Publishers – I
- I Tatti
- I.M.P.
- i2i Publishing
- Ian Randle Publishers,Jamaica
- Iberoamericana Editorial Vervuert
- Ibidem Press
- Ibidem Verlag
- Icon Books
- Idea & Design Works
- Idea Group
- iEduArts Publishers
- IGI Global
- Igloo Books
- Illuminate Publishing
- Image Comics
- Imagine & Wonder
- Imagine Publishing
- Imagine That Publishing
- Imprint Academic
- Inanna Publications & Education
- Indent Publishing
- Independent Publishers Group
- Independently Published
- Indiana University Press
- Indigo Press, The
- Information Age Publishing
- Information Science Reference
- Ingram Publisher Services
- IngramSpark
- Inhabit Education Books
- Inhabit Media
- Inkandescent
- Inner City Books
- Inner Traditions Bear and Company
- Insight Editions
- Institute of Modern Languages Research
- Institute of Physics Publishing
- Instituto Monsa de Ediciones
- Intellect
- Interactive Press
- Interactive Publications
- Interlink Books
- International Dance Writing Foundation
- International Publishers
- International Scholars Publications, U.S.
- International Society for Technology in Education
- InterVarsity Press
- Inventory Press
- IP Verlag
- ISTE
- Ivan R Dee, Inc
- IVP Books