Research integrity climate is an important factor that influences an individual’s behavior. A strong research integrity culture can lead to better research practices and responsible conduct of research. Therefore, investigations on organizational climate can be a valuable tool to identify the strengths and weaknesses of each group and develop targeted initiatives. This study aims to assess the perceptions on integrity climate in three universities in Hungary. A cross-sectional study was conducted with PhD students, postdocs, and professors from three Hungarian universities. (...) The survey included demographic questions, such as gender, age, scientific field, academic rank, and the Survey of Organizational Research Climate. A total of 432 participants completed the survey. Our results show that postdocs and assistant professors perceived integrity climate more negatively than PhD students and full professors in every survey scale. Contrarily, PhD students perceive more positively than the other groups. Disciplinary differences show that researchers in the Biomedical sciences perceive regulatory bodies to be fairer when evaluating their projects than those in the Natural sciences. Natural sciences also perceive more negatively how the department values integrity when compared to Humanities. Humanities perceive more positively Advisor/Advisee Relations than Biomedical Sciences. Our results suggest that institutions should pay more attention to early career researchers, especially insecure and temporary positions like postdocs and assistant professors. They should provide RCR resources, socialize them in RCR, and set more reasonable expectations. Moreover, department leaders should develop initiatives to foster better integrity climates. (shrink)