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               29 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       3,026,193       1.60%      376,535      0.20%
securities
(2) Derivatives       76,660       0.04%      271,282      0.14%
(other than
options)
(3) Options and            0       0.00%            0      0.00%
agreements to
purchase/sell
Total              3,102,853       1.64%      647,817      0.34%


(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      944                  51.9000 CHF
Purchase      1,044                51.9150 CHF
Purchase      530                  52.1613 CHF
Purchase      5,272                52.0451 CHF
Purchase      1,135                52.1922 CHF
Purchase      1,461                51.9000 CHF
Purchase      316                  51.9000 CHF
Purchase      27                   52.0506 CHF
Purchase      157                  51.8927 CHF
Purchase      16,345               52.0380 CHF
Purchase      82                   52.0506 CHF
Purchase      749                  52.0839 CHF
Purchase      133                  52.0506 CHF
Purchase      1,527                51.9000 CHF
Purchase      760                  51.8927 CHF
Purchase      334                  52.0135 CHF
Purchase      9,304                51.9000 CHF
Purchase      906                  51.9000 CHF
Purchase      641                  52.0839 CHF
Purchase      7,486                52.0135 CHF
Purchase      1,223                51.9000 CHF
Purchase      572                  51.9000 CHF
Purchase      469                  51.8927 CHF
Sale          4,056                52.0867 CHF
Sale          929                  52.0500 CHF
Sale          524                  52.0356 CHF
Sale          353                  52.0500 CHF
Sale          316                  51.9000 CHF
Sale          1,790                52.0515 CHF
Sale          1,527                51.9000 CHF
Sale          944                  51.9000 CHF
Sale          572                  51.9000 CHF
Sale          1,461                51.9000 CHF
Sale          460                  52.0445 CHF
Sale          2,610                51.9073 CHF
Sale          906                  51.9000 CHF
Sale          9,304                51.9000 CHF
Sale          1,223                51.9000 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          524           52.0355
CFD            Long          353           52.05
CFD            Long          1790          52.0515
CFD            Long          4056          52.0866
CFD            Short         1044          51.915
CFD            Short         16345         52.038
CFD            Short         5272          52.0451
CFD            Short         530           52.1613
CFD            Short         1135          52.1922

(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                         01 September 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