| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Covent Garden Books Ltd | 01993204 | 04/08/2000 | Dissolved |
| D K Direct Ltd | 02382702 | 04/08/2000 | Dissolved |
| Dk Interactive Learning Ltd | 01891561 | 04/08/2000 | Dissolved |
| Dorling Kindersley Adult Ltd | 01811318 | 04/08/2000 | Dissolved |
| Dorling Kindersley Cartography Ltd | 02733005 | 04/08/2000 | Dissolved |
| Dorling Kindersley Children's Ltd | 01784713 | 04/08/2000 | Dissolved |
| Dorling Kindersley Education Ltd | 02592817 | 04/08/2000 | Dissolved |
| Dorling Kindersley Publishing Ltd | 02848769 | 04/08/2000 | Dissolved |
| Dorling Kindersley Quest Ltd | 03217249 | 04/08/2000 | Dissolved |
| Penguin Pension Trustees Limited | 00793674 | 01/05/1997 | Dissolved |
| Penguin Warehousing & Distribution Ltd | 00843637 | 01/05/1997 | Dissolved |
| Rough Guides Online Ltd | 03153915 | 18/12/1996 | Dissolved |
| Rough Guides Television Ltd | 03153919 | 18/12/1996 | Dissolved |
| Tigermill Ltd | 02322539 | 18/12/1996 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ACACIA INTERACTIVE LIMITED | 03020442 | 04/08/2000 | 28/02/2005 | Dissolved |
| ALLEN LANE THE PENGUIN PRESS LIMITED | 00861772 | 01/05/1997 | 28/02/2005 | Not Trading |
| CHILDREN'S CHARACTER BOOKS LIMITED | 05032989 | 25/03/2004 | 28/02/2005 | Amber |
| DORLING KINDERSLEY FAMILY LEARNING LIMITED | 02623194 | 04/08/2000 | 28/02/2005 | Dissolved |
| DORLING KINDERSLEY LIMITED | 01177822 | 10/05/2000 | 28/02/2005 | Bronze |
| DORLING KINDERSLEY VISION LIMITED | 01641954 | 04/08/2000 | 28/02/2005 | Not Trading |
| Dorling Kindersley France Ltd | 03922173 | 04/08/2000 | 28/02/2005 | Dissolved |
| ELM TREE BOOKS LIMITED | 00733387 | 01/05/1997 | 28/02/2005 | Dissolved |
| FREDERICK WARNE & CO LIMITED | 00155455 | 01/05/1997 | 28/02/2005 | Silver |
| FREDERICK WARNE (PUBLISHERS) LIMITED | 01264921 | 01/05/1997 | 28/02/2005 | Dissolved |
| FUNFAX LIMITED | 02060097 | 04/08/2000 | 28/02/2005 | Not Trading |
| GEORGE RAINBIRD LIMITED | 00543867 | 01/05/1997 | 28/02/2005 | Dissolved |
| GODFREY CAVE HOLDINGS LIMITED | 02169055 | 01/05/1997 | 28/02/2005 | Dissolved |
| Godfrey Cave Associates Ltd | 01188329 | 01/05/1997 | 28/02/2005 | Dissolved |
| HAMISH HAMILTON CHILDREN'S BOOKS LIMITED | 00700925 | 01/05/1997 | 28/02/2005 | Not Trading |
| HAMISH HAMILTON LIMITED | 00253393 | 01/05/1997 | 28/02/2005 | Not Trading |
| HENDERSON PUBLISHING LIMITED | 02340839 | 04/08/2000 | 28/02/2005 | Dissolved |
| HUGO'S LANGUAGE BOOKS LIMITED | 00503652 | 04/08/2000 | 28/02/2005 | Not Trading |
| LADYBIRD BOOKS LIMITED | 00200130 | 26/03/1992 | 28/02/2005 | Silver |
| Ladybird Direct Ltd | 01220807 | 26/03/1992 | 28/02/2005 | Dissolved |
| MICHAEL JOSEPH LIMITED | 00304766 | 01/05/1997 | 28/02/2005 | Not Trading |
| PEARSON BOOKS LIMITED | 02512075 | 10/05/2000 | 28/02/2005 | Insolvent |
| PELHAM BOOKS LIMITED | 00622106 | 01/05/1997 | 28/02/2005 | Not Trading |
| PENGUIN BOOKS LIMITED | 00861590 | 29/09/1994 | 28/02/2005 | Gold |
| PENGUIN RANDOM HOUSE LIMITED | 00734421 | 09/05/1996 | 28/02/2005 | Silver |
| Penguin Overseas Ltd | 00935982 | 01/05/1997 | 28/02/2005 | Dissolved |
| RAINBIRD PUBLISHING GROUP LIMITED(THE) | 00491550 | 01/05/1997 | 28/02/2005 | Dissolved |
| ROUGH GUIDES LIMITED(THE) | 01969090 | 18/12/1996 | 28/02/2005 | Amber |
| SALSPOT LIMITED | 01594405 | 01/05/1997 | 28/02/2005 | Gold |
| VENTURA PUBLISHING LIMITED | 01319909 | 01/05/1997 | 28/02/2005 | Gold |