In this article, Devin Thorpe features a variety of impact investing industry leaders who share insights about the importance of impact measurement and the types of tools they use to find their way through the “impact measurement maze.” For instance, many of the article’s participants reference B Lab, IRIS, and the iPAR system. Thorpe also quotes GIIN CEO Amit Bouri about the significance of impact measurement, and links to the GIIN’s Business Value of Impact Measurement report, “Impact measurement is a defining characteristic of impact investing and has been shown to have significant benefits to organizations that utilize it to inform business decisions.”