| Company | Timeline | Status | |
| Selenium Developments Limited Director • Director | 19 Oct 2020←3 Years→22 Apr 2024 | Dissolved | |
| Wolff Onsite Limited Director • Chief Operating Officer | 1 Aug 2016←9 Years→Current | Active | |
| Wolffkran Limited Director • Chief Operating Officer | 13 Jul 2015←10 Years→Current | Active | |
| P.C. Harrington Contractors Limited Director • Company Director | 1 Apr 2014←8 Years→10 Apr 2022 | Dissolved | |
| Hevilifts Limited Director • Company Director | 1 Apr 2014←1 Year 1 Month→14 May 2015 | Dissolved | |
| Harrington Group Limited Director • Company Director | 1 Apr 2014←1 Year 1 Month→14 May 2015 | Active | |
| Slipform International Limited Director • Company Director | 1 Apr 2014←1 Year 1 Month→14 May 2015 | Dissolved | |
| Structural Systems (UK) Limited Director • Company Director | 1 Apr 2014←1 Year 1 Month→14 May 2015 | Dissolved | |
| P. & E. Harrington Plant Hire Limited Director • Company Director | 1 Apr 2014←1 Year 1 Month→14 May 2015 | Active | |
| P.C. Harrington Limited Director • Director | 15 Aug 2012←2 Years 9 Months→14 May 2015 | Active | |
