Tadbir Eskan Company (TEC), a Knowledge-Based Iranian company, is established with aim of combination of Engineering and construction in design, manufacturing of Steel Structures and Equipment. This company was founded in 2002 with support of Tehran-Boston Engineers (TBE) consultant, the holding company with more than 57 years of experience in structure and water supply. since 2002 to present TEC has approached to some new fields of work like facade engineering,fire engineering, and some Interdisciplinary field in building industry. the most important fields of activity for TEC are: 1-design and engineering in general and special fields of architecture structural and mechanical engineering. 2-design and engineering in facade industry: -mechanize folding facade -mechanical sealing systems. - thermal and water proofing system. 3-fire strategy and fire engineering. 4-structural design 5- architectural services: - interior design - facade conceptual and Aesthetic design 6-manufacturing of prefabricated steel and special structures. 7-design and manufacturing of mechanical instruments and equipment. 8-design and manufacturing of mechanized folding facades, balconies, roofs and structural accessories. 9- implementation of glass and curtain wall systems. 10- implementation of rain screen facades and cladding 11-implementation of cold formed steel structures and facade substructures. Corporation with famous and pioneer international companies: - AM Group (Australian Holding Group) expert in door industry. *exclusive representative of AM group in Iran and middle east. - Mirage Doors (Australian Company) expert in folded facade and roller shutter doors. *exclusive representative of Mirage Doors in Iran and middle east. - Coopers Fires ( British Company) expert and pioneer in Smoke and Fire Curtains. *nonexclusive representative of coopers fire in Iran. - Werner Sobek (German Company) expert and pioneer in facade engineering.