Sappho asked in the Lounge if anyone had a list like this, and I remembered this site
Branching Out Guide to Independent Presses
which is a terrific listing, with plenty of detail, of independents from Tiny, via Small and Medium, to Faber, Bloomsbury and some US presses. It's really aimed at librarians, but it's just as useful for writers: there are far more than the usual suspects, with website and email links and examples of titles, and each listing gives a really good flavour of what each press might be likely to be looking for. Well worth a browse if you're looking for a home for your book, whatever sort it is.
Emma