This study is to investigate the effects of support program satisfaction in the organizational trust and the management performance for the start-up business to suggest institutes and working-level officials with an theoretical and practical implication. For this, we performed empirical analysis, in particular we examined mediation effects of the organizational trust. We surveyed a questionnaire for 247 start-up companies of incubation center. We performed reliability and correlation analyses etc. through SPSS 23 and performed structural equation model analysis etc. through Amos 23. As a result, first, pilot product, marketing, financial account, education and consulting appeared effective effects in management performance but law did not appear effective. Second, education and consulting appeared positive by mediation of the organizational trust. This means the organizational trust factor has to be considered in support programs like education and consulting.