| Company | Timeline | Status | |
| Calvert Studios (UK) Limited Director • Photographer | 5 Aug 1994←31 Years→Current | Active | |
| IMS Publications Ltd Director • Photographer | 29 Dec 1991←33 Years→Current | Active | |
| Calvert Studios UK & Spain Limited Director • Photographer | 29 Dec 1991←33 Years→Current | Active | |
