International Journal of Contemporary Research in Multidisciplinary

The relationship between mentorship as a dimension of entrepreneurial ecosystem and sustainable competitive advantage of certain segment of industry within Nigeria South-South region was investigated.Cross-sectional survey research design used with administrative staff of some firms in certain industry ofNigeria South-South as the study population. As a result, many of the target firms were research unfriendly, the population of the study was two hundred and ten administrative staff, as such, the researcher does not bother reduce the population as it could be easily covered. To administer the research instrument (questionnaire), we made use of simple random sampling technique. The hypotheses were tested with Structural Equation Modeling –AMOS. The findings revealed positive relationship between mentorship as entrepreneurial ecosystem and only operational excellence as a measure of sustainable competitive advantage. Therefore, it was suggested that mentorship ought to be fortified among entrepreneurs to be an impetus to improving only operational excellence as sustainable competitive advantage.