The purpose of this article is to identify if the use of risk management by Brazilian startup entrepreneurs minimizes the level of investor uncertainty in the evaluation of these projects/ventures. In order to meet this objective, the methodology of the study consisted primarily of reviewing the literature on the topics of startup and risk management, in order to obtain a theoretical framework for the study. In addition, field research was applied with two groups: a) representatives of supporting institutions, accelerators and investors; b) startup entrepreneurs. The field survey, with an intentional sample, had the objective of knowing the perception of the interviewees about seven categories of risks inherent to projects of this nature, as well as if the management practices adopted by startup entrepreneurs contributed to the reduction of these uncertainties. The results indicated: a) a low level of knowledge about the topic of risk management; b) a slight similarity between groups in relation to the degree of importance of each category of risk; c) the three risk categories whose management practices indicated a lower incidence of use by entrepreneurs.