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               12 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       2,910,040       1.54%      497,805      0.26%
securities
(2) Derivatives      220,001       0.12%      474,590      0.25%
(other than
options)
(3) Options and            0       0.00%            0      0.00%
agreements to
purchase/sell
Total              3,130,041       1.65%      972,395      0.51%

(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      2,401                52.3722 CHF
Purchase      13,947               52.5001 CHF
Purchase      3,865                52.3062 CHF
Purchase      12,054               52.2846 CHF
Purchase      10,242               52.0836 CHF
Purchase      798                  51.8500 CHF
Purchase      810                  51.8500 CHF
Purchase      5                    52.6250 CHF
Purchase      11                   52.6038 CHF
Purchase      965                  52.3722 CHF
Purchase      129                  52.4500 CHF
Purchase      15                   52.6250 CHF
Purchase      15,523               52.3940 CHF
Purchase      111                  52.6250 CHF
Purchase      9,176                52.3940 CHF
Purchase      316                  52.4500 CHF
Purchase      220                  52.6038 CHF
Purchase      29                   52.6038 CHF
Purchase      18,007               52.3722 CHF
Purchase      2,376                52.4500 CHF
Purchase      11                   52.6250 CHF
Purchase      19                   52.6038 CHF
Purchase      1,889                52.3722 CHF
Purchase      251                  52.4500 CHF
Sale          9,623                52.3623 CHF
Sale          9,907                52.2122 CHF
Sale          100                  33.0000 EUR
Sale          10,887               52.3521 CHF
Sale          60                   33.0000 EUR
Sale          625                  52.1007 CHF
Sale          2,043                51.8500 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          9907          52.2121
CFD            Long          10887         52.352
CFD            Long          9623          52.3623
CFD            Short         10242         52.0835
CFD            Short         12054         52.2846
CFD            Short         3865          52.3061
CFD            Short         13947         52.5001

(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                         13 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