The article presents the original criteria-based approach to sharing risks between participants in a risk-divided partnership between government and business in high-tech industries. This is built on the basis of quantitative and qualitative criteria. They take into account the adaptation of each specific project to the conditions of the external and internal environment. A typology of the levels of the organizational and economic mechanism of risk management of a risk-divided partnership is proposed; and a functional matrix of typological levels is developed. The authors additionally discuss such an element of the mechanism as the formation of targeted enlarged groups (TEG) of risks in the implementation of a risk-divided partnership between the state and business in high-tech industries. © 2021, Springer Nature Switzerland AG.