| Company | Timeline | Status | |
| McAlister Armstrong & Partners Ltd Director • Architect | 12 Nov 2013←11 Years→28 Aug 2025 | Active | |
| Royal Society Of Ulster Architects Director • Architect | 30 May 2013←7 Years→29 May 2020 | Active | |
Architecture Engineering Alliance Limited Director • Architect | 5 Aug 2011←7 Years→25 Jun 2019 | Dissolved | |
| Barrie Todd Architects Limited Director • Architect | 20 Oct 2000←24 Years→28 Oct 2024 | Converted/Closed | |
| Todd Architects Ltd Director • Architect | 20 Oct 2000←24 Years→28 Aug 2025 | Active | |
| Todd (Holdings) Limited Director • Director | 31 Aug 2000←25 Years→28 Aug 2025 | Active | |
| Todd (Holdings) Limited Secretary • Unreported | 19 Jun 2000←19 Years→26 Nov 2019 | Active | |
| Royal Society Of Ulster Architects Director • Architect | 26 May 2000←11 Years→26 May 2011 | Active | |
| Todd Architects Ltd Secretary • Unreported | 22 Jan 1988←18 Years→1 Jan 2007 | Active | |
