INVENSYS PLC

                                                                 (the "Company")

VOTING RIGHTS AND CAPITAL

In conformity with the Disclosure and Transparency Rules, we would like to notify the market of the following:

At close of business on 30 June 2008 the Company's issued capital consisted of 797,203,933

Ordinary shares of 10p each. No shares were held in treasury at the date of announcement.

Therefore, the total number of current voting rights in the Company was 797,203,933.

The above figure (797,203,933 Ordinary shares) may be used by shareholders as the denominator for the calculation by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company under the FSA's Disclosure and Transparency Rules.

Name of contact and telephone number for queries: Steve Devany, Vice President, Communications 020 7821 3758

Name of Company official responsible for making notification: Jessica Wildgoose, Secretarial Assistant. 

Date of notification: 04 July 2008

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