| Company | Timeline | Status | |
| PD 2007 Limited Director • Company Director | 31 Aug 1992←1 Month→30 Sep 1992 | Dissolved | |
| PD Ports Hull Limited Director • Company Director | 23 Aug 1992←1 Month→30 Sep 1992 | Active | |
| PD Logistics Limited Director • Director | 11 Oct 1991←11 Months→30 Sep 1992 | Active | |
| PD Ports Finance Limited Director • Company Director | 6 Jul 1991←1 Year 2 Months→30 Sep 1992 | Active | |
| Peterhead Towage Services Limited Director • Company Director | 15 Aug 1989←3 Years→30 Sep 1992 | Dissolved | |
| Glasgow Bulk Handling Limited Director • Company Director | 15 Aug 1989←3 Years→30 Sep 1992 | Dissolved | |
| Mattak Limited Director • Company Director | 15 Aug 1989←3 Years→30 Sep 1992 | Dissolved | |
| F.W. Allan & Ker Limited Director • Company Director | 15 Aug 1989←3 Years→30 Sep 1992 | Dissolved | |
| Roxburgh, Henderson & Company Limited Director • Company Director | 15 Aug 1989←3 Years→30 Sep 1992 | Dissolved | |
