Energy Sazeh Aban (ESA) company was established with the purpose of executing construction and industrial projects. ESA members consist of skilled engineers with outstanding reputations in management and executive positions who guarantee compliance of company projects with technical standards and goal-oriented schedules. Currently, ESA ranks 1^st in the field of buildings, 1^st in facilities and equipment, 4^th in water and 4^th in roads and transport. Around 160 people work at ESA; 30 at the central office and the rest distributed throughout various workshops in Tehran and other provinces. Furthermore, making use of different technical and administrative departments allows ESA to improve the quality of its services in a continuous dynamic that is indicated by the company’s rapid growth. Finally, ESA personnel are committed to following the company’s code of ethics in order to maintain client satisfaction as a ceaseless goal.