Disclosure Of Shareholdings: UBS AG, Credit Suisse And JP Morgan

Glattbrugg, Switzerland, Dec 28, 2007 - (Hugin via ABN Newswire) - Corporate news announcement processed and transmitted by Hugin ASA. The issuer is solely responsible for the content of this announcement. ---------------------------------------------------------------------- --------------



Zurich, Switzerland, 27 December 2007: Pursuant to art. 9, 15 and 17 of the Stock Exchange Ordinance-FBC, Adecco S.A. has received the following notifications of UBS AG, Zurich, Credit Suisse, Zurich and JP Morgan, New York:

By December 01, 2007, UBS AG, Zürich, Switzerland, is holding less than 3.00% as purchase and as sale positions of the share capital of the company in shares and derivatives.

By December 01, 2007, a group consisting of Credit Suisse Group, Paradeplatz 8, P.O. Box, 8070 Zurich, Switzerland (direct shareholder), and its subsidiaries (direct shareholders) is holding 4.94% as purchase and 4.33% as sale positions of the share capital of the company in shares and derivatives of which 0.53% are equity (registered shares).

By December 19, 2007, a group consisting of a group consisting of JPMorgan Chase & Co, 270 Park Avenue, New York, NY 10017, United States, and its subsidiaries is holding 4.99% as purchase and 1.14% as sale positions of the share capital of the company in shares and derivatives of which 1.88% are equity (registered shares).

For further information please refer to the attached PDF document.

Contact: Investor Relations: Tel: +41 44 878 89 25 E-Mail: investor.relations@adecco.com

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Adecco SA Sagereistrasse 10 Glattbrugg Switzerland

WKN: 922031; ISIN: CH0012138605; Index: SLCI, SMI, SPI, SMIEXP; Listed: Main Market in SWX Swiss Exchange;


LINK: http://hugin.info/100102/R/1178697/234486.pdf

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Adecco SA

http://www.adecco.com

ISIN: CH0012138605

Stock Identifier: XSWX.ADEN

US: NYSE:ADO