| Company | Timeline | Status | |
| Pegley D'Arcy Limited Director • Architect | 23 Jan 1992←33 Years→Current | Active | |
| Black Box Limited Director • Architectural Designer | 20 Jun 1991←23 Years→17 Feb 2015 | Dissolved | |
| Black Box Limited Secretary • Unreported | 20 Jun 1991←8 Years→1 Sep 1999 | Dissolved | |
| Recording Architecture Limited Director • Architect | 29 Jan 1991←23 Years→16 Sep 2014 | Dissolved | |
| Recording Architecture Limited Secretary • Architect | 29 Jan 1991←8 Years→1 Sep 1999 | Dissolved | |
| Longsongs Music Limited Director • Architect | 23 Jan 1991←34 Years→Current | Active | |
