| Company | Timeline | Status | |
| B L Hill Ltd Director • Director | 15 Aug 2025←3 Months→Current | Active | |
| LF J Hill Ltd Director • Director | 15 Aug 2025←3 Months→Current | Active | |
| JD Hill Holdings Ltd Director • Director | 24 Nov 2023←2 Years→Current | Active | |
| Jamiesons Services Ltd Director • Engineer | 11 Jun 2020←5 Years→Current | Active | |
| J.H. Mechanical Engineering Services Ltd Director • Pipe Fitter/welder | 14 Nov 2013←12 Years→Current | Active | |
| P. Hill & Sons Limited Director • Labourer | 14 May 2013←11 Years→12 Jun 2024 | Dissolved | |
