| Company | Timeline | Status | |
| Callan Method Group Limited Director • Unreported | 9 Apr 2016←9 Years→Current | Active | |
| Callan Online Limited Director • Unreported | 9 Apr 2016←9 Years→Current | Active | |
| Callan Works Limited Director • Unreported | 9 Apr 2016←9 Years→Current | Active | |
| Callan Method Organisation Limited Director • Company Director | 9 Apr 2016←9 Years→Current | Active | |
AD. Iq Limited Director • Director | 16 Dec 2005←1 Year 5 Months→31 May 2007 | Dissolved | |
Compton Whistler Ltd Director • Business Consultant | 24 Nov 2005←11 Years→29 Aug 2017 | Dissolved | |
| Data Analysis Solutions Limited Director • Unreported | 1 Nov 2005←20 Years→Current | Active | |
| Fareshare 1ST Limited Director • Company Director | 4 Apr 2005←10 Years→13 Apr 2015 | Active | |
