Is there an organisation fighting pseudo science?

one that comes to my mind is the james randi foundation. james randi is a magician (one of the kind where everyone knows its just a trick) and travels around revealing psychics and people like that as charlatans. you might want to check him out on youtube, his videos are pretty fun to watch.
i dont know, though, if his foundation has a high demand for new members, but just check it out.