Holding(s) in Company

Posted 09 November 2007
Invensys PLC
09 November 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): A Purchase of shares has caused subsidiaries of Prudential plc to    X
cross 3% triggering this notification.

3. Full name of person(s) subject to the notification             Prudential plc group of companies
   obligation(i):

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

5. Date of the transaction (and date on which the threshold is             07 November 2007
crossed or reached if different)(ii):

6. Date on which issuer notified:                                          09 November 2007

7. Threshold(s) that is/are crossed or reached:                              See item 13

8. Notified details:










A: Voting rights attached to shares
Class/type of       Situation previous to the   Resulting situation after the triggering transaction(iii)
shares              Triggering transaction
                     Number of     Number of       Number of    Number of voting rights     % of voting
(if possible using     Shares    Voting Rights      shares                                    rights
the ISIN CODE)                                      Direct          Direct     Indirect   Direct  Indirect
GB00B19DVX61        44,831,892   44,831,892     45,367,602      45,367,602               5.69%


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


Total (A+B)
Number of voting rights                            % of voting rights
45,367,602                                         5.69%











9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively
held, if applicable:
Prudential plc (parent Company)

M&G Group Limited (wholly owned subsidiary of Prudential plc)

M&G Limited (wholly owned subsidiary of M&G Group Limited)

M&G Investment Management Limited (wholly owned subsidiary of M&G Limited)

The Prudential Assurance Company Limited (a wholly owned subsidary of Prudential plc)




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 Prudential Assurance Company Limited (a wholly owned
                                             subsidary of Prudential plc) has crossed a 3% notifiable
                                             interest triggering this notification.
14. Contact name:                            Steve Devany

                                             Head of Corporate Communications
15. Contact telephone number:                0207 821 3758





--------------------------


Notifiable Position Report for INVENSYS ORD GBP 0.10 as at 17 October 2007

Percentage holdings are calculated using an issued share capital of 796,798,875
ORD 0.10 shares.
---------                                            HOLDING        % Total Notification of
                                                                            Interests
PRUDENTIAL PLC                                           45,367,602                      5.69

REGISTERED HOLDER
JP MORGAN NOMINEES                                          550,192
MAGIM HSBC GIS NOM(UK) SALI                                 330,366
NORTRUST NOMINEE LTD A/C MHF01                              173,302
NORTRUST NOMINEE LTD A/C MHJ01                            2,236,112
NORTRUST NOMINEE LIMITED A/C MKB01                        1,693,944
NORTRUST NOMINEE LIMITED A/C MKK01                        9,503,327
NORTRUST NOMS LIMITED                                       159,574
NORTRUST NOMS LTD A/C PUF01                                 462,425
NORTRUST NOMS LIMITED A/C PUI01                              33,424
NORTRUST NOMS LIMITED A/C PUR01                           5,356,616
PRUCLT HSBC GIS NOM(UK) PAC AC                           21,125,696
PRUCLT HSBC GIS NOM(UK) PPL AC                            2,588,897
PRUCLT HSBC GIS NOM(UK)EQBF AC                              149,856
PRUCLT HSBC GIS NOM(UK)MNBF AC                              184,889
PRUCLT HASB GIS NOM(UK)PENE AC                              818,982



                                                     HOLDING       % Total Notification of
                                                                           Interests
M & G GROUP LIMITED                                    44,817,410                        5.62

REGISTERED HOLDER
MAGIM HSBC GIS NOM(UK) SALI                               330,366
NORTRUST NOMINEE LIMITED A/C MHF01                        173,302
NORTRUST NOMINEE LIMITED A/C MHJ01                      2,236,112
NORTRUST NOMINEE LIMITED A/C MKB01                      1,693,944
NORTRUST NOMINEE LIMITED A/C MKK01                      9,503,327
NORTRUST NOMS LIMITED                                     159,574
NORTRUST NOMS LIMITED A/C PUF01                           462,425
NORTRUST NOMS LIMITED A/C PUI01                            33,424
NORTURST NOMS LIMITED PUR01                             5,356,616
PRUCLT HSBC GIS NOM(UK) PAC AC                         21,125,696
PRUCLT HABC GIB NOM (UK) PPL AC                         2,588,897
PRUCLT HASB GIS NOM (UK)EQBF AC                           149,856
PRUCLT HSBC GIS NOM(UK) MNBF AC                           184,889
PRUCLT HSBC GIS NOM(UK) PENE AC                           818,982


M&G INVESTMENT MANAGEMENT                                 HOLDING       % Total Notification
LIMITED                                                                     of  Interests
                                                             44,644,108                  5.60
REGISTERED HOLDER
MAGIM HSBC GIS NOM(UK) SALI                                     330,366
NORTRUST NOMINEE LIMITED A/C MHJ01                            2,236,112
NORTRUST NOMINEE LIMITED A/C MKB01                            1,693,944
NORTRUST NOMINEE LIMITED A/C MKK01                            9,503,327
NORTRUST NOMS LIMITED                                           159,574
NORTRUST NOMS LIMITED A/C PUF01                                 462,425
NORTRUST NOMS LIMITED A/C PUI01                                  33,424
NORTURST NOMS LIMITED PUR01                                   5,356,616
PRUCLT HSBC GIS NOM(UK) PAC AC                               21,125,696
PRUCLT HABC GIB NOM (UK) PPL AC                               2,588,897
PRUCLT HASB GIS NOM (UK)EQBF AC                                 149,856
PRUCLT HSBC GIS NOM(UK) MNBF AC                                 184,889
PRUCLT HSBC GIS NOM(UK) PENE AC                                 818,982



M&G LIMITED                                               HOLDING      % Total Notification
                                                                           of  Interests
                                                            44,817,410                  5.62
REGISTERED HOLDER
MAGIM HSBC GIS NOM(UK) SALI                                    330,366
NORTRUST NOMINEE LIMITED A/C MHF01                             173,302
NORTRUST NOMINEE LIMITED A/C MHJ01                           2,236,112
NORTRUST NOMINEE LIMITED A/C MKB01                           1,693,944
NORTRUST NOMINEE LIMITED A/C MKK01                           9,503,327
NORTRUST NOMS LIMITED                                          159,974
NORTRUST NOMS LIMITED A/C PUF01                                462,425
NORTRUST NOMS LIMITED A/C PUI01                                 33,424
NORTURST NOMS LIMITED A/C PUR01                              5,356,616
PRUCLT HSBC GIS NOM(UK) PAC AC                              21,125,696
PRUCLT HABC GIB NOM (UK) PPL AC                              2,588,897
PRUCLT HASB GIS NOM (UK)EQBF AC                                149,856
PRUCLT HSBC GIS NOM(UK) MNBF AC                                184,889
PRUCLT HSBC GIS NOM(UK) PENE AC                                818,982
















---------                                            HOLDING        % Total Notification of
                                                                            Interests
The Prudential Assurance                                 24,044,959                      3.01
Company Limited

REGISTERED HOLDER
MAGIM HSBC GIS NOM(UK) SALI                                 330,366
PRUCLT HSBC GIS NOM(UK) PAC AC                           21,125,696
PRUCLT HSBC GIS NOM(UK) PPL AC                            2,588,897




                      This information is provided by RNS
            The company news service from the London Stock Exchange