The contribution concentrates on calculation of efficiency of state non-profit organizations, i.e. state allowance organizations and state budget organizations. Efficiency is taken from two points of view. The first view concentrates on the system of providing public good. That means whether it is worth of providing public goods - Kaldor - Hick's Efficiency. The second concept is focused on efficiency of conceptual management, i.e. management of organizations providing public goods - Scale Efficiency. Following text is interested only in conceptual management. It explores possibilities of calculation of Scale Efficiency coefficient by means of the present day defined methods of the Data Envelopment Analysis. Thanks to it the new method of Data Envelopment Analysis is suggested. The conclusion slightly solves application of Data Envelopment Analysis transformed for the environment of governmental non-profit organizations in the Czech Republic.