| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 550 SALES LTD | 09136561 | 18/07/2014 | Dissolved |
| Diamond Communications Plc | 02676461 | 01/06/1992 | Dissolved |
| INFORMATION TECHNOLOGY COMMUNICATIONS LIMITED | 03428871 | 14/01/2006 | Dissolved |
| INTROCOM LTD | 15056150 | 08/08/2023 | Bronze |
| Independent Telecom Maintenance Ltd | 02760353 | 04/08/1994 | Dissolved |
| JUST ONE CLICK LIMITED | 09563928 | 28/04/2015 | Dissolved |
| MINT VINTAGE LIMITED | 09512329 | 26/03/2015 | Dissolved |
| SUPPLY & SUPPORT LTD | 08807352 | 09/12/2013 | Dissolved |
| SUPPORT & MAINTENANCE LTD | 07700414 | 11/07/2011 | Dissolved |
| TECHNOLOGY SOLUTIONS FOR BUSINESS LIMITED | 10995226 | 04/10/2017 | Dissolved |
| VDN SUPPORT SERVICES LIMITED | 04387326 | 10/04/2006 | Dissolved |
| VDNSS LIMITED | 07314161 | 10/10/2010 | Dissolved |
| VOICE DATA NETWORKS LIMITED | 04337474 | 24/06/2003 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| INFORMATION TECHNOLOGY COMMUNICATIONS LIMITED | 03428871 | 09/06/2003 | 05/11/2004 | Dissolved |
| Independent Telecom Maintenance (Uk) Ltd | 03006777 | 06/01/1995 | 27/03/1995 | Dissolved |
| TALK FOR ENGLAND LIMITED | 06768111 | 08/12/2008 | 01/02/2010 | Dissolved |
| Telecom E.C. Ltd | 03029279 | 09/03/1995 | 02/06/1995 | Dissolved |
| UK IP SERVICES LIMITED | 05886552 | 25/07/2006 | 10/08/2007 | Dissolved |