Have you heard of Month9Books? They are an independent publisher who formed in 2011 and are based in the US. They publish YA, MG and New Adult books - some of which you may have heard of recently such as A Shimmer of Angels by Lissa M. Basso and Two and Twenty Dark Tales, an anthology.
They may be a little fish swimming in a HUGE ocean, but I predict great things from this publisher. Take a look at some of their upcoming releases and tell me you're not intrigued. I know I am!