NCHRP Research Report 913: Compendium of Successful Practices, Strategies, and Resources in the U.S. DOT Disadvantaged Business Enterprise Program examines firms that have graduated from the federal Disadvantaged Business Enterprise (DBE) program or have successfully competed for state transportation agency contracts. It also explores the types of business assistance that contribute to the success of DBE firms. The report serves as a resource for staff in state transportation agencies, U.S. DOT, and other groups implementing the DBE program or providing business assistance. The DBE program provides small businesses owned and controlled by socially and economically disadvantaged persons with opportunities to participate on federally assisted highway contracts. As a requirement of receiving federal highway funds, state departments of transportation (DOTs) must administer the DBE program. FHWA provides oversight of the state DOTs’ operation of the program to ensure that they are in compliance with federal regulations. Information was needed on the business practices and experiences of successful DBE firms that have either graduated from the program, or actively participate in the program, and the role of the DBE program and DBE supportive services in contributing to that success. Under NCHRP Project 20-95A, a research team led by Keen Independent Research LLC conducted a survey of the 50 state transportation agencies plus the District of Columbia transportation agency and conducted in-depth interviews with state DOTs, trade associations, and DBEs to develop a definition and a profile of success. This research project provides the first national examination of DBEs that have been successful working with state DOTs, including program graduates. The report includes appendices that define success, profile successful DBEs, and describe state DOT initiatives for DBE success.