| Company | Timeline | Status | |
| McQuillan & Clune Limited Director • Unreported  | 25 Sep 2015←10 Years→Current  | Active  | |
| McQuillan Boiler Services Limited Director • Unreported  | 1 Sep 2015←10 Years→Current  | Active  | |
| McQuillan & Clune Limited Secretary • Secretary  | 11 Apr 2009←16 Years→Current  | Active  | |
| McQuillan Boiler Services Limited Secretary • Unreported  | 12 Dec 2003←21 Years→Current  | Active  | |
McQuillan Boiler Services (Southern) Limited Director • Director  | 10 Sep 2001←14 Years→15 Dec 2015  | Dissolved  | |
| McQuillan Electrical Contractors Limited Director • Director  | 3 Oct 2000←24 Years→17 Dec 2024  | Dissolved  | |
