Factors effective on entrepreneurship in small and medium enterprise

Generally, business environment consists of some factors that influence corporation performance but managers are not able to change them easily. If an entrepreneur has sufficient and appropriate knowledge of the environment, he is able to set up and manage a business effectively. He will avoid some risks and so his rate of success will increase. Environment suitable to entrepreneurial activity has its potential impact on steady and long term development in a special region. In this study, firms including oil pipeline and telecommunication, oil product distribution company, national gas company were ranked regarding to sub‐scales related to different levels of factors effective on success in small and medium enterprises of petroleum industry by using fuzzy hierarchical analysis (FAHP) and fuzzy TOPSIS. The results obtained from both methods indicate that pipeline and telecommunication company in petroleum industry are more important than national gas company and oil product distribution company in oil industry.