Solidarity is a principle oriented toward the common good that ensures that each person can have the necessary goods and services for a dignified life. As such, it is very often approached in a theoretical manner. In this empirical study, we explored the development of a culture of solidarity within an organizational context. In particular, we qualitatively investigated how a culture of solidarity can concretely spread within and beyond organizations by conducting 68 semi-structured interviews with members of three common good-oriented organizations located in the Philippines, Korea, and Paraguay. We found that a culture of solidarity develops through a three-step process that includes constructing the solidarity mission, sharing solidarity, and disseminating solidarity, which together form a virtuous circle. We further found that solidarity is not supported by constrained, instrumentalized, or sacrificial actions, but can instead be a free, authentic, and fulfilling way for members of an organization to flourish while serving the mission of their company.