The main activity is the production of antennas and accessories for VHF, UHF, TETRA, cellular systems (LTE, UMTS, GSM) and W-Lan / Wi-Fi up to 6 GHz From February 2004 the SIRIO production and quality management systems are certified according to the ISO 9001: 2015 standard by DNV (DET NORSKE VERITAS). The company is technically and mechanically equipped to create innovative products, customize existing products and develop new projects to customer specifications. Since 1972 the company has had a remarkable growth in international markets and has gained a reputation as a reliable and high quality supplier in the telecommunications field.