The principal operating subsidiaries at 31 December 2010 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.
| Pearson Education | Country of incorporation or registration |
|---|---|
| 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 |
| The Penguin Group | |
| Penguin Group (USA) Inc. | US |
| The Penguin Publishing Co Ltd | England |
| Dorling Kindersley Holdings Ltd* | England |
* Direct investment of Pearson plc.
The company has taken advantage of the exemption under Section 410(2) of the Companies Act 2006 by providing information only in relation to subsidiary undertakings whose results or financial position, in the opinion of the directors, principally affected the financial statements. A complete list of subsidiary and associated undertakings will be included in the next Pearson plc annual return filed with the Registrar of Companies.