Holding(s) in Company

Clarkson PLC
13 December 2005



CLARKSON PLC

HOLDING IN COMPANY

The Company has been notified that on 8 December 2005 Barclays PLC had a
notifiable interest in Clarkson PLC representing 4.97% of the ordinary issued
share capital of the Company.

The shares are held by five Barclay PLC group companies:

Barclays Capital Securities Limited                    177,446
Barclays Life Assurance Company Limited                 77,104
Barclays Global Investors Limited                      559,881
Gerrard Limited                                         19,875
Barclays Bank Trust Company Limited                     14,117

END

Notes to editors

Background to Clarkson PLC

Clarkson PLC (which is listed on the London Stock Exchange) is acknowledged as
the world's leading shipping services group.  Through its unrivalled and
extensive global network of offices it is able to give its clients unique access
to a wide range of shipping services.  Clarksons covers shipbroking, research,
publications, derivatives and logistics.  Clarksons' strategy is to expand and
develop the group around these key activites.

For further information on Clarkson PLC, please visit the company's website at
www.clarksons.com




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