| Company | Timeline | Status | |
| De Marmion (St Leonards) Ltd Director • Unreported | 21 Jan 2026←3 Days→Current | Active | |
| Twomlows Phase 2 Limited Director • Unreported | 12 Dec 2025←1 Month→Current | Active | |
| De Marmion (Harewood Hill) Ltd Director • Director | 4 Nov 2025←2 Months→Current | Active | |
| De Marmion Investments Ltd Director • Director | 19 May 2025←8 Months→Current | Active | |
| Cornerstone Partnership Management Limited Director • Director | 1 Jul 2024←1 Year 6 Months→Current | Active | |
| Cornerstone Joint Ventures Holdings Limited Director • Director | 17 Feb 2024←1 Year 11 Months→Current | Active | |
| Keystone Alliance Ltd Director • Company Director | 6 Feb 2024←1 Year 11 Months→Current | Active | |
| Willows 21 Ltd Director • Company Director | 12 Jul 2023←2 Years 4 Months→21 Nov 2025 | Active | |
| Cornerstone Partnership Group Limited Director • Director | 1 May 2023←2 Years 8 Months→Current | Active | |
| Gillettstone Housing Limited Director • Director | 15 Apr 2023←2 Years 9 Months→Current | Active | |
