Abstract: As U.S. post-9/11 veterans leave the military and enter the military-to-civilian transition phase, they navigate cultural and social identity adjustments, and their well-being is impacted by factors that are distinct to them. Post-9/11 veterans are a younger, more demographically diverse subpopulation of military veterans with higher prevalences of trauma exposure, mental disorders, life stressors (e.g., perceived underemployment, financial strain), and service-induced injury and disability than prior veteran cohorts and civilians. A previous large, longitudinal veteran study established that some post-9/11 veterans struggle to assimilate, particularly females, people of color, and those in the lowest enlisted pay grades. Using data findings from this longitudinal study, the online Veteran Transition Screener (VTS) was developed to equip veteran-serving providers with real-time data reports on clients' military-to-civilian transition assimilation status and risks (e.g., demographics, specific experiences [i.e., adverse childhood experiences, combat exposure, military sexual trauma, moral injury], employment, education, finances, health, social relationships). By empirically matching a veteran's individualized risks to research-derived predictors of well-being and by providing a VTS client report that includes action-oriented, research-informed recommendations, a veteran-serving provider's selection of effective program components for prevention and intervention is better informed. Results from a pilot test of VTS's functionality and utility demonstrated satisfaction by two veteran-serving organizations that used VTS with 32 veteran clients. This pilot justifies quasicontrolled studies to assess the value of possible large-scale implementation. VTS, if scaled, could potentially strengthen individualized veteran support, and aggregated veteran data could become predictive analytics that further inform veteran programs, practices, and policies.