| Company | Timeline | Status | |
| Scancem Supply Limited Director • Managing Director | 7 Aug 1992←4 Months→31 Dec 1992 | Active | |
| Castle Cement Limited Director • Managing Director | 23 May 1991←1 Year 7 Months→31 Dec 1992 | Active | |
| Castle Cement (Pitstone) Limited Director • Managing Director | 23 May 1991←1 Year 6 Months→2 Dec 1992 | Active | |
| Tunnel Cement Limited Director • Managing Director | 23 May 1991←1 Year 6 Months→2 Dec 1992 | Active | |
| Castle Cement (Padeswood) Limited Director • Managing Director | 23 May 1991←1 Year 6 Months→2 Dec 1992 | Active | |
Ribblesdale Cement Limited Director • Managing Director | 23 May 1991←1 Year 6 Months→2 Dec 1992 | Dissolved | |
Clyde Cement Limited Director • Managing Director | 23 May 1991←1 Year 6 Months→2 Dec 1992 | Dissolved | |
| Castle Building Products Limited Director • Managing Director | 23 May 1991←1 Year 6 Months→2 Dec 1992 | Active | |
| Ketton Cement Limited Director • Managing Director | 23 May 1991←1 Year 6 Months→2 Dec 1992 | Active | |
| Castle Lime Limited Director • Managing Director | 23 May 1991←1 Year 6 Months→2 Dec 1992 | Active | |
