Toseae Sanaye Tasisati Iran Co. was established in 1984 by a group of engineers with extensive experience in their  respective engineering fields: Toseae Sanaye Tasisati Iran (TSTI) has gained wide recognition and outstanding reputation through its quality workmanship, innovative engineering and project management skills enabling it to expand from being a mechanical and electrical (M&E) contractor into a full-service engineering and construction  contractor catering to major domestic and international clients. In its 23 years operation , the company has completed many of projects worth more than USD50Million dollars.  Projects such as  condominiums ,office buildings, factories, hotels , hospitals, universities and government facilities mainly utilities are the major achievements of TSTI.