Some of them are crowdfunded, which has become problematic. There's a gulf between being crowdfunded and getting pros, versus more or less doing it in your basement.
Star Trek Continues
is the biggie and their funding is a mix. The big guy behind it is James Cawley. They are very big on trying to recreate the original TOS sets, costumes, etc. The guy playing Kirk is generally a voice over actor. Their Sulu is (I believe) a guy from Mythbusters? It's possible I've gotten a few of the productions confused.
was first called Phase II. Their site is currently under construction and I think they are on hiatus. They are also in the TOS era.
Star Trek Horizon
is Tommy Kraft's labor of love, a cheap (something like $50k), mostly greenscreened film set in the ENT era.
is purportedly the story of Garth of Izar (from the TOS episode, Whom Gods Destroy
). The production has been sued by CBS/Paramount for copyright infringement. Now, all of these productions are skirting that line if not crossing it, but Axanar really stomped on it by paying salaries, claiming to be an indie film and not a fan film, claiming to be better, etc. They also have a donor store where they are selling providing in exchange for a donation
knockoff merchandise, mainly models and patches, but apparently also apparel. There was a related coffee merchant who slapped their images onto bags of coffee (yes, really), including a picture of actor Tony Todd, who had left the production. Lots of uncomfortable irregularities (there's a good word for them).
Anyway, I blog about all of that insanity here - http://www.gandtshow.com/tag/semantic-shenanigans/
(some of those are links to the podcast, which is NSFW). The lawsuit is in Federal court and it is ugly.