| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| EXCELSYS LIMITED | 05516041 | 25/10/2005 | Silver |
| JAM I P LTD | 05201921 | 29/07/2009 | Dissolved |
| KINGSTON COMMUNICATIONS QUEST TRUSTEES LIMITED | 03942998 | 11/10/2016 | Dissolved |
| MISTRAL INTERNET GROUP LIMITED | 04272612 | 11/10/2016 | Dissolved |
| OMNETICA HOLDING LIMITED | 04492919 | 05/07/2010 | Dissolved |
| OMNETICA LIMITED | 04492915 | 05/07/2010 | Dissolved |
| Stockwhiz Ltd | 03833433 | 05/07/2010 | Dissolved |
| TACIT CONNEXIONS LIMITED | 04742476 | 12/09/2007 | Gold |
| TECHNICA UK LIMITED | 03475331 | 29/07/2009 | Dissolved |
| TORCH COMMUNICATIONS LTD. | 03318088 | 11/10/2016 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AFFINITI INTEGRATED SOLUTIONS LTD. | 02817039 | 29/07/2009 | 29/11/2018 | Not Trading |
| AT COMMUNICATIONS GROUP PLC | 04415825 | 28/03/2006 | 21/10/2010 | Dissolved |
| BT (CBP) LIMITED | 02002853 | 26/07/1992 | 26/03/2004 | Dissolved |
| ECLIPSE INTERNET LIMITED | 04232703 | 11/10/2016 | 29/11/2018 | Dissolved |
| ECLIPSE NETWORKING LIMITED | 03056704 | 11/10/2016 | 29/11/2018 | Dissolved |
| ENTERPRISE SERVICES INFORMATION SECURITY UK LIMITED | 02557363 | 25/08/2005 | 26/07/2006 | Bronze |
| JADE SOLUTIONS LIMITED | 02842141 | 25/07/2007 | 26/07/2017 | Dissolved |
| KCH (HOLDINGS) LIMITED | 06072997 | 29/07/2009 | 29/11/2018 | Bronze |
| KCOM (GENERAL PARTNER) LIMITED | SC445097 | 14/03/2013 | 29/11/2018 | Silver |
| KCOM CONTACT CENTRES LIMITED | 03703097 | 22/12/2008 | 29/11/2018 | One Red Flag |
| KCOM GROUP LIMITED | 02150618 | 01/09/2006 | 29/11/2018 | Bronze |
| KCOM HOLDINGS LIMITED | 03317871 | 29/07/2009 | 29/11/2018 | Silver |
| KCOM INTERNATIONAL LIMITED | 02563065 | 14/04/2011 | 29/11/2018 | Strike Off |
| KINGSTON COMMUNICATIONS (DATA) LTD. | 00946237 | 25/01/2010 | 25/01/2010 | Dissolved |
| KINGSTON COMMUNICATIONS (HULL) LTD. | 03607871 | 11/10/2016 | 29/11/2018 | Dissolved |
| KINGSTON INFORMATION SERVICES LIMITED | 03317824 | 29/07/2009 | 29/11/2018 | Dissolved |
| KINGSTON NETWORK HOLDINGS LIMITED | 03510105 | 29/07/2009 | 29/11/2018 | Dissolved |
| KINGSTON SERVICES HOLDINGS LIMITED | 03504144 | 29/07/2009 | 29/11/2018 | Not Trading |
| NORTHERN TECHNOLOGY INVESTMENTS LIMITED | 05322715 | 25/07/2007 | 26/07/2017 | Dissolved |
| OMNETICA INVESTMENT LIMITED | 04492913 | 18/08/2010 | 29/11/2018 | Not Trading |
| SMART421 LIMITED | 03908235 | 02/04/2009 | 29/11/2018 | Insolvent |
| SMART421 TECHNOLOGY GROUP LIMITED | 04154546 | 11/10/2016 | 29/11/2018 | Insolvent |
| SMARTINTEGRATOR TECHNOLOGY LIMITED | 03933127 | 11/10/2016 | 29/11/2018 | Dissolved |
| SYNTEGRA (UK) LIMITED | 02191609 | 13/07/1992 | 26/03/2004 | Dissolved |
| SYNTEGRA LIMITED | 03800126 | 09/10/2002 | 26/03/2004 | Dissolved |
| SYNTEGRA.COM LTD | 00783854 | 14/02/2000 | 26/03/2004 | Dissolved |
| Settov Uk Ltd | 05156042 | 17/06/2004 | 11/11/2005 | Dissolved |
| TECH MAHINDRA LIMITED | FC018895 | 16/11/1995 | 01/03/2002 | N/A |
| VISTORM HOLDINGS LIMITED | 04624301 | 25/08/2005 | 26/07/2006 | Dissolved |
| VISTORM TRUSTEES LIMITED | 04801752 | 25/08/2005 | 26/07/2006 | Dissolved |