| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ARDS HOLDINGS LIMITED | NI009882 | 01/04/2007 | Silver |
| ARDS HOLDINGS OVERSEAS LIMITED | NI011814 | 19/12/2003 | Dissolved |
| ARDS TRUST LIMITED | NI037030 | 01/01/2004 | Not Trading |
| BOUCHER DEVELOPMENTS (N.I.) LIMITED | NI015919 | 01/01/2004 | Dissolved |
| GILBERT-ASH CAIRN LIMITED | NI009790 | 19/12/2003 | Dissolved |
| GILBERT-ASH FITOUT LIMITED | NI011609 | 19/12/2003 | Not Trading |
| GILBERT-ASH LIMITED | NI002345 | 19/12/2003 | Bronze |
| GRANITE AGGREGATE LIMITED | NI002747 | 19/12/2003 | Dissolved |
| GREENBANK TIMBER AND METAL LIMITED | NI011290 | 19/12/2003 | Dissolved |
| POTTINGER PROPERTIES LIMITED | NI016254 | 19/12/2003 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CONSTRUCTION EMPLOYERS FEDERATION LIMITED | NI001944 | 17/01/2013 | 06/06/2022 | Gold |
| DIVERSITY MARK (N.I.) LTD | NI648334 | 06/03/2018 | 16/03/2021 | One Red Flag |
| INDUSTRIAL PRECISION COMPONENTS LTD | NI070790 | 30/09/2014 | 18/10/2016 | Bronze |