| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| HAWKSLEASE FINANCE COMPANY LIMITED | 04359903 | 03/02/2006 | 01/03/2021 | Gold |
| INEOS AUTOMOTIVE RESEARCH LIMITED | 10825911 | 07/01/2019 | 25/09/2023 | Not Trading |
| INEOS ENTERPRISES GROUP LIMITED | 04687714 | 05/03/2019 | 01/03/2021 | Silver |
| INEOS INOVYN LIMITED | 08696245 | 08/07/2016 | 01/03/2021 | Silver |
| INEOS PROCUREMENT LIMITED | 04589671 | 03/02/2006 | 01/03/2021 | Dissolved |
| INEOS QUATTRO FINANCE 1 PLC | 13091138 | 17/03/2021 | 07/12/2022 | Silver |
| INEOS QUATTRO FINANCE 2 PLC | 13091130 | 17/03/2021 | 07/12/2022 | Silver |
| INEOS QUATTRO FINANCING LIMITED | 09922303 | 17/03/2021 | 07/12/2022 | Amber |
| INEOS QUATTRO HOLDINGS LIMITED | 09922632 | 17/03/2021 | 07/12/2022 | Bronze |
| INEOS QUATTRO HOLDINGS UK LIMITED | 12698648 | 17/03/2021 | 07/12/2022 | Bronze |
| INEOS RUNCORN (TPS) HOLDINGS LIMITED | 06574947 | 14/04/2015 | 01/02/2021 | Silver |
| INEOS RUNCORN (TPS) LIMITED | 06575668 | 14/04/2015 | 01/03/2021 | Silver |
| INEOS TECHNOLOGIES (HOLDINGS) LIMITED | 06716202 | 16/02/2017 | 01/03/2021 | Bronze |
| INEOS TECHNOLOGIES (VINYLS) LIMITED | 07085219 | 16/02/2017 | 01/03/2021 | Silver |
| INEOS VINYLS HOLDINGS LIMITED | 04144744 | 03/02/2006 | 01/03/2021 | Not Trading |
| INEOS VINYLS LIMITED | 05407940 | 13/02/2006 | 01/03/2021 | Gold |
| INEOS VINYLS UK LTD | 00547640 | 13/02/2006 | 01/03/2021 | Dissolved |
| INOVYN CHLORVINYLS HOLDINGS LIMITED | 07085121 | 24/11/2009 | 01/03/2021 | Amber |
| INOVYN CHLORVINYLS LIMITED | 04068812 | 03/02/2006 | 01/03/2021 | Gold |
| INOVYN ENERGY LIMITED | 02076043 | 03/02/2006 | 01/03/2021 | Silver |
| INOVYN ENTERPRISES LIMITED | 04651437 | 04/11/2011 | 01/03/2021 | Amber |
| INOVYN EUROPE LIMITED | 10398354 | 28/09/2016 | 01/03/2021 | Bronze |
| INOVYN FINANCE LIMITED | 07027513 | 26/11/2009 | 01/03/2021 | Silver |
| INOVYN GROUP TREASURY LIMITED | 06179953 | 04/06/2008 | 01/03/2021 | One Red Flag |
| INOVYN HOLDINGS LIMITED | 10204869 | 28/05/2016 | 01/03/2021 | Dissolved |
| INOVYN NEWCO 2 LIMITED | 04772918 | 03/02/2006 | 01/03/2021 | Gold |
| INOVYN NEWTON AYCLIFFE LIMITED | 01631120 | 08/09/2009 | 01/03/2021 | Silver |
| INOVYN SALES INTERNATIONAL LIMITED | 03934724 | 03/02/2006 | 01/03/2021 | Dissolved |
| INOVYN SERVICES LIMITED | 04797474 | 26/03/2013 | 01/03/2021 | Amber |
| KERLING NEWCO 1 LIMITED | 09613152 | 28/05/2015 | 01/03/2021 | Gold |
| KERLING NEWCO 2 LIMITED | 09613220 | 29/05/2015 | 01/03/2021 | Gold |
| KEUPER GAS STORAGE LIMITED | 08850140 | 05/03/2019 | 01/03/2021 | Amber |
| VINYLS ITALIA LIMITED | 05870732 | 20/07/2006 | 12/07/2022 | Gold |