One of the methods that could improve the safety performance of construction organizations is the safety climate approach, which is helpful to know the existing maturity level of the safety climate andto develop plans to achieve the required level of maturity. Most of the existing safety climate tools were developed considering different industries in developed countries while construction was basedonly on few tools. Construction projects in the Gulf Cooperation Council (GCC) member countries are at a peak. This article, therefore, attempts to develop a safety climate assessment tool for the Omani construction industry. A mixed research method consisting of systematic review (N = 32), structured questionnaire (N = 102), and email interview ...