SIT S.p.A. SIT S.p.A. develops and manufactures gas appliance components and systems focused on safety, comfort, and performance for heating, smart metering, and related applications. The company operates through three primary business units—Heating & Ventilation, Smart Gas Metering, and Water Metering—offering products such as valves, burners, controls, smart gas meters, water meters, and climate control solutions including components for heat pumps and hydrogen-ready metering systems; it serves residential, commercial, and industrial customers with intelligent solutions for consumption measurement and energy efficiency. Founded in 1953 and headquartered in Padua, Italy, SIT S.p.A. maintains seven production plants, six R&D centers, and 11 commercial offices across Europe, America, Asia, and Australia, employing approximately 1,873 people and generating €299.5 million in turnover while serving 68 countries commercially. Recent developments include selection by the UK Government for hydrogen meter development, participation in major tenders such as a €13 million smart metering contract involving a group subsidiary, live laboratory demonstrations at ISH Frankfurt and Chillventa for heat pump innovations, and attendance at Mid & Small 2025 in Milan to engage investors, alongside ongoing investments in R&D exceeding €20 million in prior periods and expansion of its patent portfolio to 83.