INRIA actively supports this project. It has provided funding for Fabian Pedregosa to work on this project full time in the period 2010-2012. It also hosts coding sprints and other events.
Google sponsored David Cournapeau with a Summer of Code Scolarship in the summer of 2007 and Vlad Niculae in 2011. If you would like to participate in the next Google Summer of code program, please see this page