Centers for independent living (CILs) and vocational rehabilitation (VR) agencies offer transition services that many youth with disabilities could benefit from, but little is known about the existence of and potential for collaborations between these agencies. In this study, we examined data from VR agencies to assess their relationships with CILs involving transition-age youth at the national and state levels, focusing on two types of collaborations: referrals from CILs to VR agencies and VR youth’s use of CIL services. Although many CILs and VR agencies do work together, their relationships vary, and these collaborations reflect only a small fraction of VR youth who are transition age. Further, for each collaboration type, the VR youth involved in these collaborations differ from other people who apply for or use VR services in terms of their characteristics and service use patterns. The findings point to opportunities for greater collaboration between CILs and VR agencies. They also indicate a need for more research to understand the optimal formats and contexts for such collaborations and the criteria for effectively promoting them at the person and agency levels.