Holding(s) in Company

TR-1: Notifications of Major Interests in Shares

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

Interior Services Group plc

2. Reason for notification (yes/no)

An acquisition or disposal of voting rights

No

An acquisition or disposal of 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):___________________________

Yes

3. Full name of person(s) subject to notification obligation:

Ameriprise Financial, Inc. and its group

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

See additional information under 13.

5. Date of transaction and date on which the threshold is crossed or reached:

1 October 2009

6. Date on which issuer notified:

1 October 2009

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

Below the threshold of 11%

8: Notified Details

A: Voting rights attached to shares

Class/type of shares

If possible use ISIN code

Situation previous to the triggering transaction

Resulting situation after the triggering transaction

Number of shares

Number of voting rights

Number of shares

Number of voting rights

Percentage of voting rights

Direct

Direct

Indirect

Direct

Indirect

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date

Exercise/ conversion period

No. of voting rights that may be acquired if the instrument is exercised/converted.

Percentage of voting rights

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

No. of voting rights instrument refers to

Percentage of voting rights

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

3,437,144

10.366%

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

Ameriprise Financial, Inc., which through intermediate holding companies controls the voting rights of Threadneedle Management Luxembourg S.A. and Threadneedle Asset Management Holdings Ltd, which itself controls the voting rights of Threadneedle Asset Management Ltd, Threadneedle International Ltd and Threadneedle Pensions Ltd.

Proxy Voting:

10. Name of 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:

Registered Owner

14 Contact name:

Company Secretary, Threadneedle group

15. Contact telephone name:

+44 (0)20 7464 5000