According to the importance of knowledge based firms in economic development and job creation, identification of strategies and factors affecting entrepreneurship development, supporting the commercialization of knowledge based products, and the environment in which those firms grow, are of paramount importance. The present research is applied in terms of goal, and is a descriptive survey in terms of data gathering method. The research population includes all the managers of the knowledge based firms located in the Science and Technology Park of Kerman (n=140), among which 103 managers are selected according to the Morgan's table, and a questionnaire is distributed using random sampling techniques. In this research, 50 development factors are recognized from a variety of methods, which are categorized in six groups. Next, the experts compared those factors. Then, the mentioned factors are ranked using Friedman test, as follows: development and technology center creation factors, socio-cultural factors, human resources factors, supportive factors affecting knowledge based institutions in producing technologies, governmental factors, and infrastructural factors.