| Company | Timeline | Status | |
| RSK (Ireland) Limited Director • Director | 14 Jan 2020←5 Years→Current | Active | |
| RSK Biocensus Limited Director • Director | 5 Dec 2019←6 Years→Current | Active | |
| Headland Archaeology (UK) Limited Director • Director | 12 Nov 2019←6 Years→Current | Active | |
| RSK Stats Limited Director • Company Director | 9 Jan 2016←5 Years→21 May 2021 | Dissolved | |
| RSK Group Plc Director • Unreported | 11 Dec 2007←14 Years→21 Jun 2022 | Converted/Closed | |
| Structural Soils Limited Director • Environmental Scientist | 30 Nov 2007←6 Years→2 Dec 2013 | Active | |
| RSK Radiological Limited Director • Environmental Scientist | 11 Sep 2007←18 Years→Current | Active | |
| RSK Resourcing Limited Director • Environmental Scientist | 15 Nov 2006←14 Years→21 May 2021 | Dissolved | |
| RSK Group Limited Director • Environmental Scientist | 2 Nov 2005←20 Years→Current | Active | |
| Remedx Limited Director • Environmental Scientist | 17 Nov 2004←21 Years→Current | Active | |
