Square One Publishers is an American publishing company founded in 2000 by Rubin "Rudy" Shur, a former Avery Publishing president. Shur is the Chief Executive Officer. Their offices are located on Herricks Road in Garden City Park, New York.
In April 2016, Square One Publishers acquired Ocean Publishing, located in Flageler Beach, Florida, with the intent to keep the Ocean Publishing name as an imprint. Later that year, Square One Publishers acquired the rights to five novels by James Misko, marking the entry into fictional titles.