Oneworld was founded in 1986 by husband and wife team Juliet Mabey and Novin Doostdar as an independent publishing house focusing on non-fiction for general and academic markets. It later added both a fiction list and a children's list, and now publishes across a wide range of subjects, including history, politics, current affairs, popular science, religion, philosophy, and psychology, as well as literary fiction, upmarket crime fiction and children's titles. The company now publishes more than a hundred titles a year.
In 2015 Oneworld launched Rock the Boat, a children's fiction and non-fiction imprint, and the following year established a crime imprint, Point Blank.