Holding(s) in Company

Posted 16 November 2007
Invensys PLC
16 November 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                                                      (X)
An acquisition or disposal of financial instruments which may result in the acquisition of      (n/a)
shares already issued to which voting rights are attached
An event changing the breakdown of voting rights                                                (n/a)
Other (please specify):____________________________________________________                     (n/a)
3. Full name of person(s) subject to the notification                          Schroders plc
obligation:
4. Full name of shareholder(s) (if different from 3.):
5. Date of the transaction (and date on which the threshold is                  15/11/2007
crossed or reached if different):
6. Date on which issuer notified:                                               16/11/2007
7. Threshold(s) that is/are crossed or reached:                                     10%
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 40,494,007   40,494,007   N/A           N/A          79,700,852      N/A        10%






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
                   79,700,852                                                 10%


9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively
held, if applicable:
Schroder Investment Management Limited                                                    77,964,775 (9.78%)
Schroder Invenstment 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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