| Company | Timeline | Status | |
| Environmental Cooling & Heating Limited Director • Engineer | 3 Mar 2025←8 Months→Current | Active | |
| KRJ Cooling Services Ltd Director • Engineer | 2 May 2018←7 Years→Current | Active | |
| Environmental Air Control Limited Director • Engineer | 30 Jan 2017←2 Years 5 Months→2 Jul 2019 | Dissolved | |
| Environmental Air Control Limited Director • Director | 22 Mar 2012←13 Days→4 Apr 2012 | Dissolved | |
