Some publishers open and close their doors to submissions on a routine basis. It is hard to determine if they are open or shut to submissions and when you should submit.  The following five publishers are always open to submissions from publishers without agents or previous publishing experience. They are all respected publishers with good reputations. They are listed in no particular order.

Hotkey Books

Hotkey Books is an imprint of Bonnier Publishing which is part of the much larger international Bonnier AB, a large media group. They publish Children’s books and Young Adult fiction. To learn more read their full review here.

Daw
DAW is an imprint of Penguin books. They publish science fiction and fantasy books. DAW has published authors such as Marion Zimmer Bradley and Roger Zelazny. DAW has published many bestselling books and they have published Hugo award winning books. Read the full review here.

Persea Books
A respected publisher of fiction, non-fiction, poetry manuscripts, and literary young adults novel. The work they publish receives good distribution, particularly in academic circles. To learn more read our full review here.

Baen Books

Baen is one of the best known publishers of Science Fiction and Fantasy books. They are an independent company with good distribution.  To learn more, read the full review.

ABDO Books

ABDO Books is a publisher that focuses exclusively on educational books for children between the ages of 4-12. They sell a lot of books to schools and appear to be rather good at niche marketing. To learn more, read the full review.

Bio: Emily Harstone is the pen name of an author whose work has been published internationally by a number of respected journals. She is a professional submissions adviser. You can follow her on Facebook here: https://www.facebook.com/emilyharstone/