State settlements with the tobacco industry increased the availability of funds that might be used for improving health outcomes and increased scrutiny of tobacco control funding overall. This research identified potential explanatory factors for state tobacco control funding and developed a conceptual framework to guide further exploration. Key informant interviews with 14 tobacco policy professionals were conducted to augment the information available in the scientific literature on funding influences. Interviews yielded a comprehensive list of 26 factors that were returned to key informants for ratings of importance using a modified Delphi process. Results indicate that the top funding influences are budgetary constraints, lobbying, advocacy, tobacco economy, legislative priorities, public opinion, and leadership by the governor or state legislators. A conceptual diagram is presented of all factors clustered into three categories. Further research is planned to quantify these factors and assess their explanatory value