- Capital Books - Publisher of titles on career and personal development as well as general subjects.
- Cardiff Academic Press - Publishers of academic books, specialising in religious studies, biography, and literature.
- CavanKerry Press - New and reprints of poetry and prose.
- Centerpoint Press - Books on a variety of topics.
- CenturyOne Bookstore - Archaeological and biblical games, multimedia, software, and books on biblical studies, history and travel.
- Chase Publishing - Cookbooks and short stories collections.
- Clear Light Books - Books to enhance the human spirit.
- Congalton, Alexander - A California couple that publishes books on grieving for animals and other animal-welfare and pet-owner issues.
- Creekside Press - Books, articles, news, and products related to the writing, theology, and environmental pursuits of Dick Austin.
- Cumbria Books - Offers new and out of print books from the UK
- The Crossing Press - Non-fiction books, including spirituality, new age, alternative health and healing, cooking, and pets.
