| Company | Timeline | Status | |
| Catalyst Frontier Group Limited Director • Business Executive | 13 Aug 2025←4 Months→Current | Active | |
Tanzania Scotland National Global Trust Limited Director • Group Chief Executive | 16 Mar 2012←2 Years 1 Month→25 Apr 2014 | Dissolved | |
Calderberg Intermediary Services Limited Director • Global Business Development | 1 Jul 2011←5 Years→22 Nov 2016 | Dissolved | |
Calderberg Systems Limited Director • Snr. It Profesional & Entrepre | 18 Sep 2007←9 Years→22 Nov 2016 | Dissolved | |
| Smilechildcare Director • Senior It Consultant | 25 Jan 2007←3 Years→31 Dec 2010 | Active | |
Calderberg Group Limited Director • Consultant | 19 Sep 1997←19 Years→15 Nov 2016 | Dissolved | |
