The aim of this study is to examine the effectiveness of the Iran National Quality Award new model (INQA) in corporations that have implemented this model in Iran. This research aims to reveal the effects of implementation of Iran National Quality Award (INQA) New Model on seven dimensions of the Iranian companies which indeed are seven core factors of this model, i.e. Management & leadership, People, Processes, Resources, Customer & consumer results, Environment & community results, and Performance results.A mail survey was conducted on a simple random sample of 210 organizations that have achieved certification or appreciation during the implementation of INQA model in four rounds. 400 questionnaires were randomly distributed and 392 complete and correct questionnaires were returned. Descriptive and inferential statistics were employed to analyze the data.Results indicated that the highest positive impact of INQA New Model on the improvement of organizational performance of the surveyed organizations was on customers' area. Performance results, leadership and management, processes improvement, environment and society results, and finally better utilization of organizational resources were respectively other areas which are affected mostly. Also, this study found no significant relationship between the implementation of this model and the improvement of employees' conditions in the surveyed organizations. [ABSTRACT FROM AUTHOR]