| Company | Timeline | Status | |
| Hull Technical Services Ltd Director • Unreported | 25 Feb 2020←5 Years→Current | Active | |
| John H.Whitaker (Tankers) Limited Director • Director | 1 Apr 1998←21 Years→29 Feb 2020 | Active | |
H. Raper Limited Director • General Manager | 10 Jul 1991←6 Years→16 Jun 1998 | Dissolved | |
