This document discusses youth work and sport organizations as an untapped workforce for delivering sport and physical activity opportunities. It identifies that youth workers from organizations like Boys and Girls Clubs, Scouts, and youth clubs could support strategies to engage more young people in sport. Additionally, it presents a case study of Active Community Enterprise (ACE), a partnership that engages university students as a workforce to support community sport clubs and programs. ACE demonstrates that students can be an untapped resource for volunteering in sport delivery if opportunities are built into their courses and training is provided. The document argues that youth organizations and universities could contribute more to increasing sport participation if aware of strategies and opportunities to get involved.