Holding(s) in Company

Invensys PLC
27 November 2007

                TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing                  
shares to which voting rights are attached:

Invensys plc

2. Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights                           x

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 Disclosure Transparency Rules

3. Full name of person(s) subject to the notification                  
obligation:

Standard Life Investments Ltd

4. Full name of shareholder(s) (if different from 3.):                        

Vidacos Nominees

5. Date of the transaction (and date on which the threshold is                
crossed or reached if different):

26 November 2007

6. Date on which issuer notified:                                             

27 November 2007

7. Threshold(s) that is/are crossed or reached:                  17%

8. Notified details:


A: Voting rights attached to shares
Class/type of      Situation previous to    Resulting situation after the triggering transaction
shares             the Triggering
                   transaction
GB00B19DVX61       Number of    Number of          Number of voting rights        % of voting rights
                   Shares       Voting
                                Rights            Direct        Indirect          Direct       Indirect


Ord GBP            129,351,880                  70,006,835         66,116,146     8.785%          8.297%
                   129,351,880
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

    136,122,981                                              17.082%


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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