The goal of this interdisciplinary study is to analyze the entrepreneurial personality in the context of resources, environment, and the startup process based on a configurational approach. The study focuses on the startup process. A questionnaire was developed to measure the configuration areas of personality, personal resources, environment, and organizing activities. A representative sample of 1,169 nascent entrepreneurs and new business owner-managers was examined. Three startup configurations were found which reveal different patterns of personality characteristics. These patterns are interpreted in the context of aspects of the environment, the resources, and the startup process.