This paper explores whether Colombia's middle class is a cradle of entrepreneurship that drives innovation and business growth and fosters social mobility. Microeconomic data are used to characterize entrepreneurs by income group and business characteristics. While entrepreneurs appear to enjoy more income mobility than the average worker, it is not clear whether this is true for middle-class entrepreneurs in particular or if it is a result of entrepreneurship. Nor is there evidence that middle-class entrepreneurs' activity boosts economic growth. Instead, the findings suggest that businesses run by these entrepreneurs are characterized by low productivity.