Rule 8.3 - ADECCO SA

FORM 8.3

    DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE
              (Rule 8.3 of the City Code on Takeovers and Mergers)


1.   KEY INFORMATION

Name of person dealing        BARCLAYS PLC
(Note 1)
Company dealt in              ADECCO SA
Class of relevant security    CHF1(REGD)
to which the dealings being
disclosed relate (Note 2)
Date of dealing               21 August 2008

2.   INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE

(a)  Interests and short positions (following dealing) in the class of relevant
security dealt in (Note 3)

                            Long                     Short

                      Number       (%)         Number       (%)

(1) Relevant       2,943,446       1.56%      402,045      0.21%
securities
(2) Derivatives       56,929       0.03%      223,153      0.12%
(other than
options)
(3) Options and            0       0.00%            0      0.00%
agreements to
purchase/sell
Total              3,000,375       1.59%      625,198      0.33%


(b)  Interests and short positions in relevant securities of the company, other
     than the class dealt in (Note 3)

Class of                    Long                     Short
relevant
security:

                  Number              (%)   Number              (%)

(1) Relevant
securities

(2) Derivatives
(other than
options)

(3) Options and
agreements to
purchase/sell

Total


  (c)  Rights to subscribe (Note 3)

Class of relevant security:   Details



3.   DEALINGS (Note 4)

  (a)  Purchases and sales

Purchase/sale Number of Securities Price per unit
                                   (GBP)
Purchase      200                  49.8600 CHF
Purchase      3,811                50.1203 CHF
Purchase      261                  49.9475 CHF
Purchase      1,788                49.8700 CHF
Purchase      12,810               49.9417 CHF
Purchase      305                  49.8577 CHF
Purchase      181                  49.8600 CHF
Purchase      2,712                49.8600 CHF
Purchase      425                  49.7572 CHF
Purchase      930                  49.7572 CHF
Purchase      1,345                49.7572 CHF
Purchase      7,391                49.7572 CHF
Sale          2,305                49.8600 CHF
Sale          3,240                49.8600 CHF
Sale          1,788                49.8701 CHF
Sale          20,388               50.0238 CHF
Sale          4,513                49.9596 CHF
Sale          802                  49.8600 CHF
Sale          1,788                49.8700 CHF
Sale          17,924               50.0613 CHF
Sale          305                  50.2854 CHF
Sale          13,592               50.0464 CHF

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          4513          49.9595
CFD            Long          1265          49.9792
CFD            Long          20388         50.0238
CFD            Long          13592         50.0463
CFD            Long          17924         50.0613
CFD            Long          305           50.2854
CFD            Short         305           49.8577
CFD            Short         12810         49.9416
CFD            Short         261           49.9475
CFD            Short         3811          50.1203

(c)  Options transactions in respect of existing securities

(i)  Writing, selling, purchasing or varying

Product name,   Writing,          Number of          Exercise  Type, e.g.      Expiry   Option money
e.g. call       selling,          securities to      price     American,       date     paid/received
option          purchasing,       which the option             European etc.            per unit (GBP)
                varying etc.      relates (GBP)


(ii) Exercising

Product name, e.g.  Number of           Exercise price per
call option         securities          unit (Note 5)




(d)  Other dealings (including new securities) (Note 4)


Nature of transaction Details           Price per unit
(Note 8)                                (if applicable)
                                        (Note 5)




4.   OTHER INFORMATION


Agreements, arrangements or understandings relating to options or derivatives


Full details of any agreement, arrangement or understanding between the
person disclosing and any other person relating to the voting rights of
any relevant securities under any option referred to on this form or
relating to the voting rights or future acquisition or disposal of any
relevant securities to which any derivative referred to on this form is
referenced.  If none, this should be stated.

None


Is a Supplemental Form 8 attached? (Note 9)                 NO


Date of disclosure                         22 August 2008
Contact name                               Geoff Smith
Telephone number                           020 7116 2913
If a connected EFM, name of
offeree/offeror with which connected
If a connected EFM, state nature of
connection (Note 10)


Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk