| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AIRCON WORLD LIMITED | 06740130 | 18/12/2008 | Dissolved |
| AIRCON WORLD LIMITED | 06740130 | 18/12/2008 | Dissolved |
| BOILERS12345 LIMITED | 10417530 | 10/10/2016 | Dissolved |
| CPH MECHANICAL SERVICES LTD | 10007003 | 16/02/2016 | Dissolved |
| DEI SERVICES LIMITED | 02504930 | 08/10/2020 | One Red Flag |
| DORMANT DEI SERVICES LIMITED | 11555459 | 06/09/2018 | Dissolved |
| GRC FACILITIES MANAGEMENT LTD | 11627514 | 17/10/2018 | Dissolved |
| ICH ELECTRICAL LTD | 08602200 | 09/07/2013 | Dissolved |
| ICH LIMITED | 02745893 | 01/10/1992 | Bronze |
| INDUSTRIAL & COMMERCIAL HEATING (HOLDINGS) LIMITED | 06449983 | 11/01/2008 | Bronze |
| INDUSTRIAL & COMMERCIAL HEATING (HOLDINGS) LIMITED | 06449983 | 11/12/2007 | Bronze |
| MCKIERNAN GROUP LIMITED | 00482520 | 13/05/2014 | Dissolved |
| MECHANICAL LABOUR SERVICES (SCOTIA) LTD | 11777142 | 21/01/2019 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|