Holding(s) in Company

Invensys PLC
27 February 2008

                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):____________________________________________________


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

Schroders plc

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

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

25/02/2008

6. Date on which issuer notified:                                               

26/02/2007

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

From 10% - 11%

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

 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 0.10 each 79,700,852   79,700,852   N/A           N/A          88,591,508      N/A        11.12%






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


   88,591,508                                               11.12%


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


Schroder Investment Management Limited                       86,855,431 (10.90%)
Schroder Investment Management North America Limited          1,725,000 (0.22%)
Schroder &Co Limited                                             11,077 (0.001%)



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:         The Shares referred to in Section 9 are held in portfolios managed
                                    by those firms on a discretionary basis for clients under investment
                                    management agreements.

14. Contact name:                                      Steve Devany, Vice President - Communications

15. Contact telephone number:                                          020 7821 3758








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