| Company | Timeline | Status | |
| Pfa Consulting Holdings Ltd Director • Chartered Civil Engineer  | 31 Oct 2022←3 Years→Current  | Active  | |
| Stratton Park Holdings Ltd Director • Unreported  | 1 Jan 2020←5 Years→Current  | Active  | |
| Pfa Ltd Director • Unreported  | 13 Nov 2009←15 Years→Current  | Active  | |
| Peter Finlayson Associates Ltd Director • Consulting Engineer  | 2 Apr 2002←23 Years→Current  | Active  | |
| Pfa Consulting Ltd Director • Consulting Engineer  | 3 Nov 1999←26 Years→Current  | Active  | |
| Stratton Park Ltd Director • Consulting Engineer  | 1 Feb 1995←30 Years→Current  | Active  | |
