| Company | Timeline | Status | |
| Birchgrove Properties (Glasgow) Limited Director • Optician | 15 Feb 1990←20 Years→31 Jan 2011 | Active | |
Contact Lenses Limited Secretary • Unreported | 6 Jul 1989←2 Years 5 Months→1 Jan 1992 | Dissolved | |
| C. Jeffrey Black (Opticians) Limited Director • Ophthalmic Optician | 6 Jul 1989←2 Years 5 Months→1 Jan 1992 | Dissolved | |
| C. Jeffrey Black (Opticians) Limited Secretary • Unreported | 6 Jul 1989←2 Years 5 Months→1 Jan 1992 | Dissolved | |
