| Company | Timeline | Status | |
| Coastal Shipping Limited Director • Company Director | 9 Aug 2006←12 Years→20 Sep 2018 | Active | |
| Clarkson Port Services Limited Director • Company Director | 9 Aug 2006←12 Years→20 Sep 2018 | Active | |
| Marinet (Ship Agencies) Limited Director • Company Director | 9 Aug 2006←12 Years→20 Sep 2018 | Active | |
| Genchem Holdings Limited Director • Company Director | 9 Aug 2006←12 Years→20 Sep 2018 | Active | |
| Halcyon Shipping Limited Director • Company Director | 9 Aug 2006←12 Years→20 Sep 2018 | Active | |
| Small & Co.(Shipping)Limited Director • Company Director | 9 Aug 2006←12 Years→20 Sep 2018 | Active | |
| H. Clarkson & Company Limited Director • Company Director | 4 Jan 2006←12 Years→20 Sep 2018 | Active | |
J.O. Plowright & Co. (Holdings) Ltd Director • Company Director | 21 Mar 1991←14 Years→3 Jan 2006 | Dissolved | |
