So far, I'm published by Buzz Books USA (now defunct), St. Martin's/Griffin (as a contributor to an anthology), my poetry debut is about to happen with a tiny international Kasva Press (April, 2016), and my nonfiction again with a British university press, 2017 (part of an anthology again). I publish my shorts with magazines.
On Small Presses and Bookshops:
My initial (tiny, POD) publisher really treated me well and the book became a Kindle top seller, but print sales were limited to small, indie bookshops brought about by queries and my personal appearances. Having worked with Hastings Books for a while, I can say that just having distribution through Ingram's, etc., is not enough. A lot of small publishers are listed with them. The book has to be returnable or most shops will never carry it in quantity. Period. They also need a relationship with the buyers. People like to say all that is changing, but revamping their primary business model will only happen EXTREMELY slowly.
Small press experience was awesome, a great way to start building a fan base, but I kept my expectations in line. I knew there was a risk—and now the books are out of print. (I'm not interested in self-publishing and will consider a next step when I place the next book.) but I learned SO MUCH and feel immeasurably more prepared to take on the broader marketplace. I can't speak to St. Martin's and Kasva as in both cases I'm just a contributor but so far they have both been responsive and polite.