Notifications of Major Interests in Shares

Holding(s) in Company

1: Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

Invensys plc

2: Reason for notification (yes/no)
An acquisition or disposal of voting rights		yes
An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached		no
An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments		no
An event changing the breakdown of voting rights		no
Other (please specify):		no

3. Full name of person(s) subject to the notification obligation:	Standard Life Investments Ltd
4. Full name of shareholder(s) (if different from 3.):	Vidacos Nominees
5. Date of the transaction (and date on which the threshold is crossed or reached):	20 April 2010
6. Date on which issuer notified:	21 April 2010
7. Threshold(s) that is/are crossed or reached:	8%

8: Notified Details
A: Voting rights attached to shares
Class/type of share If possible use ISIN code		GB00B19DVX61

Situation previous to the triggering transaction
Number of shares		Number of voting rights
65,172,827		65,172,827

Resulting situation after the triggering transaction
Number of shares	Number of voting rights		Percentage of voting rights
	Direct	Indirect	Direct	Indirect
64,500,427	39,496,995	25,003,432	4.894%	3.098%

B: Qualifying Financial Instruments
Resulting situation after the triggering transaction
Type of financial instrument	Expiration date	Exercise/ conversion period/date	No. of voting rights that may be acquired (if the instrument exercised/converted)	Percentage of voting rights

9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable:

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:

14. Contact name:

Steve Devany, Head of Corporate Communications

15. Contact telephone number:

020 7821 3758

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial
instrument

Exercise
price

Expiration
date

Exercise/
Conversion
period

Number of voting
rights instrument
refers to

% of voting rights