| Company | Timeline | Status | |
| Tarmac Holdings (THL) Limited Director • Accountant | 15 Dec 2004←5 Months→16 May 2005 | Active | |
| Tarmac Trading Limited Director • Accountant | 12 Jul 2004←10 Months→16 May 2005 | Active | |
| Tilcon Scotland Limited Director • Director | 1 May 2001←4 Years→5 Aug 2005 | Active | |
| CMS-Pozament Limited Director • Accountant | 1 May 2001←4 Years→5 Aug 2005 | Liquidation | |
| TCR Aggregates Limited Director • Director | 1 May 2001←4 Years→5 Aug 2005 | Active | |
| Pozament Limited Director • Director | 1 May 2001←4 Years→5 Aug 2005 | Active | |
| Hepplewhite Quarries & Plant Hire Limited Secretary • Unreported | 30 Mar 2001←3 Years→17 Jun 2004 | Dissolved | |
| East Coast Slag Products Limited Director • Director | 30 Mar 2001←2 Years 10 Months→3 Feb 2004 | Active | |
| Tilcon (North) Limited Director • Accountant | 19 Mar 2001←4 Years→5 Aug 2005 | Active | |
| North Tyne Roadstone Limited Secretary • Unreported | 22 Feb 2001←3 Years→1 Jun 2004 | Active | |
