Holding(s) in Company

Posted 04 June 2007
Invensys PLC
04 June 2007

                TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of                         Invensys plc
existing shares to which voting rights are attached:
2. Reason for the notification (please tick the appropriate box or boxes):
An acquisition or disposal of voting rights                                                      Yes
An acquisition or disposal of financial instruments which may result in the acquisition of
shares already issued to which voting rights are attached
An event changing the breakdown of voting rights
Other (please specify): Compliance with the Transparency Directive
3. Full name of person(s) subject to the notification                Capital Group International, Inc.
obligation:
4. Full name of shareholder(s) (if different from 3.):
5. Date of the transaction (and date on which the threshold is                  31 May 2007
crossed or reached if different):
6. Date on which issuer notified:                                               1 June 2007
7. Threshold(s) that is/are crossed or reached:                                     3%
8. Notified details:


A: Voting rights attached to shares
Class/type of    Situation previous to the Resulting situation after the triggering transaction
shares           Triggering transaction
                 Number of    Number of    Number of shares    Number of voting rights  % of voting rights
 if possible     Shares       Voting
using the ISIN                Rights       Direct  Indirect    Direct    Indirect       Direct     Indirect
CODE
Ord GBP 0.10     23,964,310   23,964,310           23,819,305            23,819,305                2.9915%
each


B: Financial Instruments
Resulting situation after the triggering transaction
Type of financial    Expiration date Exercise/ Conversion      Number of voting rights    % of voting rights
instrument                           Period/ Date              that may be acquired if
                                                               the instrument is
                                                               exercised/ converted.
        N/A


Total (A+B)
Number of voting rights                           % of voting rights
23,819,305                                               2.9915%


9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively
held, if applicable:






Proxy Voting:
10. Name of the proxy holder:                                                        N/A
11. Number of voting rights proxy holder will cease to hold:                         N/A
12. Date on which proxy holder will cease to hold voting rights:                     N/A


13. Additional information:
14. Contact name:                                      Steve Devany, Vice President - Communications
15. Contact telephone number:                                          020 7821 3758





As of 31 May 2007

Invensys plc


                                                                       Number of        Percent of
                                                                       Shares           Outstanding


Capital Group International, Inc. ("CGII") holdings                   23,819,305        2.992%


Holdings by CGII Management Companies and Funds:

________________________________________________________________________________


?                                 Capital Guardian Trust Company         721,671        0.091%
                                                                   
?                                 Capital International Limited       21,507,579        2.701%

?                                 Capital International S.A.             918,615        0.115%

?                                 Capital International, Inc.            671,440        0.084%




                                   Schedule A


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