Blocklisting Interim Review

Invensys PLC
25 March 2008

                               BLOCKLISTING RETURN


Information provided on this form must be typed or printed electronically.

To:  The FSA

Date: 25 March 2007


1. Name of applicant

Invensys plc


2. Name of scheme

Invensys Savings Related Share Option Scheme


3. Period of return

From      3 August 2007                              To     2 February 2008


4. Balance under scheme from previous return

966,991 Ordinary shares of nominal value 10p each


5. The amount by which the block scheme has been increased, if the scheme has
been increased since the date of the last return

n/a


6. Number of securities issued/allotted under scheme during period

529,391 Ordinary shares of nominal value 10p each


7. Balance under scheme not yet issued/allotted at end of period

437,600 Ordinary shares of nominal value 10p each


8. Number and class of securities originally listed and the date of admission

10,000,000 ordinary shares of 1p each, admitted on 21 March 2005


9. Total number of securities in issue at the end of the period

767,033,750 Ordinary shares of nominal value 10p each


Name of contact                 Steve Devany

Address of contact              Invensys plc, Portland House, Bressenden Place, 
                                London SW1E 5BF

Telephone number of contact     020 7821 3758

Signed by .........................................

suitably experienced employee
for and on behalf of


Name of applicant: Invensys plc

If you knowingly or recklessly give false or misleading information you may be
liable to prosecution.


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