| Company | Timeline | Status | |
| Port Edgar Yacht Club Limited Director • Retired | 9 Apr 2021←4 Years→Current | Active | |
| 3dreid London Limited Director • Architect | 13 Jan 2017←2 Years 9 Months→31 Oct 2019 | Active | |
| 3dreid Scotland Limited Director • Architect | 12 Jan 2017←2 Years 9 Months→31 Oct 2019 | Active | |
| 3dreid Manchester Limited Director • Architect | 12 Jan 2017←2 Years 9 Months→31 Oct 2019 | Active | |
| 3dreid Birmingham Limited Director • Architect | 12 Jan 2017←2 Years 9 Months→31 Oct 2019 | Active | |
Reid Architecture Scotland Limited Director • Director | 18 Sep 2007←7 Years→30 Dec 2014 | Dissolved | |
Reid Architecture Birmingham Limited Director • Director | 18 Sep 2007←7 Years→30 Dec 2014 | Dissolved | |
Reid Architecture London Limited Director • Director | 18 Sep 2007←7 Years→30 Dec 2014 | Dissolved | |
John R. Harris Architects Limited Director • Director | 18 Sep 2007←7 Years→30 Dec 2014 | Dissolved | |
| Geoffrey Reid Associates Limited Director • Director | 18 Sep 2007←12 Years→31 Oct 2019 | Dissolved | |
