| Company | Timeline | Status | |
| Calmac Ferries Limited Director • Director | 12 Feb 2025←9 Months→Current | Active | |
| David Macbrayne Limited Director • Director | 12 Feb 2025←9 Months→Current | Active | |
| Argyll Ferries Limited Director • Director | 15 Apr 2024←1 Year→13 May 2025 | Dissolved | |
| David Macbrayne HR (UK) Limited Director • Director | 15 Apr 2024←1 Year 7 Months→Current | Active | |
| Northlink Ferries Limited Director • Director | 15 Apr 2024←1 Year 7 Months→Current | Active | |
| Argyll Ferries Limited Director • Chief Executive Officer | 31 Jan 2022←7 Months→16 Sep 2022 | Dissolved | |
| Cowal Ferries Limited Director • Chief Executive Officer | 31 Jan 2022←7 Months→16 Sep 2022 | Dissolved | |
| Rathlin Ferries Limited Director • Chief Executive Officer | 31 Jan 2022←7 Months→16 Sep 2022 | Dissolved | |
| David Macbrayne HR (UK) Limited Director • Chief Executive Officer | 31 Jan 2022←7 Months→16 Sep 2022 | Active | |
| Northlink Ferries Limited Director • Chief Executive Officer | 31 Jan 2022←7 Months→16 Sep 2022 | Active | |
