| Company | Timeline | Status | |
| Swanbridge (Works) Limited Director • Vet | 12 Jul 2016←9 Years→Current | Active | |
| Swanbridge Investments Limited Director • Vet | 11 Apr 2013←12 Years→Current | Active | |
| Swanbridge Veterinary Group Limited Director • Vet | 9 Mar 2010←11 Years→2 Jun 2021 | Dissolved | |
| J. H. Levison (Holdings) Limited Director • Vet | 4 Mar 2010←15 Years→Current | Active | |
| Swanbridge Bloodstock Limited Director • Unreported | 16 Dec 2009←16 Years→Current | Active | |
| J Levison Limited Director • Veterinary Surgeon | 6 Sep 2005←20 Years→Current | Active | |
