In achieving organizational excellence employers and employees need to work together in order to achieve the bank’s overall strategic goals. This research sought to determine the influence of Mckinsey’s 7s model on organizational excellence of Development banks in Kenya particularly the PTA bank. The Mckinsey’s 7s includes strategy, staff, style, skills, shared values, structure and systems and how they objectively affect the organizational success of the PTA bank. It is a model that holistically and effectively organized the development banks in Kenya. Together these factors determined the way the bank operated. It required people, skills and proper communication channels to increase profits and growth of the bank. The research study was a detailed process of application of each of the seven elements at the PTA Bank. The study adopted descriptive research design to adequately describe the variable of the study. The targeted population of the study was 130 employees from various department of PTA bank. A simple random sampling was used to conducted to eventually arrive at a sample size of 97 respondents. The researcher collected primary data by use questionnaires as tool of the study. Questionnaires would be used as the research tool piloted and determined their validity and reliability.