| Company | Timeline | Status | |
| Michael Collins Architects (Hertfordshire) Limited Director • Architect | 30 Apr 2025←6 Months→Current | Active | |
| Michael Collins Architect LLP Designated LLP Member • Unreported | 2 Oct 2017←8 Years→Current | Active | |
| Anna Collins Projects LLP Designated LLP Member • Unreported | 28 Feb 2017←8 Years→Current | Active | |
