Xist Publishing

According to their website: "As the digital-first publisher for children, eBooks are our top priority. But we also know that parents love to snuggle up with their kids and flip through a picture book—so we do that too... Xist Publishing accepts submissions from authors and illustrators interested is sharing well-crafted stories with young audiences."

http://www.xistpublishing.com/wp/submissions-guidelines

Overmountain Press

According to their website: "Although we have published a few exceptions, we are now accepting regional (Southern Appalachian) titles ONLY. In reviewing a children’s manuscript for publication, we prefer to have copies of the illustrations at the same time we review the text. Very few publishers review in this way."

http://overmtn.com/seasonalsite/guides.php

Just Write Books

According to their website: "We publish a few books each year. We do not accept unsolicited manuscripts. If you have a book that you think fits with our current theme of Maine authors, Maine books and Maine stories; call or email to start a conversation."

http://www.jstwrite.com/index.php?id_cms=4&controller=cms

Spinning Moon Press

According to their website: “Spinning Moon Press is always looking for fresh, new voices for the Young Adult market.”

I could not find a logo for this company so I ... what? He's reading. It counts.  

http://www.timebanditbooks.com/about-us

Ripple Grove Press

According to their website: "We are a children's picture book publisher. We are looking for picture driven stories for children aged 2-6. Please do not send early readers, middle grade, or YA manuscripts. No religious or holiday themed stories. We want something unique, sweet, funny, touching, offbeat, colorful, charming, different, creative."

http://www.ripplegrovepress.com/submissions

They also have a facebook page where they sometimes post how many submissions they have received. No I'm not going to tell you the number. You'll have to go look it up :)

Islandport Press

According to their website: "We do accept and review unsolicited completed manuscripts. We will not accept or review a project based on a query only. Please read our catalog closely when considering whether to submit a book. We publish books about Maine, New Hampshire, and Vermont. That does not mean books that are just set in those states; they need to be about those states and characterize their culture and people... For children's books, we will consider picture books, story books, middle grade chapter books, and young adult titles. For middle grade and YA titles, you must submit a completed manuscript as well as a one-page synopsis of the book.."

http://www.islandportpress.com/company.html

Also check out: http://kathytemean.wordpress.com/2013/10/13/islandport-press

Floris Books

According to their website: "Thank you for considering Floris Books for your manuscript. We publish a wide range of books including adult non-fiction, picture books and children's novels. You can find information about how to submit your work to us below."

Note: books must have a Scottish theme

http://www.florisbooks.co.uk/write/submission-guidelines.html