| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 3I MEDIA 08-10 GP LIMITED | SC343429 | 10/10/2012 | Dissolved |
| AMBAC ASSURANCE UK LIMITED | 03248674 | 02/12/2019 | Bronze |
| HESLINGTON LANE LIMITED | 12389905 | 07/01/2020 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 3I 96 PARTNERS NOMINEES LIMITED | 03172468 | 10/10/2012 | 27/01/2017 | Dissolved |
| 3I APTECH GP LIMITED | 03910314 | 10/10/2012 | 27/01/2017 | Dissolved |
| 3I APTECH NOMINEES LIMITED | 03898300 | 10/10/2012 | 27/01/2017 | Dissolved |
| 3I EF3 GPA LIMITED | 03809732 | 10/10/2012 | 27/01/2017 | Dissolved |
| 3I EF3 GPB LIMITED | 03809756 | 10/10/2012 | 27/01/2017 | Dissolved |
| 3I EF3 NOMINEES A LIMITED | 04056723 | 10/10/2012 | 27/01/2017 | Dissolved |
| 3I EF3 NOMINEES B LIMITED | 04056729 | 10/10/2012 | 27/01/2017 | Dissolved |
| 3I EF4 GP LIMITED | 04605829 | 10/10/2012 | 27/01/2017 | Dissolved |
| 3I EFIV NOMINEES LIMITED | 04914129 | 10/10/2012 | 27/01/2017 | Dissolved |
| 3I EFV GP LIMITED | 05840692 | 10/10/2012 | 27/01/2017 | Gold |
| 3I EFV NOMINEES A LIMITED | 05985597 | 10/10/2012 | 27/01/2017 | Not Trading |
| 3I EFV NOMINEES B LIMITED | 05985584 | 10/10/2012 | 27/01/2017 | Not Trading |
| 3I EUROPARTNERS II GP LIMITED | 03369776 | 10/10/2012 | 27/11/2014 | Dissolved |
| 3I EUROPE GENERAL PARTNER LIMITED | 02820668 | 10/10/2012 | 27/11/2014 | Dissolved |
| 3I GC GP LIMITED | 07106395 | 10/10/2012 | 27/01/2017 | Bronze |
| 3I GC NOMINEES A LIMITED | 07220175 | 10/10/2012 | 27/01/2017 | Not Trading |
| 3I GC NOMINEES B LIMITED | 07220427 | 10/10/2012 | 27/01/2017 | Not Trading |
| 3I GENERAL PARTNER LIMITED | 02913422 | 10/10/2012 | 03/08/2016 | Dissolved |
| 3I GENERAL PARTNER NO 1 LIMITED | 03238605 | 10/10/2012 | 27/01/2017 | Dissolved |
| 3I GP 08-10 LIMITED | 06420433 | 10/10/2012 | 27/01/2017 | Dissolved |
| 3I GP 2004 LIMITED | SC262350 | 10/10/2012 | 27/01/2017 | Bronze |
| 3I GP 2006-08 LIMITED | 05720218 | 10/10/2012 | 27/01/2017 | Dissolved |
| 3I GP 2010 LIMITED | 07146784 | 10/10/2012 | 27/01/2017 | Silver |
| 3I GP 2013 LTD | 08489159 | 10/07/2013 | 27/01/2017 | Amber |
| 3I HOLDINGS PLC | 02591431 | 10/10/2012 | 27/01/2017 | Bronze |
| 3I INTERNATIONAL HOLDINGS | 00395557 | 10/10/2012 | 29/03/2017 | Not Trading |
| 3I INTERNATIONAL SERVICES PLC | 04206469 | 10/10/2012 | 27/01/2017 | Bronze |
| 3I INVESTMENTS GP LIMITED | 06085478 | 10/10/2012 | 27/01/2017 | Dissolved |
| 3I INVESTMENTS PLC | 03975789 | 10/10/2012 | 27/01/2017 | Gold |
| 3I NOMINEES LIMITED | 02916955 | 10/10/2012 | 27/01/2017 | Not Trading |
| 3I OSPREY GP LIMITED | 06100576 | 10/10/2012 | 27/01/2017 | Not Trading |
| 3I PLC | 00397156 | 10/10/2012 | 29/03/2017 | Silver |
| 3I PVLP NOMINEES LIMITED | 03455504 | 10/10/2012 | 27/01/2017 | Dissolved |
| AUTISM RESEARCH TRUST | 07164802 | 29/01/2019 | 02/11/2020 | Dissolved |
| BIFM INVESTMENTS LIMITED | 06949026 | 11/04/2014 | 21/07/2015 | Gold |
| CHARLES II REALISATION LLP | OC359632 | 01/06/2017 | 06/03/2019 | Bronze |
| ENVOL INVESTMENTS LIMITED | 10138864 | 05/07/2016 | 03/01/2017 | One Red Flag |
| ENVOL MIDCO LIMITED | 10137972 | 05/07/2016 | 03/01/2017 | Bronze |
| GARDENS NOMINEES LIMITED | 00632717 | 10/10/2012 | 27/01/2017 | Not Trading |
| GLOBAL INFRASTRUCTURE INVESTOR ASSOCIATION LIMITED | 09668904 | 03/07/2015 | 27/01/2017 | Gold |
| GP 2013 LTD | SC454175 | 10/07/2013 | 27/01/2017 | Amber |
| GP CCC 08-10 LIMITED | SC334004 | 10/10/2012 | 27/01/2017 | Dissolved |
| GP CCC 2010 LIMITED | SC372352 | 10/10/2012 | 27/01/2017 | Amber |
| I.C.F.C. COMPUTERS LIMITED | 00990569 | 10/10/2012 | 27/11/2014 | Dissolved |
| IIF SLP GP LIMITED | SC330301 | 10/10/2012 | 27/01/2017 | Amber |
| INFRARED (INFRASTRUCTURE) CAPITAL PARTNERS LIMITED | 03917449 | 22/06/2017 | 19/11/2018 | Silver |
| INFRARED CAPITAL PARTNERS LIMITED | 03364976 | 22/06/2017 | 19/11/2018 | Gold |
| INFRARED ENVIRONMENTAL INFRASTRUCTURE GP LIMITED | 06475352 | 22/06/2017 | 19/11/2018 | Amber |
| INFRARED INFRASTRUCTURE III GENERAL PARTNER LIMITED | 07117117 | 22/06/2017 | 19/11/2018 | Gold |
| INFRARED INFRASTRUCTURE YIELD GENERAL PARTNER LIMITED | 08097062 | 22/06/2017 | 19/11/2018 | Silver |
| INFRARED INFRASTRUCTURE YIELD HOLDINGS LIMITED | 08109112 | 22/06/2017 | 19/11/2018 | Bronze |
| INFRASTRUCTURE INVESTMENTS GENERAL PARTNER LIMITED | 05622598 | 22/06/2017 | 19/11/2018 | Bronze |
| INFRASTRUCTURE INVESTMENTS HOLDINGS LIMITED | 06555131 | 22/06/2017 | 19/11/2018 | Bronze |
| INVESTCORP CREDIT MANAGEMENT EU LIMITED | 05655607 | 03/10/2012 | 01/03/2016 | Gold |
| INVESTORS IN INDUSTRY PLC | 00510431 | 10/10/2012 | 29/03/2017 | Not Trading |
| MAYFLOWER GP LIMITED | 01629915 | 10/10/2012 | 27/01/2017 | Dissolved |
| PALACE STREET I LIMITED | 07704438 | 10/10/2012 | 27/01/2017 | Dissolved |
| WIG HOLDINGS I LIMITED | 09948019 | 23/06/2016 | 03/01/2017 | Bronze |
| WIG HOLDINGS II LIMITED | 09948040 | 23/06/2016 | 03/01/2017 | Bronze |