Notifications Of Major Intere

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SThree (STEM)

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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:	SThree PLC
2: Reason for notification (yes/no)
An acquisition or disposal of voting rights		yes
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 event changing the breakdown of voting rights		no
Other (please specify):		no
3: Full name of person(s) subject to notification obligation:	Standard Life Investments Ltd
4: Full name of shareholder(s) (if different from 3):	Vidacos Nominees
5: Date of transaction (and date on which the threshold is crossed or reached if different):	5 September 2008
6: Date on which issuer notified:	8 September 2008
7: Threshold(s) that is/are crossed or reached:	9%

8: Notified Details
A: Voting rights attached to shares
Class/type of share If possible use ISIN code				GB00B0KM9T71

Situation previous to the triggering transaction
Number of shares				Number of voting rights
12,549,146				12,549,146

Resulting situation after the triggering transaction
Number of shares		Number of voting rights				Percentage of voting rights
		Direct		Indirect		Direct		Indirect
11,227,799		5,291,578		5,936,221		4.230%		4.745%

B: 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


Total (A+B)
Number of voting rights				Percentage of voting rights
11,227,799				8.975%

Chain of controlled undertakings through which the voting rights and /or the financial instruments are effectively held, if applicable:
Standard Life Investments Ltd

Proxy Voting:
Name of proxy holder:
Number of voting rights proxy holder will cease to hold:
Date on which proxy holder will cease to hold voting rights:

Additional information:
Contact name:	Alison Kennedy Corporate Governance Manager-Engagement Standard Life Investments Ltd
Contact telephone number:	(0131) 245 2289