune Global 500 company and the global leader in HR services. The Adecco Group network connects over 700,000 associates with clients each day through its network of over 36,500 employees (FTEs) and over 6,700 offices in over 60 countries andterritories around the world. Registered in Switzerland, and managed by a multinational team with expertise in markets spanning the globe, the Adecco Group delivers an unparalleled range of flexible staffing and career resources to clients and associates.

Adecco S.A. is listed on the SIX Swiss Exchange with trading also on SWX Europe Limited (symbol ADEN, ISIN CH0012138605) and on the Euronext Paris (symbol ADE, Euronext Code CH0012138605).

Contacts:

Adecco Corporate Press Office                                          

press.office@adecco.com ; Tel. +41 (0) 44 878 87 87

Adecco Corporate Investor Relations

investor.relations@adecco.com ; Tel. +41 (0) 44 878 89 89