This study identifies safety leadership factors affecting construction site safety and organizational safety climate, offering suggestions for adopting optimistic leadership styles and a zero-accident vision. The literature review is done exclusively for identifying factors and improving core knowledge. This study developed a questionnaire to examine the relationships between the organizational safety climate and the safety leadership styles. The questionnaire was distributed to construction companies from all over India. The statistical analysis encompassed 396 verified responses from the survey, yielding an impressive 79.20 percent response rate. The valid responses collected were analysed to find the relative importance index and the association between the categorical variables. The results showed that “personal safety knowledge” ranked the highest while performing the relative importance index analysis. Furthermore, the chi-square analysis found two pessimistic leadership styles, namely “laissez-faire leadership” and “management-by-exception”, significantly associated with the safety climate. The study implies that the target audience must avoid adopting the two pessimistic leadership styles to improve the organizational safety climate. This study examines the various safety leadership styles practised among construction professionals for the first time in India. Specifically, it identifies critical factors that affect the organizational safety climate and pessimistic leadership styles that diminish the safety outcomes of the construction site. The results act as an eye-opener for the targeted audience (like senior and middle-level management professionals, academicians, and upcoming researchers) to enhance the safety of construction sites by adopting optimistic leadership styles with an idea of a ‘zero accident’ construction premises.