Social entrepreneurial ventures thrive on diverse motivations, evolving through stages. This research delved into the dynamic shifts in motivations guiding social entrepreneurs across projects and initiatives in Tanzania. Despite numerous attempts by scholars to study and theorize the motivations of social entrepreneurs, there remains a significant gap in understanding the primary focus of social entrepreneurs’ involvement in various social entrepreneurship projects. This research aimed to address this knowledge gap by exploring the motivations that drive social entrepreneurs in Tanzania to engage in social entrepreneurship ventures. The study specifically investigated the CHEMA and Gongali Model cases. The respondents consisted of 20 social entrepreneurs, with 9 from CHEMA and 11 from the Gongali Model. The findings highlight the influence of personal experiences and backgrounds in establishing innovative social enterprises, emphasizing the importance of achieving successful outcomes. The study suggests that social entrepreneurs are motivated not only by their individual needs and goals but also by the satisfaction derived from witnessing the positive impact of their work on others. Successful entrepreneurship, the study argues, requires a focus on effecting changes at both the macro and micro levels. When the intended purpose of social entrepreneurs is achieved, it serves as a significant indicator of success. The report delves deeper into how these findings influence the overall infrastructure and mindset of social entrepreneurs in Tanzania. This research introduces a novel motivational model and connects it with critical success characteristics in social innovation projects, contributing to the advancement of social entrepreneurship research. Additionally, it proposes fundamental innovations in governance and operations within the field of social entrepreneurship. From the organizational context perspective, the findings contribute to a better understanding of the factors that contribute to the formation and growth of social enterprises in Tanzania.