| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALCAN ALUMINA HOLDINGS LIMITED | 08179820 | 24/07/2013 | Dissolved |
| BIONDI CORPORATION LIMITED | 03057867 | 17/05/1995 | Gold |
| CNA UK LIMITED | 00785896 | 24/07/2013 | Dissolved |
| RIO TINTO ALUMINIUM HOLDINGS (UK) LIMITED | 00883375 | 24/07/2013 | Dissolved |
| RIO TINTO CHARTERS LIMITED | 05401094 | 24/07/2013 | Dissolved |
| RIO TINTO INVESTMENTS LIMITED | 00359652 | 24/07/2013 | Dissolved |
| RIO TINTO SHIPPING LIMITED | 05269341 | 24/07/2013 | Dissolved |
| RTA HOLDCO 2 LIMITED | 06386661 | 24/07/2013 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CNUC(UK) MINING CO. LTD | 02996686 | 24/07/2013 | 05/05/2017 | Silver |
| LA GRANJA UK HOLDINGS LIMITED | 05647302 | 24/07/2013 | 05/03/2014 | Amber |
| LONDON GAY MEN'S CHORUS | 04390145 | 20/07/2017 | 13/09/2019 | Dissolved |
| RIO TINTO AUSTRALIAN HOLDINGS LIMITED | 00464176 | 24/07/2013 | 05/05/2017 | Gold |
| RIO TINTO BAHIA HOLDINGS LIMITED | 01338672 | 24/07/2013 | 05/05/2017 | Gold |
| RIO TINTO BRAZILIAN HOLDINGS LIMITED | 04986803 | 24/07/2013 | 05/05/2017 | Dissolved |
| RIO TINTO BRAZILIAN INVESTMENTS LIMITED | 04986798 | 24/07/2013 | 05/05/2017 | Dissolved |
| RIO TINTO ENERGY LIMITED | 05699397 | 24/07/2013 | 05/05/2017 | Not Trading |
| RIO TINTO EUROPEAN HOLDINGS LIMITED | 00993068 | 24/07/2013 | 05/05/2017 | Bronze |
| RIO TINTO FH LIMITED | 00339168 | 24/07/2013 | 05/05/2017 | Dissolved |
| RIO TINTO FINANCE (USA) PLC | 06287014 | 24/07/2013 | 28/04/2017 | Silver |
| RIO TINTO FINANCE PLC | 00358901 | 24/07/2013 | 02/05/2017 | Silver |
| RIO TINTO INDONESIAN HOLDINGS LIMITED | 03074852 | 24/07/2013 | 05/03/2014 | Gold |
| RIO TINTO INTERNATIONAL HOLDINGS LIMITED | 00425864 | 24/07/2013 | 05/05/2017 | Bronze |
| RIO TINTO IRON ORE TRADING CHINA LIMITED | 08651526 | 15/08/2013 | 10/12/2013 | Gold |
| RIO TINTO LONDON LIMITED | 00460473 | 24/07/2013 | 05/05/2017 | Silver |
| RIO TINTO METALS LIMITED | 00147115 | 24/07/2013 | 05/05/2017 | Silver |
| RIO TINTO MINERALS DEVELOPMENT LIMITED | 00281218 | 24/07/2013 | 05/03/2014 | One Red Flag |
| RIO TINTO NOMINEES LIMITED | 01181093 | 24/07/2013 | 05/05/2017 | Not Trading |
| RIO TINTO OVERSEAS HOLDINGS LIMITED | 00280423 | 24/07/2013 | 05/05/2017 | Silver |
| RIO TINTO PENSION INVESTMENTS LIMITED | 01776943 | 24/07/2013 | 05/05/2017 | Dissolved |
| RIO TINTO SIMFER UK LIMITED | 06375648 | 24/07/2013 | 05/03/2014 | Gold |
| RIO TINTO SOUTH EAST ASIA LIMITED | 03699290 | 24/07/2013 | 05/05/2017 | Bronze |
| RIO TINTO SULAWESI HOLDINGS LIMITED | 07451623 | 24/07/2013 | 05/03/2014 | Not Trading |
| RIO TINTO URANIUM LIMITED | 02523945 | 31/01/2015 | 05/05/2017 | Dissolved |
| RIO TINTO URANIUM SERVICES LIMITED | 05548486 | 31/01/2015 | 05/05/2017 | Dissolved |
| RIO TINTO VOSTOK LIMITED | 05524741 | 20/08/2013 | 06/02/2017 | Dissolved |
| RIO TINTO WESTERN HOLDINGS LIMITED | 00007132 | 24/07/2013 | 05/05/2017 | Gold |
| RTA HOLDCO 1 LIMITED | 06386663 | 24/07/2013 | 05/05/2017 | Not Trading |
| RTA HOLDCO 4 LIMITED | 06404791 | 24/07/2013 | 05/05/2017 | Silver |
| RTA HOLDCO 7 LIMITED | 06454989 | 24/07/2013 | 05/05/2017 | Dissolved |
| RTA HOLDCO 8 LIMITED | 07105547 | 24/07/2013 | 05/05/2017 | Strike Off |
| RTLDS UK LIMITED | 04360048 | 24/07/2013 | 05/05/2017 | Not Trading |
| THOS W WARD LIMITED | 00081020 | 24/07/2013 | 05/03/2014 | Gold |