| Company | Timeline | Status | |
| AMC Tunnelling Ltd Director • Director | 1 Mar 2012←10 Years→7 Jun 2022 | Dissolved | |
| Dolmac (1989) Limited Secretary • Unreported | 25 Sep 1996←25 Years→13 Sep 2022 | Dissolved | |
| Dolmac (1989) Limited Director • Tunneller | 1 Mar 1996←26 Years→13 Sep 2022 | Dissolved | |
Dolmac Limited Secretary • Unreported | 30 Aug 1991←26 Years→1 Apr 2018 | Dissolved | |
Dolmac Limited Director • Tunneller | 30 Aug 1991←14 Years→12 Dec 2005 | Dissolved | |
