| Company | Timeline | Status | |
| A. & G. Cairncross Limited Director • Chairperson | 22 Jul 1989←34 Years→9 Oct 2023 | Active | |
| William Rennie & Co. Limited Director • Company Secretary | 31 Dec 1988←34 Years→9 Oct 2023 | Liquidation | |
| William Rennie & Co. Limited Director • Unreported | 1 Jan 1970←53 Years→9 Oct 2023 | Liquidation | |
