

Publishers
Publishing organizations and groups whose journals are confirmed through reviewed identifier evidence. A journal appears in a portfolio only once its publisher is confirmed as a specific organization. Also see societies.
864 publishers
- Oncology Nursing Society
- Open Access Publishing Association
- Ospedale Maria Vittoria
- Otago Polytechnic
- Ovidius University
- Oxford University Press
- Pakistan Academy of Sciences
- Pamukkale University
- Parenteral Drug Association
- Pasteur Institute of Iran
- Peeters Publishers (Belgium)
- Pennsylvania State University
- Peoples' Friendship University of Russia
- Perm National Research Polytechnic University
- Petra Christian University
- Petrozavodsk State University
- Pharmaceutical Society of Japan
- Pittsburg State University
- Pleiades Publishing (British Virgin Islands)
- Pluto Journals
- Polish Academy of Sciences
- Polish Botanical Society
- Polish Geological Institute
- Pontificia Universidad Javeriana
- Population Reference Bureau
- Prague University of Economics and Business
- Presses Universitaires de France
- Prince of Songkla University
- Princeton University
- Public Health Agency of Canada
- Public Library of Science
- Queens University
- Queensland Museum
- Queensland University of Technology
- Radiological Society of North America
- Rangsit University
- RELX Group (Netherlands)
- RELX Group (United Kingdom)
- Riga Technical University
- Rockefeller University Press
- Routledge (United Kingdom)
- Royal Australian College of General Practitioners
- Royal College of General Practitioners
- Royal College of Obstetricians and Gynaecologists
- Royal College of Physicians
- Royal College of Psychiatrists
- Royal Irish Academy
- Royal Society of Chemistry
- Royal Society of Edinburgh
- Royal Zoological Society of New South Wales