Magazine publishing & distribution

I'm trying to discover if any charities produce glossy magazines or journals that are then marketed and distributed via commerial publishers/distributors?

These could be specialist publications that have a natural audience amongst the public at large.

I'm working for a charity that produces a first class 90-page historical magazine. It currently has a limited circulation, but with a proper publisher, it has the potential to reach thousands. I want to see if other charities have experience of such a venture.