Marken: U
- University of Pennsylvania Museum of Archaeology & Anthropology
- University of Pennsylvania Press
- University of Pittsburgh Press
- University of Regina Press
- University of South Carolina Press
- University of Tennessee Press
- University of Texas Press
- University of Toronto Press
- University of Utah Press
- University of Utah Press,U.S.
- University of Virginia Press
- University of Wales Press
- University of Wales Press - IPSUK
- University of Washington Press
- University of Westminster Press
- University of Wisconsin Press
- University of the West Indies Press
- UniversityMedia
- Universitätsbuchhandlung Weger
- Universitätsverlag Hildesheim
- Universitätsverlag Ilmenau
- Universitätsverlag Kiel / Kiel University Publishing
- Universitätsverlag Wagner
- Universitätsverlag Winter
- Universitätsverlag Winter GmbH
- Universum
- Universum Film
- Univocal Publishing LLC
- Unix
- Unken Verlag GmbH
- Unleashed
- Unlimited
- Unlimited Media, Ltd.
- Unmasked Psychology
- Unnamed Press
- Uno
- Unofficial Guides
- Unold
- Unprocessed
- Unrast
- Unrast Verlag
- Unrast e.V.
- Unternehmergold GmbH
- Unterwegs Verlag
- Unterwegsverlag
- Unties
- Until I Wake
- Untior
- Unto Others
- Untouchables, The
- Unverlag
- UnyFunn
- Uomo Design
- Uovo
- UpLoad Publishing Pty Ltd
- Upchurch, Phil
- Update Displays
- Uperfect
- Upfly Books
- Upgraded Publishing
- Uphill Books
- Upindo
- Upingzi
- Upländer Bauernmolkerei
- Upper Room Books
- Uppertones, The
- Uppsala Books
- Upscale
- Upset Press
- Upsetters, The
- Upsidedown
- Upstart Press
- Upstart Press Ltd
- UrGarding
- Urachhaus
- Urachhaus/Geistesleben
- Urang
- Urania
- Urano
- Urano Publishing
- Urano World
- Urano World Spain
- Urantia Foundation
- Urban
- Urban & Fischer
- Urban & Fischer Verlag
- Urban & Fischer/Elsevier
- Urban Armor Gear
- Urban Armor Gear (UAG)
- Urban Aura
- Urban Classics
- Urban Cruiser
- Urban Decay
- Urban Fight
- Urban Fitness
- Urban Goddess
- Urban Iki
- Urban Jungle
- Urban Land Institute,U.S.
- Urban Pages Verlag
- Urban Pioneers, The
- Urban Proof
- Urban und Vogel
- Urban, Keith
- UrbanArtt
- Urbani Tartufi
- Urbanomic Media Ltd
- Urbes Verlag
- Urge
- Urgesta AS
- Uriah Heep
- Urikan
- Urim Publications
- Urmet Deutschland GmbH
- Urs Bernet
- Urs Verlag
- Ursel Carls Natur Verlag
- Ursini
- Ursula Herrmann, Wolfgang Berke
- Ursula Wüster