Due to the increasing relevance and importance of sustainable development pursuit, it can be assumed that organizations are striving to develop in a green direction. This is not only related to raising awareness of modern society but also to legal regulation and strategic documents for achieving the goals of sustainable development at the international level, especially affecting certain fields of activity such as energy or manufacturing. It is noticed that there is still a lack of definition in the scientific literature of what kind of organization is considered green. Therefore, it is appropriate to create a green organization benchmark against which organizations can assess their current level of greenness and identify areas for improvement. This research aimed to choose the most suitable approach for developing a green organization benchmark by examining the methods for evaluating an organization’s performance in terms of greenness according to defined attributes. Applying the methods of systematic and comparative analysis of scientific literature and strategic documents, content analysis, grouping, and synthesis, it was determined that the approach of resources of an organization can be considered the most suitable for creating a green organization benchmark. However, it is reasonable to supplement it with an evaluation of external environmental factors.