| Company | Timeline | Status | |
| Original Systems Thinking Limited Secretary • Retired | 1 Jan 2005←20 Years→25 Mar 2025 | Dissolved | |
| Original Systems Thinking Limited Director • Director | 31 May 1992←32 Years→25 Mar 2025 | Dissolved | |
| Original Systems Thinking Limited Secretary • Unreported | 31 May 1992←7 Years→1 Aug 1999 | Dissolved | |
