| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CALM ELECTRIC SOLUTIONS LIMITED | 09403695 | 23/01/2015 | Dissolved |
| CALM GAS SOLUTIONS LIMITED | 09215596 | 12/09/2014 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CAPABILITYWORKS LIMITED | 09909316 | 09/12/2015 | 22/05/2017 | Bronze |
| IPSUM DRAINAGE SOLUTIONS LIMITED | 08546256 | 20/11/2013 | 03/03/2020 | One Red Flag |
| IPSUM SURVEY SOLUTIONS LIMITED | 07730859 | 05/08/2011 | 03/03/2020 | Silver |
| IPSUM WATER (ENGLAND & WALES) LIMITED | 08656093 | 19/08/2013 | 03/03/2020 | Gold |