Over the past six years, and growing dramatically leading up to and post-Paris COP 21 and Marrakesh COP 22, a movement of institutional and individual investors representing more than $5tn in assets under management have divested a portion of their fossil fuel investments and committed to divesting the balance in the next five years. The corollary of divesting fossil fuels is re-investing in the clean energy future. As an invitation to a larger discussion of how we can invest in a clean energy future, we created the Carbon Clean 200 (Clean200)—a list of the 200 largest companies worldwide ranked by their total clean energy revenues.