This study adopted a descriptive research design which yielded both qualitative and quantitative data in order to interpret effects of managerial skills on the growth of SMEs. According to Mugenda and Mugenda (2012), research design describes how the research strategy addresses the specific aims and objectives of the study, and whether the research issues are theoretical or policy-oriented. The study Population included all Business incubators involved in MSE sector in Kenya. The target population of public incubators which includes Universities and research institutions were 67 incubatee businesses. The private incubators population comprised of 122 incubatees making the total population as 189 incubatees in Nairobi County. Population is the aggregate of all that conforms to a given specification. All items in the field of inquiry constitute a ‘universe’ or ‘population (Kothari, 2004).