| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| COMMUNICATION SYSTEMS ASSOCIATES LIMITED | 02615239 | 08/06/1998 | Silver |
| HELIANT LIMITED | 07437580 | 11/11/2010 | Dissolved |
| INSTANT ACCESS SECURITY LIMITED | 09624957 | 05/06/2015 | Dissolved |
| IPROOV LIMITED | 07866563 | 30/11/2011 | Amber |
| IPROOV RESEARCH LIMITED | 11030486 | 25/10/2017 | One Red Flag |
| IPROVE LIMITED | 07860550 | 25/11/2011 | Not Trading |
| MEDIA RESEARCH PARTNERS LIMITED | 07347204 | 16/08/2010 | Dissolved |
| MEDIA RESEARCH PARTNERS LIMITED | 08522561 | 09/05/2013 | Dissolved |
| Mobilesys Ltd | 03972544 | 05/05/2004 | Dissolved |
| PROTEXAL LIMITED | 10210502 | 02/06/2016 | Gold |
| WCL WIRELESS COMMERCE UK LIMITED | 03991828 | 15/01/2007 | Dissolved |
| WCL WIRELESS COMMERCE UK LIMITED | 03991828 | 10/06/2004 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CONNECT MANAGED SERVICES (UK) LIMITED | 02557464 | 04/09/1998 | 29/03/2000 | Silver |
| MBLOX UK LIMITED | 04334317 | 15/01/2007 | 12/03/2013 | Dissolved |
| MBLOX UK LIMITED | 04334317 | 04/01/2002 | 12/03/2013 | Dissolved |
| MOBILE ECOSYSTEM FORUM LTD | 04153382 | 02/02/2001 | 12/03/2024 | Gold |
| MOBILE ECOSYSTEM FORUM LTD | 04153382 | 02/02/2001 | 12/03/2024 | Gold |
| MONECOR (LONDON) LIMITED | 00851820 | 20/05/2013 | 01/05/2017 | Insolvent |
| PASSIVSYSTEMS LIMITED | 06692246 | 30/06/2010 | 10/03/2020 | Insolvent |
| PHONE-PAID SERVICES AUTHORITY LIMITED | 02398515 | 01/06/2005 | 03/09/2008 | Silver |
| SINCH UK LTD. | 03049312 | 15/01/2007 | 11/03/2013 | Silver |
| SINCH UK LTD. | 03049312 | 26/01/2000 | 11/03/2013 | Silver |
| The Mobile Marketing Association (Uk) Ltd | 04120059 | 12/12/2001 | 01/01/2004 | Dissolved |