| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| APPLETREE HOUSE CONSULTING LIMITED | 15634734 | 10/04/2024 | Amber |
| CORERO DORMANT ONE LIMITED | 04257151 | 31/10/2007 | Dissolved |
| CORERO DORMANT THREE LIMITED | 04033323 | 31/10/2007 | Dissolved |
| CORERO DORMANT TWO LIMITED | 03692342 | 31/10/2007 | Dissolved |
| Corero Group Ltd | 06060250 | 01/02/2007 | Dissolved |
| Corero Software Ltd | 06060467 | 01/02/2007 | Dissolved |
| ECLIPSE LEARNER SYSTEMS LIMITED | 04280830 | 11/09/2007 | Dissolved |
| Mondas Information Technology Ltd | 06060137 | 31/10/2007 | Dissolved |
| Mondas Systems Ltd | 06060082 | 31/10/2007 | Dissolved |
| SECURUS SOFTWARE LIMITED | 04613837 | 06/07/2017 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CIVICA RESOURCE LIMITED | 02666282 | 08/08/2003 | 27/02/2014 | Dissolved |
| CORERO GROUP SERVICES LIMITED | 07472907 | 17/12/2010 | 01/08/2013 | Amber |
| CORERO NETWORK SECURITY PLC | 02662978 | 26/07/2007 | 30/06/2011 | Gold |