Marken: I
- Ilisso
- Illmann, Andreas
- Illuminate Publishing
- Illusive London
- Illy
- Ilse Jacobsen
- Ilse Jacobsen Hornbæk
- Ilti Luce
- Image
- Image Comics
- Imagebon
- Images Publishing Group
- Images Publishing Group Pty Ltd
- Imaginary Edge
- Imaginatio Divina Media
- Imaginations, The
- Imagine
- Imagine & Wonder
- Imagine Dragons
- Imago
- Iman Paris
- Imbrifex Books
- Imco
- Imex
- Imhof Verlag
- Imhof, Michael, Verlag GmbH & Co. KG
- Imhof, Petersberg
- Imiglikos
- Imkerei Doll
- Imlau, Margrit
- Immanion Press/Magalithica Books
- Immenroth
- Immich-Batterieberg
- Imminence
- Immobilien Zeitung GmbH
- Immobilien Zeitung Verlagsgesellschaft
- ImmobilienFachVerlag
- Immolation
- Immortal
- Immortal Disfigurement
- Immortal Press
- Imnasa
- Imomi
- Impac
- Impacs
- Impact Detect
- Impacts, The
- Impala
- Impalas, The
- Impedimenta
- Imperatrix
- Imperfect Publishing
- Impergom
- Imperia
- Imperial
- Imperial Pictures
- Imperial Riding
- Imperial War Museum
- Impericon
- Impericon Festival
- Impericon Festival x Rise Against
- Impericon Merchandise
- Impian GmbH
- Import
- Impresan
- Impress Books
- Impressions, The
- Imprimatur
- Imprint
- Imprint Academic
- Imprint Edition crayonne
- Imprium Bellatoris LLC
- Impronte
- Improve International Ltd
- Impuls Verlag
- Impulse Medien GmbH
- Imray, Laurie, Norie & Wilson Ltd
- Imready
- Imsky
- Imtradex
- In Der Tat Verlag
- In Easy Steps
- In Easy Steps Limited
- In Extremo
- In Flames
- In Hearts Wake
- In My Hood
- In The Mood
- In-Akustik / Ballrechten-Dottingen
- InLine®
- InMemory
- InVision Publishing | Sabrina Rudolph & Anja Rudolph GbR
- InVisions
- Inacopia
- Inagaki, Riichiro & Murata, Yuusuke
- Inama
- Inapa
- Inapa tecno
- Inaska
- Inateck
- Inblu
- Inca
- Inca Army
- Incase
- Incendi Press, LLC
- Incubus
- Indelibe Imprint
- Indeluz lighting
- Independendly published
- Independent
- Independent Bookworm
- Independent Publisher
- Independent Publishing Network
- Independent Thinking Press
- Independent published
- Independent x Motörhead
- Independently Pulished
- Independently published
- Index Verlag
- Index/ProMedia Wittlich