| Company | Timeline | Status | |
| Macvent SM Limited Director • Director | 31 Mar 2014←11 Years→Current | Active | |
| Mac-Ventilation LLP Designated LLP Member • Unreported | 17 Dec 2007←17 Years→Current | Active | |
| Aairecool Technical Services Limited Director • Secretary | 11 Dec 1991←1 Year 3 Months→23 Mar 1993 | Active | |
| Aairecool Technical Services Limited Secretary • Unreported | 11 Dec 1991←1 Year 3 Months→23 Mar 1993 | Active | |
Ventrac Sheet Metal Limited Secretary • Unreported | 14 Jul 1989←28 Years→28 Sep 2017 | Dissolved | |
Ventrac Sheet Metal Limited Director • Secretary | 14 Jul 1989←28 Years→28 Sep 2017 | Dissolved | |
