As communities grapple with the harmful, inequitable effects of the COVID-19 pandemic, which have been particularly hard on low-income and marginalized youth, renewed attention has been directed toward how out-of-school time (OST) programs can help youth reconnect and re-engage. In this article, the results of a systematic literature review on the sponsors and partners that support OST programs for low-income adolescents are presented. The available research from ERIC, PsycINFO, Web of Science, and publications posted on the National Institute of Out-of-School Time's website were searched and synthesized on the types of organizations involved in OST programs, what they offered, and how they worked together to support youth in OST settings.