An integral element of maximizing positive postschool outcomes for youth with disabilities is interagency collaboration. Centers for Independent Living (CILs) can be critical service providers for youth and young adults with disabilities. This study explored CIL professionals' contributions in supporting transition-age youth. Furthermore, the study examined these professionals' perspectives of why CIL involvement is vital in transition service delivery. Eight dyads consisting of a CIL administrator and a CIL staff member providing direct services to transition-age youth with disabilities were interviewed from eight U.S. CILs. Thematic analysis of each interview transcript yielded themes related to the scope of services that CILs are providing in tandem with special education professionals, and why CIL professionals believe their involvement in secondary transition is critical. Findings included that interview participants delineated three overarching areas where CILs support transition-age youth while collaborating with schools. Furthermore, the findings showed that the crucial nature of CIL involvement in the transition service delivery process is rooted in several value-based principles. These five value-based principles were as follows: (a) Empowerment-, autonomy-, and independence-based, (b) youth-led and individualized, (c) strengths-based and goal-driven, (d) peer-based and disability-pride-driven, and (e) ensuring services were available and accessible. These findings, implications for practice, and future research directions are also discussed.