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Adecco SA: SEC investigation terminated
Adecco SA announces calendar of events for the second half of 2005
March 8, 2005

Adecco SA: SEC Investigation terminated

Cheserex, Switzerland - March 8, 2005: The staff of the US Securities and Exchange Commission (SEC) has notified Adecco SA that its investigation of the Group has been terminated and that no enforcement action has been recommended.

About Adecco

Adecco SA is a Forbes 500 company and the global leader in HR Solutions.  The Adecco Group network connects up to 700,000 associates with business clients each day through its network of 30,000 employees and 6,000 offices in 71 territories 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 corporate clients and qualified associates.

The Adecco Group comprises three Divisions: Adecco Staffing, Ajilon Professional and LHH Career Services.  In Adecco Staffing, the Adecco network focuses on flexible staffing solutions for global industries in transition, including automotive, banking, electronics, logistics and telecommunications; Ajilon Professional offers an unrivalled range of specialised branded businesses; LHH Career Services encompasses our portfolio of outplacement and coaching consultancy businesses.

Adecco S.A. is registered in Switzerland (ISIN: CH0012138605) and listed on the Swiss Stock Exchange with trading on Virt-x (SWX/VIRT-X:ADEN), the New York Stock Exchange (NYSE:ADO) and Euronext Paris - Premier Marché (EURONEXT: ADE).


Adecco Corporate Investor Relations                                or +41 (0) 44 878 8884

Adecco Corporate Press Office                            or +41 (0) 44 878 8832

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. (the "Company") as of the date of this release, and we assume no duty to update any such forward-looking statements. Factors that could affect the Company's forward-looking statements include, among other things: global GDP trends in developed and emerging markets including China and India; the demand for and changes in legislation of temporary work; the assertion and resolution of US unemployment tax assessments and the French anti-trust investigation; the pace of economic recovery in various regions and the demand for temporary staffing; the resolution of the US class action litigation and ongoing related enquiries; any adverse developments in existing commercial relationships, disputes or legal proceedings andintense competition in the markets in which the Company competes.

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. Please refer to the Company's Annual Report on Form 20-F for the year ended December 28, 2003, and other reports filed with or submitted to the U.S. Securities and Exchange Commission from time to time, for a further discussion of the factors and risks associated with our business.