| Company | Timeline | Status | |
| WJN Holdings Partnership LLP Designated LLP Member • Unreported | 30 Mar 2021←4 Years→Current | Active | |
| Ke-Assured Limited Director • Director | 7 Aug 2020←5 Years→Current | Active | |
| WJN Partnership LLP Designated LLP Member • Unreported | 7 Nov 2018←3 Years→13 Sep 2022 | Dissolved | |
Bask Technology Limited Director • Company Director | 24 Oct 2012←3 Years→2 Feb 2016 | Dissolved | |
| Ke-Security Limited Director • University Professor | 7 May 2012←9 Years→15 Jun 2021 | Dissolved | |
| Gluco Technology Limited Secretary • Professor | 31 Oct 2003←22 Years→1 Dec 2025 | Dissolved | |
| A.F.Johnson Consulting Limited Director • University Professor | 18 Mar 2003←22 Years→Current | Active | |
| Gluco Technology Limited Director • Emeritus Professor Of Polymer Science & | 18 Dec 1998←26 Years→1 Dec 2025 | Dissolved | |
