| Company | Timeline | Status | |
| Tim Barfield Marine Limited Director • Director | 4 Jul 2024←1 Year 3 Months→Current | Active | |
| J D Riverside Construction Ltd Director • Marine Engineer | 6 Aug 2014←4 Years→15 Aug 2018 | Active | |
| D & R Engineering Limited Director • Marine Engineer | 1 Dec 2009←9 Years→30 Jun 2019 | Active | |
| Thames Voyages Limited Director • Boatyard Manager | 14 Jul 1997←28 Years→Current | Active | |
| Thames Voyages Limited Director • Boatyard Manager | 14 Jul 1997←27 Years→29 Apr 2025 | Active | |
