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               22 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       2,956,607       1.56%      395,240      0.21%
securities
(2) Derivatives       58,458       0.03%      233,271      0.12%
(other than
options)
(3) Options and            0       0.00%            0      0.00%
agreements to
purchase/sell
Total              3,015,065       1.59%      628,511      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      12,955               49.9810 CHF
Purchase      414                  49.8447 CHF
Purchase      2,008                50.0638 CHF
Purchase      524                  49.7684 CHF
Purchase      9,402                49.8189 CHF
Purchase      3,247                49.9215 CHF
Purchase      389                  49.8447 CHF
Purchase      4,870                49.7177 CHF
Purchase      212                  50.2500 CHF
Sale          4,738                49.6417 CHF
Sale          568                  49.5823 CHF
Sale          643                  49.8525 CHF
Sale          1,653                49.7000 CHF
Sale          3,920                49.8769 CHF
Sale          2,837                49.8483 CHF
Sale          461                  50.2500 CHF
Sale          2,946                50.2500 CHF
Sale          367                  50.2500 CHF
Sale          2,727                49.7847 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          568          49.5822
CFD            Long          4738         49.6417
CFD            Long          2727         49.7847
CFD            Long          5834         49.8405
CFD            Long          2837         49.8482
CFD            Long          643          49.8525
CFD            Long          3920         49.8768
CFD            Long          7531         49.9019
CFD            Short         4870         49.7176
CFD            Short         524          49.7684
CFD            Short         9402         49.8189
CFD            Short         3247         49.9214
CFD            Short         12955        49.9809
CFD            Short         2008         50.0638

(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                         26 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