<p>The nonprofit organizational studies have extensively examined the factors influencing commitment in the formal governance. However, there has been limited exploration of the mechanisms facilitating inclusion within the day-to-day management of such organizations, particularly with regards to the most vulnerable individuals. This article endeavors to address this research gap by investigating these mechanisms within a specific nonprofit organization, namely the <i>Accorderie</i>s, which has prioritized inclusion as a fundamental aspect of its associative project. The role of day-to-day management in inclusion and diversity is rarely considered, even though governance combines formal and informal aspects. However, given the debates on diversity in management, this day-to-day management could shed new light on the inclusion process. For practitioners, it could be a valuable lever for overcoming certain pitfalls linked with the process of inclusion in governance. Our analysis adopts a mixed-method research approach, employing a combination of quantitative and qualitative analyses, involving focus group discussions conducted with six distinct autonomous <i>Accorderie</i>s. The findings of our analysis reveal how: (1) diversity can serve as a catalyst for promoting inclusion, and fostering a sense of belonging and recognition of uniqueness of all each individual, and (2) the exchanges and rules that underpin this nonprofit organization encourage people to be committed. These empirical findings lead us to emphasize the benefits of day-to-day management as a lever for inclusion of the most vulnerable, based on specific institutional rules and resources.</p>