As Impact Investing takes off around the world, there is a growing need for transparency and data sharing. By increasing access to and accuracy of data, anyone interested in impact investing, whether its an organization or an investor, will get information on which enterprises are making the most impact, how the market is performing, how many people are involved in the sector, and much more. This clear and easy access to data will hopefully help to unlock the full potential of impact investing. This article gives links to impact investing data sites, as well as information on how to add to data archives, and access information on the field.