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               09 September 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       3,048,419       1.61%      344,997      0.18%
securities
(2) Derivatives       18,423       0.01%      247,466      0.13%
(other than
options)
(3) Options and            0       0.00%            0      0.00%
agreements to
purchase/sell
Total              3,066,842       1.62%      592,463      0.31%

(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      437                  50.1145 CHF
Purchase      7,795                51.1980 CHF
Purchase      3,211                51.3576 CHF
Purchase      100                  51.2649 CHF
Purchase      10,371               51.1740 CHF
Purchase      10,099               51.1412 CHF
Purchase      866                  50.5720 CHF
Purchase      623                  50.6500 CHF
Purchase      1,777                50.6226 CHF
Purchase      1,281                51.1693 CHF
Purchase      941                  51.2806 CHF
Sale          730                  51.4077 CHF
Sale          9,073                51.1882 CHF
Sale          2,449                51.2738 CHF
Sale          9,319                51.2307 CHF
Sale          540                  51.4000 CHF
Sale          437                  51.5850 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         9073          51.1881
CFD             Long         9319          51.2307
CFD             Long         2449          51.2738
CFD             Long         540           51.4
CFD             Long         730           51.4077
CFD             Long         437           51.585
CFD             Short        437           50.1145
CFD             Short        2490          50.7675
CFD             Short        10099         51.1412
CFD             Short        10371         51.174
CFD             Short        7795          51.198
CFD             Short        100           51.2649
CFD             Short        3211          51.3576
CFD             Short        1550          51.3901

(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                         10 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