Numberphile is made possible by support from the Mathematical Sciences Research Institute (MSRI), based in Berkeley, California.
The best mathematicians from around the world come to MSRI - usually for a semester - to target hot research topics. Sort of like a mathematical "Dream Team"!
And for several weeks each year, I visit them to collaborate on videos.
You can read more about MSRI at the institute's website.
Numberphile is also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science.
It supports programmes that reinforce a powerful notion: You don’t have to be a scientist to think like a scientist.
More at the Science Sandbox website.
Numberphile remains an independent project, but
it would not be possible without this support and encouragement.