| Company | Timeline | Status | |
| HR Wallingford Instrumentation Ltd Director • Director | 19 Nov 2019←3 Years→18 Nov 2022 | Dissolved | |
| Seazone Solutions Limited Director • Finance Director | 27 Jul 2017←5 Years→18 Nov 2022 | Active | |
| DRL Software Limited Director • Finance Director | 27 Jul 2017←5 Years→18 Nov 2022 | Active | |
| Aquaware Systems Limited Director • Finance Director | 27 Jul 2017←5 Years→18 Nov 2022 | Active | |
| Wallingford Limited Director • Finance Director | 27 Jul 2017←5 Years→18 Nov 2022 | Active | |
| Howbery Park Estates Limited Director • Finance Director | 27 Jul 2017←5 Years→18 Nov 2022 | Active | |
| Hydraulics Research Limited Director • Finance Director | 27 Jul 2017←5 Years→18 Nov 2022 | Active | |
| HR Mardyn Limited Director • Finance Director | 27 Jul 2017←5 Years→18 Nov 2022 | Active | |
| HR Wallingford Limited Director • Finance Director | 27 Jul 2017←5 Years→18 Nov 2022 | Active | |
| Dredging Research Limited Director • Finance Director | 27 Jul 2017←5 Years→18 Nov 2022 | Active | |
