Keller Group plc is engaged in specialist ground engineering. The Company�s services are used across the construction sector in infrastructure, industrial, commercial, residential and environmental projects. It has operations in North America, Australia, EMEA (Europe, the Middle East and Africa) and Asia. The Company�s services include piling and earth retention, specialty grouting, anchors, nails and minipiles, ground improvement and post-tension concrete. Keller offers a range of piling and earth retention systems, including diaphragm walls and marine piles. Specialty grouting is applicable to both new construction projects and to repair and maintenance work. Other applications include excavation support, settlement control and geo-environmental services to protect adjacent ground from contamination. In July 2013, Keller Group PLC announced the completion of the acquisition of North American Piling.