| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BEADON CONSULTING LTD | 14614359 | 24/01/2023 | Gold |
| SHIRE OAK FILMS LIMITED | 09981767 | 02/02/2016 | Dissolved |
| SHIRE OAK PUMPED STORAGE (BLACKPOOL) LTD | 09154238 | 30/07/2014 | Dissolved |
| SHIRE OAK PUMPED STORAGE (GOONBARROW) LTD | 09154275 | 30/07/2014 | Dissolved |
| SHIRE OAK PUMPED STORAGE (LLANDDULAS) LTD | 09306221 | 11/11/2014 | Dissolved |
| SIMEC TIDAL LAGOON POWER INDIA LIMITED | 10632167 | 22/02/2017 | Dissolved |
| SWANSEA BAY ENERGY ISLAND LIMITED | 10696490 | 29/03/2017 | Dissolved |
| TIDAL LAGOON (BRIDGWATER BAY) LIMITED | 09310406 | 13/11/2014 | Dissolved |
| TIDAL LAGOON (COLWYN BAY) PLC | 08365179 | 17/01/2013 | Dissolved |
| TIDAL LAGOON (IP) LIMITED | 09341610 | 04/12/2014 | Dissolved |
| TLP GEO EXCHANGE LIMITED | 08669149 | 30/08/2013 | Dissolved |
| TLP STORAGE PLC | 11208924 | 15/02/2018 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BLACK MOUNTAIN DEVELOPMENTS LTD | 11132108 | 03/01/2018 | 23/12/2022 | One Red Flag |
| DEAN QUARRY MINERAL RIGHTS LIMITED | 09341753 | 04/12/2014 | 03/11/2022 | One Red Flag |
| KERNICK AND TRETHOSA SOLAR LIMITED | 08141270 | 01/12/2012 | 01/11/2013 | Amber |
| SHIRE OAK ENERGY LIMITED | 08100687 | 01/12/2012 | 03/11/2022 | Insolvent |
| SHIRE OAK INTERNATIONAL (COLOMBIA) LTD | 13542702 | 02/08/2021 | 03/11/2022 | Dissolved |
| SHIRE OAK INTERNATIONAL (SOUTH AFRICA) LTD | 13671028 | 11/10/2021 | 03/11/2022 | Dissolved |
| SHIRE OAK INTERNATIONAL LIMITED | 11141986 | 10/01/2018 | 03/11/2022 | Insolvent |
| SHIRE OAK QUARRIES LIMITED | 08950968 | 20/03/2014 | 03/11/2022 | One Red Flag |
| SOFIG 1 LIMITED | 09989149 | 05/02/2016 | 11/02/2019 | Dissolved |
| TIDAL LAGOON (CARDIFF) LIMITED | 09341626 | 04/12/2014 | 23/12/2022 | Dissolved |
| TIDAL LAGOON (SWANSEA BAY) PLC | 08141301 | 25/01/2013 | 23/12/2022 | Strike Off |
| TIDAL LAGOON (WEST CUMBRIA) PLC | 09164453 | 06/08/2014 | 23/12/2022 | Dissolved |
| TIDAL LAGOON PLC | 09359280 | 17/12/2014 | 23/12/2022 | Dissolved |
| TIDAL LAGOON POWER LIMITED | 08163554 | 01/12/2012 | 23/12/2022 | Dissolved |
| TIDAL POWER PLC | 10854418 | 06/07/2017 | 23/12/2022 | Strike Off |
| WANAGEESKA LIMITED | 08166944 | 01/12/2012 | 29/06/2015 | Silver |