Employees well-being and satisfaction need to be the precedence of any successful organization that is aimed at achieving its objectives and customer satisfaction. Thus, the paper sought to scrutinize the connections among staff dedication and performance of deposit-taking Sacco’s in Nairobi, Kenya. The study adopted a cross-sectional census survey of forty-six (46) deposit -taking Sacco’s in Nairobi. Research data was gathered through a questionnaire in a descriptive design. The study utilized purposive sampling technique for the sample population. Reliability and validity of the variables was tested in a pilot study of three (3) deposit-taking Saccos in western part of Kenya. The data analysis was done by means of descriptive and inferential statistics as reinforced by Statistical Package for Social Sciences (SPSS). The research hypothesis was tested by means of regression analysis. The findings (R2 - 0.394; p-value=0.000) indicate that employee dedication has a significant impact on the performance of DT-Saccos in Nairobi, Kenya. The research has shown that staff dedication could pose a positive consequence on organizational performance. The study recommends that the senior managers of DT - Saccos should focus more on promoting labour dedication through effective communication, information sharing, employee participation in decision-making, transparent and accountable management and recognition of sterling personal achievement as they have been identified to affect organizational performance.