| Company | Timeline | Status | |
| Cello Health Insight Ltd Secretary • Unreported | 21 Dec 1992←14 Years→19 Apr 2007 | Dissolved | |
| Cello Mruk Research Limited Secretary • Unreported | 4 Mar 1992←15 Years→19 Apr 2007 | Dissolved | |
| Cello Health Consulting Ltd Secretary • Unreported | 26 Sep 1991←15 Years→10 Apr 2007 | Dissolved | |
| Market Research North East Ltd Secretary • Unreported | 24 Sep 1991←34 Years→Current | Active | |
