PurposePractitioners and academics have recently put a lot of emphasis on studying and improving how likely an organization will be successful in the long run. A company's capacity to thrive, excel and gain a competitive edge in today's market is increasingly dependent on the company's ability to adopt and successfully execute sustainable practices. The aim of this paper is to take a critical look at the relationship between total quality management (TQM) practices and business sustainability in the hospitality industry, with a focus on the hospitality sector; to evaluate the role of perceived organizational support (POS) and sustainable behavior in promoting long-term success and to make some suggestions for how these practices could be put into place.Design/methodology/approachThe data used were randomly collected from 361 hotel employees, covering both the five-star and four-star hotels. Descriptive and inferential statistics were employed to analyze the data. With the use of partial least squares structural equation modeling (PLS-SEM), the heuristic model was tested.FindingsThe results show that putting TQM practices into place leads to better company performance, higher productivity and steady growth for the business. In addition, empirical studies show that the link between sustainable behavior in TQM implementation and a sustainable company is strong, especially when coming to better governance and sustainability related to employees.Research limitations/implicationsThis paper offers guidelines for gauging employee's opinions of an organization's long-term viability. A two-factor model has been used to measure the sustainability of an organization and possible factors that can aid effective implementation of TQM practices have been suggested.Originality/valueThere is increasing recognition of the organizational support for successful TQM implementation, while yearning toward sustainability. Within the context of the hospitality industry, no previous research has empirically examined the synergistic moderating effect of POS and sustainable behavior on the relationship between TQM and sustainability.