Holding(s) in Company

Posted 23 January 2008
Invensys PLC
23 January 2008


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 4% 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             18 January 2008
crossed or reached if different)(ii):

6. Date on which issuer notified:                                          22 January 2008

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    % of voting rights
(if possible using     Shares    Voting Rights      shares              rights
the ISIN CODE)                                      Direct         Direct    Indirect  Direct   Indirect
GB00B19DVX61        65,147,396   65,147,396     66,187,276      66,187,276             8.30%


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
66,187,276                                         8.30%



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 Predential Assurance Company Limited (a wholly owned
                                             subsidiary of Prudential plc has cross a 4% 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 18 January 2008

Percentage holdings are calculated using an issued share capital of 796,942,923
ORD 0.10 shares.
---------                                                 HOLDING        % Total Notification of
                                                                            Interests
PRUDENTIAL PLC                                           66,187,276                      8.30

REGISTERED HOLDER
JP MORGAN NOMINEES                                          710,718
MAGIM HSBC GIS NOM(UK) SALI                                 418,933
NORTRUST NOMINEE LTD A/C MHF01                              173,302
NORTRUST NOMINEE LTD A/C MHJ01                            2,236,112
NORTRUST NOMINEE LIMITED A/C MKB01                        3,979,895
NORTRUST NOMINEE LIMITED A/C MKK01                       17,500,000
NORTRUST NOMS LIMITED                                       209,850
NORTRUST NOMS LTD A/C PUF01                                 552,836
NORTRUST NOMS LIMITED A/C PUI01                              58,386
NORTRUST NOMS LIMITED A/C PUR01                           6,995,189
PPL UK EQUITY 350 PASSIVE FUND                              329,457
PPL UK EQUITY GROWTH FUND                                   817,314
PRUCLT HSBC GIS NOM(UK) PAC AC                           27,108,861
PRUCLT HSBC GIS NOM(UK) PPL AC                            3,724,925
PRUCLT HSBC GIS NOM(UK)EQBF AC                              173,647
PRUCLT HSBC GIS NOM(UK)MNBF AC                              240,728
PRUCLT HSBC GIS NOM(UK)PENE AC                              957,123



                                                           HOLDING       % Total Notification of
                                                                           Interests
M & G GROUP LIMITED                                    65,476,558                        8.21

REGISTERED HOLDER
MAGIM HSBC GIS NOM(UK) SALI                               418,933
NORTRUST NOMINEE LIMITED A/C MHF01                        173,302
NORTRUST NOMINEE LIMITED A/C MHJ01                      2,236,112
NORTRUST NOMINEE LIMITED A/C MKB01                      3,979,895
NORTRUST NOMINEE LIMITED A/C MKK01                     17,500,000
NORTRUST NOMS LIMITED                                     209,850
NORTRUST NOMS LIMITED A/C PUF01                           552,836
NORTRUST NOMS LIMITED A/C PUI01                            58,386
NORTURST NOMS LIMITED PUR01                             6,995,189
PPL UK EQUITY GROWTH FUND                                 329,457
PPL UK EQUITY GIS NOM(UK) PAC AC                          817,314
PRUCLT HSBC GIS NOM(UK) PAC AC                         27,108,861
PRUCLT HSBC GIB NOM (UK) PPL AC                         3,724,925
PRUCLT HSBC GIS NOM (UK)EQBF AC                           173,647
PRUCLT HSBC GIS NOM(UK) MNBF AC                           240,728
PRUCLT HSBC GIS NOM(UK) PENE AC                           957,123


M&G INVESTMENT MANAGEMENT                                 HOLDING       % Total Notification
LIMITED                                                                     of  Interests
                                                             65,303,256                  8.19
REGISTERED HOLDER
MAGIM HSBC GIS NOM(UK) SALI                                     418,933
NORTRUST NOMINEE LIMITED A/C MHJ01                            2,236,112
NORTRUST NOMINEE LIMITED A/C MKB01                            3,979,895
NORTRUST NOMINEE LIMITED A/C MKK01                           17,500,000
NORTRUST NOMS LIMITED                                           209,850
NORTRUST NOMS LIMITED A/C PUF01                                 552,836
NORTRUST NOMS LIMITED A/C PUI01                                  58,386
NORTURST NOMS LIMITED PUR01                                   6,995,189
PPL UK EQUITY 350 PASSIVE FUND                                  329,457
PPL UK EQUITY GROWTH FUND                                       817,314
PRUCLT HSBC GIS NOM(UK) PAC AC                               27,108,861
PRUCLT HABC GIB NOM (UK) PPL AC                               3,724,925
PRUCLT HASB GIS NOM (UK)EQBF AC                                 173,647
PRUCLT HSBC GIS NOM(UK) MNBF AC                                 240,728
PRUCLT HSBC GIS NOM(UK) PENE AC                                 957,123



M&G LIMITED                                               HOLDING      % Total Notification
                                                                           of  Interests
                                                            65,476,558                  8.21
REGISTERED HOLDER
MAGIM HSBC GIS NOM(UK) SALI                                    418,933
NORTRUST NOMINEE LIMITED A/C MHF01                             173,302
NORTRUST NOMINEE LIMITED A/C MHJ01                           2,236,112
NORTRUST NOMINEE LIMITED A/C MKB01                           3,979,895
NORTRUST NOMINEE LIMITED A/C MKK01                          17,500,000
NORTRUST NOMS LIMITED                                          209,850
NORTRUST NOMS LIMITED A/C PUF01                                552,836
NORTRUST NOMS LIMITED A/C PUI01                                 58,386
NORTURST NOMS LIMITED PUR01                                  6,995,189
PPL UK EQUITY 350 PASSIVE FUND                                 329,457
PPL UK EQUITY GROWTH FUND                                      817,314
PRUCLT HSBC GIS NOM(UK) PAC AC                              27,108,861
PRUCLT HABC GIB NOM (UK) PPL AC                              3,724,925
PRUCLT HASB GIS NOM (UK)EQBF AC                                173,647
PRUCLT HSBC GIS NOM(UK) MNBF AC                                240,728
PRUCLT HSBC GIS NOM(UK) PENE AC                                957,123






---------                                                   HOLDING        % Total Notification of
                                                                              Interests
The Prudential Assurance                                 32,399,490                      4.06
Company Limited

REGISTERED HOLDER
MAGIM HSBC GIS NOM(UK) SALI                                 418,933
PPL UK EQUITY 350 PASSIVE FUND                              329,457
PPL UK EQUITY GROWTH FUND                                   817,314
PRUCLT HSBC GIS NOM(UK) PAC AC                           27,108,861
PRUCLT HSBC GIS NOM(UK) PPL AC                            3,724,925




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