Semac Group, based in Greece, consists of Semac Construction S.A. and Semac Automation S.A. Semac Construction is a leading c ... ontractor & manufacturer, specialising in the Oil & Gas, Power & Energy Industries by undertaking electro-mechanical EPC and other contracts and delivering complete prefabrication solutions (metering skids), suitable for processing, treating & fiscal measuring of gases & liquids. Semac Automation is a leader in measurement instrumentation, services and solutions for industrial process engineering. We provide process solutions for flow, level, pressure, temperature, analytics, drives, recording and digital communications, optimising processes in terms of economic efficiency, safety & environmental impact. read more