| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| C & D ENVIRONMENTAL COMPANY LIMITED | 03271601 | 13/11/1996 | Dissolved |
| C & D INDUSTRIAL SERVICES (SCOTLAND) LIMITED | SC182136 | 16/02/1998 | Dissolved |
| C & D Industrial Services (Ireland) Ltd | NI042386 | 12/02/2002 | Dissolved |
| C&D INSULATION COMPANY LIMITED | 03926459 | 10/03/2000 | Dissolved |
| GREENWOOD CONSULTANCY LTD | 09658742 | 26/06/2015 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| C. & D. (INSULATION OPERATIONS) LIMITED | 01166692 | 25/03/1996 | 01/02/2017 | Dissolved |
| COILSTOCK LIMITED | 01019770 | 25/03/1996 | 01/02/2017 | Dissolved |
| IMS ENERGY LTD | 11397797 | 11/04/2019 | 20/02/2020 | Two Red Flags |
| KAEFER LIMITED | 03132937 | 25/03/1996 | 31/12/2016 | Gold |
| KAEFER OPUS LIMITED | 05241013 | 22/04/2013 | 31/12/2016 | Dissolved |
| MARINE & OFFSHORE (SCOTLAND) LIMITED | 02063609 | 23/02/2011 | 31/12/2016 | Not Trading |