The aim of this study is to examine Turquality-supported automotive companies in the context of environmental sustainability on the axis of their sustainability reports. Accordingly, Turquality-supported companies that published sustainability reports in 2024 were examined using the document analysis technique, which is one of the qualitative research methods. In this study, in which the visibility of environmental sustainability in sustainability reports is investigated; A comprehensive content analysis was made in the context of the keywords in the literature. In the analysis, it was determined that words such as "emission", "product", "production", "energy", "waste" came to the fore in the reports. On the other hand, it has been determined that words such as "green building", "restoration", "biodiversity", "eco-product", "eco-efficiency", "land use" are very low visibility in company reports. In the company-based comparison, it was determined that Assan Hanil was ahead of other companies in terms of environmental sustainability visibility, followed by Otokar and Karsan with close scores. Ditaş, on the other hand, has been revealed that the visibility of the environmental sustainability phenomenon is less than other companies in terms of reports.