Holding(s) in Company

Posted 28 March 2007
Invensys PLC
28 March 2007

                TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing                  Invensys plc
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                                                       (  )
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): Initial disclosure under the Financial Services Authority's               (X)
Disclosure Transparency Rules
3. Full name of person(s) subject to the notification                  Standard Life Investments Ltd
obligation:
4. Full name of shareholder(s) (if different from 3.):                        Vidacos Nominees
5. Date of the transaction (and date on which the threshold is     Initial disclosure as at 23 March 2007
crossed or reached if different):
6. Date on which issuer notified:                                              27 March 2007
7. Threshold(s) that is/are crossed or reached:                   Direct voting rights exceed 7%, indirect
                                                                  voting rights exceed 7% and total voting
                                                                             rights exceed 14%
8. Notified details:                                               Initial disclosure under the Financial
                                                                Services Authority's Disclosure Transparency
                                                                                   Rules


A: Voting rights attached to shares
Class/type of     Situation previous to  Resulting situation after the triggering transaction
shares            the Triggering
                  transaction
 if possible      Number of   Number of  Number of     Number of voting rights     % of voting rights
using the ISIN    Shares      Voting     shares
CODE                          Rights     Direct        Direct        Indirect      Direct       Indirect
Ord GBP           Initial disclosure     59,901,770     59,901,770    57,513,994   7.523%          7.223%

0.10

GB00B19DVX61


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.



Total (A+B)
Number of voting rights                           % of voting rights
                   117,415,764                                              14.746%


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


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






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