Susan Hill's publishing company will do one fiction book a year:

http://www.susan-hill.com/pages/books/new_fiction_submissions.htm

She says:

I will pay an advance of £1,000, which is what every Long Barn Books author receives, no matter who they are or what book they have written. Royalties etc and other contractual matters to be agreed. I will publish the book straight into paperback format and will be its editor.

To save myself from a deluge of unsuitable manuscripts, I am setting some fairly strict conditions for those who would like to submit novels for consideration.

1. ONLY submissions from established literary agents, or via University Creative Writing Degree and Diploma courses will be considered and the novels must be by previously unpublished novelists (though I am happy to consider novels by published non-fiction writers.) The age of the writer is immaterial but they must be citizens of the UK.
2. ONLY the first three chapters of a novel should be submitted initially and ONLY in electronic form, via e-mail, as PDF or word attachment. If I wish to read more, I will invite the author to submit the rest.
3. I am not interested in novels in the genres of Science Fiction and Fantasy, Romance, or novels for children/young people.

More appealing than Macmillan?
Emma

At least she's very straightforward about her terms and conditions. And she has been there herself. Anyway, I've asked her for an interview so we can find out more.