SigmaRoc 

SigmaRoc plc, through its subsidiaries, invests in and/or acquires projects in the quarried materials sector. It also produces aggregates, stone, granite, concrete blocks or pre cast elements, asphalt, lime, limestone, ready-mix concrete, pre-cast concrete, and other stone products; supplies value-added industrial and construction materials; and provides shipping logistics, road contracting, waste recycling, and patent and licencing services, as well as engages in the limestone quarrying and processing. In addition, the company offers crushing stone, retaining wall system, and CO2 management services. It operates in the United Kingdom, Ireland, western Europe, Central Europe, and Nordics. The company was formerly known as Messaging International Plc and changed its name to SigmaRoc plc in August 2016. SigmaRoc plc was incorporated in 2004 and is based in London, the United Kingdom.