Riptide Publishing: N. This is a LGBTQ publisher. They pay advances up to 2,000 for well-established authors.
Dark Regions: For the dark market: horror, etc. They may pay advances. I thought I read somewhere that they do, but make sure to check around. If you get offered a contract, be sure to make that one of your questions.
Down and Out Books: N. They are closed at the moment, but watch for re-openings of submission calls.
Bold Strokes Books: N. LGBTQ publisher. Pays advances in most cases. Be sure to check the guidelines for more info.
Some of these publishers accept adult books too so this list isn't only for YA. Like I always say, check Google and AbsoluteWrite for more info on these publishers. If you get offered a contract, please ask all the questions you need to ask before signing. Good Luck and Happy New Year to everyone!!!