I really don't know how Bowery Electric gets classified genre-wise, but I'd put them in a lineup with the artists you mentioned. Their self-titled and their album Beat are phenomenal. Your comment makes me miss Hundred Waters - are they making new music, you heard anything???
On the ambient front, easily my most listened to album over the last many years is Huerco S.'s album For Those Of You Who Have Never (And Also Those Who Have). At this point, I've listened to it hundreds of times and I'm still discovering more beauty.