DDH1 Limited provides specialized drilling services for the exploration, mining, and energy industries in Australia. The company offers diamond core drilling services for near-mine exploration, mine development, and production drilling activities of gold, nickel, copper, iron ore, and other metals; reverse circulation and air core drilling services for earlier stage exploration drilling activities; and reverse circulation and water bore drilling services to the iron ore industry. It also involved in the construction of drill rigs. The company was founded in 2006 and is headquartered in Canning Vale, Australia.