- Africa World Press and Red Sea Press
- Lawrenceville - Sister presses publishing books about Africa, African-Americans, and the African diaspora. - Blease Research
- Easton - Publisher of the Full Disclosure series, independent life insurance policy competitive analysis and comparison. - Camino Books
- Philadelphia - Publishes nonfiction books of regional interest to the people of the Middle Atlantic states. - Chelsea House Publishers
- Broomall - Non-fiction library books for children and young adults. - Communications Media for Education, Inc.
- Princeton Junction - Providing medical communications and information services for physicians and other healthcare professionals under pharmaceutical industry support. - Current Medicine Inc.
- Philadelphia - Publisher of illustrated, full-colour medical publications. - Exeter House Books
- Reading - Offering true ghost stories, shipwrecks, train wrecks, hauntings, folklore, and legends in Pennsylvania, New Jersey, New York, and Delaware. - F.A. Davis Publishing Company
- Philadelphia - Specialises in publishing textbooks, clinical reference books, monographs and multimedia in the fields of nursing, allied health, and medicine. - Family Business Magazine
- Philadelphia - For the owners of family companies and the advisors who serve them. - Gauntlet Press
- Springfield - Publisher of critically acclaimed original horror fiction and limited edition reprints of horror classics. - Handbooks in Health Care Co.
- Newtown - Medical publishing company that produces education and reference materials useful for clinicians, residents, and students preparing for board examinations. - Jewish Publication Society
- Philadelphia - Publisher of Jewish books in the English language. - Lippincott Williams & Wilkins
- Philadelphia - Global publisher of medical, nursing, and allied health information resources in book, journal, newsletter, looseleaf, and electronic media formats. - Marco Products, Inc.
- Warminster - Publisher specialising in elementary and secondary guidance related programmes, games, and books. - Meniscus Limited
- Bala Cynwyd - Publisher of educational activities and communications vehicles for health care professionals. - Neibauer Press
- Warminster - Providing tithing and stewardship tracts and programmes, banners, and more for churches. - Oak Knoll Books
- New Castle - Specialises in out-of-print books about book collecting, book history and the book arts; publisher, distributor, and bookseller. - Pearl Publishing House
- Philadelphia - Publisher of Islamic books and educational software. - Peterson's Education Center
- Princeton - Provider of information on US-accredited educational institutions. Also publishes college guides and college and university entrance test prep materials. - Salem Company
- Woodstown - Publishes self-study textbooks for the beginning basics of industrial gearing and machinery. - Sweatshop Press
- Philadelphia - Publishing house under which The Jamar Chronicles is produced. - Swedenborg Foundation and Chrysalis Books
- West Chester - Publisher, bookseller, and educational organisation offering the theological works of Emanuel Swedenborg and more.
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