Publishers
Every publisher in the catalog, from the majors to single-book imprints.
- Type O Comics
- Typocrat
- Tyson Blue
- Tähden etsijät
- U. P. James
- U. S. Camera
- U. S. Consumer Product Safety Commission
- U.P. Comics
- U.S. Army Air Forces, Office of Flying Safety
- U.S. Army Air Forces, VII Fighter Command
- U.S. Classics Series
- U.S. Comics
- U.S. Department of Health and Human Services Centers for Disease Control and Prevention
- U.S.A. Comics
- U.S.N. Personnel Separation Center
- UGLI Studios
- URSUS Studios
- US Army Armor School
- US Army Medical Department
- US Department of Agriculture
- US Department of Health and Human Services
- US Department of Health, Education and Welfare
- US Department of the Treasury, Bureau of Alcohol, Tobacco, and Firearms
- US Pictorial
- USNA Publications
- Ubi Workshop
- Ubisoft Entertainment
- Udon Comics
- Uisila Comics
- Ulrich Merkl
- Ulrich Proeteheimer
- Ulrik Nilsson
- Ultem
- Ultimate Creations
- Ultimate Sports Force
- Ultraist Studios Inc.
- Uncharted Wilderness Studios
- Uncivilized Books
- Undead Press
- Undercurrent Comics
- Underglow Comics
- Underground
- Underground Comics
- Underhanded Comics
- Underwood Books
- Unicorn Comics
- Union Carbide and Carbon Corporation
- Union Square & Co.
- United Fanzine Organization
- United Feature Syndicate
- United Front Press
- United Labor Committee of Massachusetts
- United Labor League of Ohio
- United Methodist Publishing House
- United Newspapers
- United Plankton Pictures, Inc.
- United Publications
- United States Army
- United States Department of Justice
- United States Department of the Interior
- United States Information Agency
- United States Information Service
- United States Marine Corps
- United States Postal Service
- United States Rubber Company
- United States Treasury
- United States Trotting Association
- United Transportation Union
- Unity
- Universal Comics
- Universal Feature and Speciality Co.
- Universal Records Publishing
- University Press of Mississippi
- University of Arizona Press
- University of British Columbia Fine Arts Gallery
- University of California Press
- University of Chicago Press
- University of Hawai'i Press
- University of Illinois Press
- University of Iowa Press
- University of Kansas
- University of Kentucky
- University of Leeds's Doctoral Training Centre in Low Carbon Technologies
- University of Oklahoma Press
- University of Pittsburgh Press
- University of Rhode Island
- University of Texas Press
- University of Toronto Press
- University of Virginia
- Unknown
- Unknown Australian Publisher
- Unknown Publications
- Unknown Supermarket
- Unleashed Comics
- Unlikely Heroes Studios
- Unlimited Comics
- Unorthodox Press
- Unparalleled Comics
- Unsane Ink
- Unshaven Comics
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