| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| OPTIMA DATA INTELLIGENCE LIMITED | 02915701 | 11/05/2007 | Dissolved |
| OPTIMA DATA INTELLIGENCE SERVICES LIMITED | 06233911 | 10/05/2007 | Dissolved |
| Optima Uk Ltd | 04033470 | 13/07/2000 | Dissolved |
| Suscom Ltd | 01372808 | 25/01/2008 | Dissolved |
| The Roger Patey Partnership Ltd | 04865197 | 19/09/2003 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| COLUMBUS TRAVEL MEDIA LIMITED | 02970942 | 20/09/1994 | 24/03/2000 | Gold |
| HIGHBURY NEXUS SPECIAL INTERESTS LIMITED | 02246954 | 01/11/1994 | 24/03/2000 | Dissolved |
| LITCHBOROUGH PARK MANAGEMENT COMPANY LIMITED | 03560866 | 11/01/2001 | 08/11/2004 | Silver |
| Media Week Ltd | 01834761 | 28/09/1991 | 14/11/1991 | Dissolved |
| NEXUS MEDIA COMMUNICATIONS LIMITED | 02785570 | 02/02/1993 | 24/03/2000 | Not Trading |
| Nbml Ltd | 02703051 | 09/04/1992 | 24/03/2000 | Dissolved |
| Nexus Conference & Exhibitions Ltd | 03424135 | 22/08/1997 | 24/03/2000 | Dissolved |
| Nexus Consumer Communications Ltd | 02858186 | 07/02/1994 | 24/03/2000 | Dissolved |
| Nexus Publishing Ltd | 03424176 | 22/08/1997 | 24/03/2000 | Dissolved |
| Nexus Web Media Ltd | 03424174 | 22/08/1997 | 24/03/2000 | Dissolved |
| PROFESSIONAL PUBLISHERS ASSOCIATION LTD | 00132310 | 15/10/1999 | 05/06/2000 | Bronze |
| Patey Doyle (Publishing) Ltd | 01252667 | 28/09/1991 | 14/11/1991 | Dissolved |
| Practical Pc Magazine Ltd | 02968671 | 16/09/1994 | 24/03/2000 | Dissolved |
| S G D Realisations Ltd | 02016419 | 28/09/1991 | 17/01/1992 | Dissolved |
| SEDCOM NETWORKS LTD | 04651045 | 01/02/2011 | 31/03/2019 | Gold |
| THE ASSOCIATION OF EVENT ORGANISERS LIMITED | 01646966 | 15/09/1999 | 10/04/2000 | Gold |
| The Hotel Channel Ltd | 04193259 | 06/10/2005 | 19/10/2006 | Dissolved |
| Track Record Publishing Ltd | 01963637 | 28/09/1991 | 14/11/1991 | Dissolved |