The main purpose of the present study is to investigate the impact of external factors on risk management in construction companies (case study in Hormozgan province). The research method was descriptive correlational. The statistical population includes engineers working on active projects, specialists and experts in Hormozgan province with a total of 120 people, Due to the limited number of the statistical population, all individuals were considered as the sample, but in multiple follow-up, 5 completed questionnaires were collected and statistically exploited. The research tool was a 36-item questionnaire developed and validated by Khaksar et al. One-way regression and Friedman tests were used to analyze the research hypotheses through SPSS / 23 software. The results showed that external factors influence the risk management of construction companies and there was a significant difference between the mean ratings of external factors affecting risk management in construction companies. The highest mean score was for the construct items and the lowest was for the job position items. In fact, the factors of tenure were: construction factor, economic and financial factor, administrative and organizational factor, social and cultural factor, technical and technological factor and job position factor in risk management in construction companies.