Among the top Fortune 100 U.S. companies, 97% claim to be global business citizens, primarily based on self-evaluated qualitative criteria. The purpose of this quantitative cross-sectional survey design study was to develop a self-administered survey and apply it to calculate a composite index rating that assesses the maturity level a company has attained toward becoming a global business citizen. The theoretical framework underpinning the research was based on the theory of global business citizenship (GBC) and accompanying four-step implementation process. The GBC theory was utilized to develop the research survey consisting of 1 qualifying question and 22 Likert-type questions. The survey was administered to a qualified random sample of business executives in the United States with 172 usable responses received. These survey questions were then rationalized via exploratory factor analysis (EFA). EFA identified ten key questions with strong eigenvalues and grouped the interrelated items into three factors. Subsequently, the EFA-computed eigenvalues were used to develop a composite index formula. The key findings revealed that only three factors explained 70% of the variance and were named VALUE, IMPLEMENT, and LEARN, as proposed in the GBC theory itself. Questions related to the ANALY step of the GBC theory were not significant. Social change benefits include providing business leaders with a quantitative tool to help communicate to their stakeholders the steps they have achieved toward becoming a global business citizen.