| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 1ST PLACE COMMUNICATIONS LIMITED | 07102535 | 11/12/2009 | Insolvent |
| ACUITY UNIFIED COMMUNICATIONS LIMITED | 07139248 | 01/11/2011 | Silver |
| ICT RENTALS LIMITED | 07461719 | 07/12/2010 | Dissolved |
| LIZARD IT SOLUTIONS LTD | 09128046 | 14/07/2014 | Not Trading |
| London Quantum Networks Ltd | 05749827 | 26/03/2008 | Dissolved |
| Quantsecure Ltd | 06641044 | 10/07/2008 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BIS DATACENTRES LTD | 03740487 | 31/10/2001 | 08/03/2002 | Dissolved |
| Metromedia Fiber Network Services Ltd | 03770009 | 24/06/2002 | 04/01/2008 | Dissolved |
| Sitesmith Ltd | 03983592 | 24/06/2002 | 04/01/2008 | Dissolved |
| ZAYO GLOBAL REACH UK LIMITED | 03770029 | 31/10/2001 | 08/03/2002 | One Red Flag |
| ZAYO GROUP UK LIMITED | 03726666 | 31/10/2001 | 08/03/2002 | Silver |