The Wayne Foundation is a fictional charitable foundation started by Bruce Wayne (better known as Batman) and named for his father, Thomas Wayne.
The purpose of the foundation is predominantly to help the victims of crime and support community efforts to dissuade young people from turning to crime themselves.
The foundation has its own building in Gotham City called the Wayne Foundation Building which included a penthouse where Batman lived for a period of time instead of Wayne Manor. As such, it has a secret elevator which led to a matching Batcave in a secret sub-basement under the building.
It is implied that Bruce Wayne personally supports the organization from his own resources, but it received a major donation when Talia Head gave it the entire assets of LexCorp.