| Company | Timeline | Status | |
| Langley Mechanical Limited Director • Director | 23 Jan 2004←21 Years→Current | Active | |
| Langley Mechanical Limited Secretary • Director | 23 Jan 2004←21 Years→Current | Active | |
| Langley Mechanical Services Limited Director • Director | 13 Apr 1991←34 Years→Current | Active | |
| Langley Mechanical Services Limited Secretary • Unreported | 13 Apr 1991←34 Years→Current | Active | |
