The management of stable development of business entities requires the improvement of methodological approaches regarding their efficiency assessment. We think that the efficiency assessment should conduct a comparative analysis with other economic entities regarding the effectiveness of using existing amount of material, financial and labour resources. For a comparative assessment of the operational efficiency of Ukrainian enterprises the authors suggest the method of frontier stochastic analysis. The essence of this approach is to build a standard enterprise with the highest efficiency indicators and calculation of the efficiency coefficients. According to the results of statistical hypotheses testing it is determined that the translog function with the truncated distribution of a random component best describes the investigated functional dependences. According to the results of modelling the efficiency coefficients for every enterprise and period of investigation were received and on the basis of them the ranking of enterprises efficiency was made.