Risk means the acceptance of an unfortunate event and its effects. In other words, the effect of uncertainty on goals is called risk. This effect can be positive, negative or both. Uncertainty means that the occurrence of an effect or its consequence is unknown, the occurrence is unknown and its consequence is certain, the occurrence is certain and its consequence is unknown. Risk is an inherent part of all projects and its management improves performance in project management and the results of that project. Project risks are derived from aspects of scope, time and cost or affecting them; Therefore, their analysis and prioritization can play a significant role in the sustainable success of the project. New companies are facing dynamic and less experienced risks. For this purpose, in this research, the challenges and risks of Internet startups have been identified by experts in the form of 9 risks, and the interpretive structural modeling technique has been used to analyze and determine the levels of risks. . Based on the calculated prioritization, "theft of information of people in the network" is at the lowest level of risk and "not applying the right policy to collect fees from users of products" is obtained at the highest level of the risk model of new Internet companies. Also, relationships and mutual effects between risks have been identified using this technique.