| Company | Timeline | Status | |
| William Friswell Limited Director • Director | 27 Feb 2020←5 Years→Current | Active | |
| W. Friswell And Sons Limited Director • Builder | 6 Apr 2008←17 Years→Current | Active | |
| W. Friswell And Sons Limited Director • Builder | 8 Jul 1999←5 Years→9 Aug 2004 | Active | |
| Professional Precincts Limited Director • Building Contractor | 16 Aug 1994←30 Years→20 Nov 2024 | Active | |
| W. Friswell And Sons (Properties) Limited Director • Builder | 30 Apr 1991←8 Years→8 Jul 1999 | Active | |
