I want to vouch for Radius here. I spent 4 months as an intern on the data science team and loved it! Not only were the problems challenging and relevant, but the sheer curiosity and intellect of the other data scientists is astounding. Hands down, Radius has the best dataset in the world for businesses, including both traditional and non-traditional sources, and is building the best signal for the US Economy. If you want to work with bright data scientists on important problems, I would reach out to Shaun above^!
