| Company | Timeline | Status | |
| John Oliver Partnerships Limited Director • Hair Stylist | 1 Jul 2025←4 Months→Current | Active | |
| John Oliver Academy Ltd Director • Hair Stylist | 23 Oct 2017←8 Years→Current | Active | |
| John Oliver (Norwich) Ltd Director • Unreported | 1 Apr 2012←13 Years→Current | Active | |
