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               05 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       3,022,950       1.60%      352,507      0.19%
securities
(2) Derivatives       25,108       0.01%      239,595      0.13%
(other than
options)
(3) Options and            0       0.00%            0      0.00%
agreements to
purchase/sell
Total              3,048,058       1.61%      592,102      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      737                  48.8697 CHF
Purchase      2,268                48.5054 CHF
Purchase      40                   30.5000 EUR
Purchase      1,083                48.5141 CHF
Purchase      16,226               49.0618 CHF
Purchase      8,641                49.0405 CHF
Purchase      1,517                49.1452 CHF
Purchase      1,630                48.8893 CHF
Purchase      393                  49.4707 CHF
Sale          106                  48.9000 CHF
Sale          393                  50.1354 CHF
Sale          2,230                49.0356 CHF
Sale          14,936               48.9508 CHF
Sale          11,897               49.2114 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          106           48.9
CFD            Long          14936         48.9508
CFD            Long          2230          49.0356
CFD            Long          11897         49.2114
CFD            Long          393           50.1354
CFD            Short         2268          48.5053
CFD            Short         1083          48.514
CFD            Short         1630          48.8892
CFD            Short         2691          48.9359
CFD            Short         8641          49.0405
CFD            Short         16226         49.0618
CFD            Short         1517          49.1451
CFD            Short         393           49.4706

(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                         08 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