Carolin Hümmer derives the components of the reputation of internal service providers based on a practical example within a global life sciences corporation. Using a two-stage measurement model, the theoretically and exploratively obtained insights are empirically tested using the Partial Least Squares approach, and a determination of the relevant reputation dimensions of internal service providers is made. The findings provide a valuable contribution to practice for the future design of reputation management and internal marketing of service providers within a corporation, as well as in the broader context of intra- and inter-organizational networks, and offer starting points for further research projects.