| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| HARPERCOLLINS PUBLISHERS PENSION TRUSTEE COMPANY LIMITED | SC053382 | 14/04/2000 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BOOKARMY LTD | 06709924 | 19/03/2010 | 01/12/2016 | Dissolved |
| COBUILD LIMITED | 02042473 | 30/06/2009 | 01/12/2016 | Silver |
| COBUILD LIMITED | 02042473 | 01/05/2008 | 01/12/2016 | Silver |
| COLLINS BARTHOLOMEW LIMITED | 01218466 | 30/06/2009 | 01/12/2016 | Silver |
| COLLINS BARTHOLOMEW LIMITED | 01218466 | 08/02/2000 | 01/12/2016 | Silver |
| DOLPHIN BOOK CLUB LIMITED | 00706607 | 30/06/2009 | 01/12/2016 | Bronze |
| DOLPHIN BOOK CLUB LIMITED | 00706607 | 08/02/2000 | 01/12/2016 | Bronze |
| GEORGE ALLEN & UNWIN (PUBLISHERS) LIMITED | 00137338 | 30/06/2009 | 01/12/2016 | One Red Flag |
| GEORGE ALLEN & UNWIN (PUBLISHERS) LIMITED | 00137338 | 08/02/2000 | 01/12/2016 | One Red Flag |
| HARLEQUIN (UK) LIMITED | 00100449 | 02/07/2015 | 01/12/2016 | Not Trading |
| HARLEQUIN ENTERPRISES UK LIMITED | 02960715 | 02/07/2015 | 01/12/2016 | Silver |
| HARPERCOLLINS (UK) | 02380447 | 30/06/2009 | 01/12/2016 | Bronze |
| HARPERCOLLINS INVESTMENTS (UK) LIMITED | 02380598 | 30/06/2009 | 01/12/2016 | Not Trading |
| HARPERCOLLINS PUBLISHERS LIMITED | SC027389 | 30/06/2009 | 01/12/2016 | Silver |
| HARPERCOLLINS PUBLISHERS LIMITED | SC027389 | 08/02/2000 | 01/12/2016 | Silver |
| HARPERCOLLINS PUBLISHERS PENSION TRUSTEE COMPANY LIMITED | SC053382 | 30/06/2009 | 01/12/2016 | One Red Flag |
| LECKIE & LECKIE LIMITED | SC198254 | 19/03/2010 | 01/12/2016 | Silver |
| LETTS EDUCATIONAL LIMITED | 02583342 | 19/03/2010 | 01/12/2016 | Silver |
| MARSHALL PICKERING HOLDINGS LIMITED | 01579375 | 30/06/2009 | 01/12/2016 | Bronze |
| MARSHALL PICKERING HOLDINGS LIMITED | 01579375 | 08/02/2000 | 01/12/2016 | Bronze |
| MILLS & BOON LIMITED | 00431633 | 02/07/2015 | 01/12/2016 | Silver |
| POLLOKSHIELDS PRINTING SERVICES, LIMITED | SC028281 | 08/02/2000 | 01/12/2016 | Dissolved |
| THORSONS PUBLISHERS LIMITED | 00757539 | 30/06/2009 | 01/12/2016 | Silver |
| THORSONS PUBLISHERS LIMITED | 00757539 | 08/02/2000 | 01/12/2016 | Silver |
| THORSONS PUBLISHING GROUP LIMITED | 00248525 | 30/06/2009 | 01/12/2016 | Not Trading |
| THORSONS PUBLISHING GROUP LIMITED | 00248525 | 08/02/2000 | 01/12/2016 | Not Trading |
| TIMES BOOKS GROUP LIMITED | 01277722 | 30/06/2009 | 01/12/2016 | Not Trading |
| TIMES BOOKS GROUP LIMITED | 01277722 | 08/02/2000 | 01/12/2016 | Not Trading |
| TIMES BOOKS LIMITED | 02340600 | 30/06/2009 | 01/12/2016 | Silver |
| TIMES BOOKS LIMITED | 02340600 | 08/02/2000 | 01/12/2016 | Silver |
| UNWIN HYMAN LIMITED | 02034197 | 30/06/2009 | 01/12/2016 | Not Trading |
| UNWIN HYMAN LIMITED | 02034197 | 08/02/2000 | 01/12/2016 | Not Trading |
| WILLIAM COLLINS HOLDINGS LIMITED | 02380596 | 30/06/2009 | 01/12/2016 | Gold |
| WILLIAM COLLINS INTERNATIONAL LIMITED | 00412783 | 30/06/2009 | 01/12/2016 | Not Trading |
| WILLIAM COLLINS INTERNATIONAL LIMITED | 00412783 | 08/02/2000 | 01/12/2016 | Not Trading |
| WILLIAM COLLINS SONS & COMPANY LIMITED | SC000934 | 30/06/2009 | 01/12/2016 | Not Trading |
| WILLIAM COLLINS SONS & COMPANY LIMITED | SC000934 | 08/02/2000 | 01/12/2016 | Not Trading |