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Principal subsidiaries

The principal operating subsidiaries at 31 December 2009 are listed below. They operate mainly in the countries of incorporation or registration, the investments are in equity share capital and they are all 100% owned unless stated otherwise.

Country of incorporation or registration
Pearson Education
Pearson Education Inc. US
Pearson Education Ltd England
Edexcel Ltd* England
NCS Pearson Inc. US
FT Group
The Financial Times Ltd England
Mergermarket Ltd England
Interactive Data Corporation (61%) US
The Penguin Group
Penguin Group (USA) Inc. US
The Penguin Publishing Co Ltd England
Dorling Kindersley Holdings Ltd* England

* Direct investment of Pearson plc.