Publishers – U
- U.X.L.
- UCL Press
- UCLA Chicano Studies Research Center Press
- UFA (BMG+Mohn)
- Ugly Duckling Presse
- Ulysses Press
- Unbound
- Undena Publications
- Unicorn Press
- Unicorn Publishing Group
- Uniformbooks
- Unión Musical Ediciones
- Unisa Press
- Universal Edition
- Universal Publishers
- Universe Publishing
- University College Cardiff Press
- University College Dublin Press
- University of Alabama Press
- University of Alberta Press
- University of Arizona Press
- University of Arkansas Press
- University of British Columbia Press
- University of Calgary Press
- University of California Press
- University of Chicago Press
- University of Cincinnati Press
- University of Delaware Press
- University of Exeter Press
- University of Georgia Press
- University of Glasgow
- University of Hawaii Press
- University of Hertfordshire Press
- University Of Huddersfield Press
- University of Illinois Press
- University of Iowa Press
- University of KwaZulu-Natal Press
- University of Luton Press
- University of Manitoba Press
- University of Massachusetts Fine Arts Center
- University of Massachusetts Press
- University of Michigan Press
- University of Minnesota Press
- University of Missouri Press
- University of Nebraska Press
- University of Nevada Press
- University of New Mexico Press
- University of North Carolina Press
- University of North Texas Press,U.S.
- University of Notre Dame Press
- University of Oklahoma Press
- University of Ottawa Press
- University of Pennsylvania Press
- University of Pittsburgh Press
- University of Regina Press
- University of Rochester Press
- University of South Carolina Press
- University of Tennessee Press
- University of Texas Press
- University of the Philippines Press
- University of the West Indies Press
- University of Toronto Press
- University of Utah Press,U.S.
- University of Virginia Press
- University of Wales Press
- University of Washington Press
- University of Wisconsin Press
- University Press of America
- University Press of Colorado
- University Press of Florida
- University Press of Kansas
- University Press of Kentucky
- University Press of Mississippi
- University Press of New England
- University Press of Southern Denmark
- UNSW Press
- Upfront Entertainment
- UpRoute
- Upside Down
- Upstart Press
- Urbanomic Media
- Urim Publications
- Usborne Publishing
- UT Orpheus
- Utah State University Press
- Uva Glee Club
- UWA Publishing