| Company | Timeline | Status | |
| Spectrum Energy And Information Technology Limited Director • Finance Director | 30 Jul 2020←12 Months→29 Jul 2021 | Dissolved | |
| Geoscan Limited Director • Finance Director | 30 Jul 2020←12 Months→29 Jul 2021 | Dissolved | |
| Spectrum Resources Limited Director • Finance Director | 30 Jul 2020←12 Months→29 Jul 2021 | Dissolved | |
| Spectrum Datagraphic Systems International Limited Director • Finance Director | 30 Jul 2020←12 Months→29 Jul 2021 | Dissolved | |
| Spectrum Information Technology Limited Director • Finance Director | 30 Jul 2020←12 Months→29 Jul 2021 | Dissolved | |
| Spectrum Geophysical Services Limited Director • Finance Director | 30 Jul 2020←12 Months→29 Jul 2021 | Dissolved | |
| TGS Geophysical Investments Limited Director • Unreported | 14 Feb 2020←1 Year 5 Months→29 Jul 2021 | Active | |
| TGS Geophysical Company (UK) Limited Director • Unreported | 14 Feb 2020←1 Year 5 Months→29 Jul 2021 | Active | |
