Adecco S.A. reports a shareholding of its own shares of 8.02%

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announcement.
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Zurich, Switzerland, November 20, 2009: Pursuant to art. 9 and 21 of
the Stock Exchange Ordinance-FINMA, Adecco S.A. discloses the
following:

As of November 18, 2009, Adecco S.A. is holding 8.86% of the share
capital of the company in shares and derivatives as purchase
positions (of which 8.02% are equity [registered shares]), and 14.75%
as sale positions.

For further information please refer to the attached PDF document.

Contact:
Investor Relations:
Tel: +41 44 878 89 89
E-Mail:  



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Adecco SA
Sagereistrasse 10 Glattbrugg Switzerland

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