The Cal-Bridge program consists of four distinct but interconnected programs: the Cal-Bridge Undergraduate Program, Summer Research Program, Doctoral Program, and Postdoctoral Program, which together create a comprehensive, end-to-end pathway for undergraduates from the diverse student population of the CCC, CSU, and UC systems through graduate school to a PhD, postdoctoral fellowship, and ultimately membership in the professoriate or tech workforce (see figure at right/left). Such a comprehensive, unified approach minimizes the likelihood of attrition at each transition (community college to 4-year university, bachelor’s degree to PhD program, PhD degree to postdoctoral fellowship and faculty position) leading to a higher rate of overall success than can be achieved by piecemeal approaches of disparate programs for each stage of the pathway.