The article raises a controversial topic of classifying business models of contemporary enterprises and justifies the necessity of their transformation, considering the factor of sustainability. The author analyzes various definitions of business models and proposes their own approach to interpretation. The article provides a traditional classification of enterprise business models, as well as the results of the author's scientific research in the field of sustainable economic growth. The paper highlights the advantages of platform-based business models over traditional models in terms of determining sustainability. It has developed a classification of digital enterprise business models based on various criteria and formulated the main directions for further development and improvement.