| Company | Timeline | Status | |
| Informed Risk Decisions Ltd Director • Information Security Consultant | 4 Sep 2015←10 Years→Current | Active | |
| Tscheme Limited Director • Information Security Consultan | 1 Jul 2004←7 Months→31 Jan 2005 | Active | |
| Jeffrey McCall Associates Limited Director • Computer Security Consultant | 14 May 1993←29 Years→13 Feb 2023 | Active | |
