| Company | Timeline | Status | |
| Lawson Trustees Limited Director • Haulage Contractor | 12 Nov 2004←21 Years→Current | Active | |
Tayside Training Company Limited Director • Haulage Contractor | 10 Feb 1989←4 Years→5 Jul 1993 | Dissolved | |
| Lawson Trailer Rentals Limited Director • Haulage Contractor | 13 Dec 1988←37 Years→Current | Active | |
| Harry Lawson Tankers Limited Director • Haulage Contractor | 13 Dec 1988←37 Years→Current | Active | |
| Lawson Properties Limited Director • Haulage Contractor | 13 Dec 1988←37 Years→Current | Active | |
| Harry Lawson Limited Director • Haulage Contractor | 13 Dec 1988←37 Years→Current | Active | |
| Harry Lawson Transport Limited Director • Haulage Contractor | 13 Dec 1988←37 Years→Current | Active | |
| Harry Lawson Haulage Limited Director • Haulage Contractor | 13 Dec 1988←37 Years→Current | Active | |
Tayside Training Company Limited Director • Haulage Contractor | 19 Oct 1987←16 Years→14 Apr 2004 | Dissolved | |
