Bloomsbury Journals is joining the Routledge Social Science, Arts & Humanities program.
Altogether, 46 titles, including 25 arts and humanities titles and 21 law titles, published under the Hart imprint, will now join the Routledge publishing program.
Dr David Green, Taylor & Francis Group's global journals publishing director said: "We are delighted that these highly regarded journal portfolios are joining Routledge where there is strong complementarity and investment in the areas of law, arts and the humanities."
Jonathan Glasspool, division m.d. at Bloomsbury said: "Bloomsbury continues to invest considerably in building its academic and professional book programme and growing its digital publishing programme in law and the humanities. Our academic journals will fit very well within the much larger Routledge journal portfolio."
Routledge said the two companies would "work closely to ensure a smooth transition for all journals, partners and stakeholders involved".
Earlier this week, Bloomsbury revealed it would stop signing new book projects in politics, international relations sociology.