SIT Headquarters are in Padua (Italy), where SIT La Precisa was founded in 1953 by brothers Pierluigi and Giancarlo de’ Stefani. SIT is divided into two Divisions: «Heating» and «Metering», with more than 2,500 employees and representative and sales offices located in Europe, America, Asia, Africa and Oceania. The production sites and research centres can be found in Italy (Rovigo and Macerata), the Netherlands (Hoogeveen), Romania (Brasov), Portugal (Lisbon), Tunisia (Tunisi), Mexico (Monterrey) and China (Suzhou). Constant investments in R&D and innovation have resulted in unique know-how, an increasingly broad range of products and the conquering of new markets. The quality system has been certified ISO 9001 since 1988 and VISION 2000 since 2001.