Philosophy of Science Association

Publishes Philosophy of Science, hosts biennial meetings.
http://scistud.umkc.edu/psa/

History of Philosophy of Science Working Group

International working group of scholars with interest in research on the history of the philosophy of science and related topics.
http://scistud.umkc.edu/hopos/

The European Association for the Study of Science and Technology

EASST is an interdisciplinary scholarly society, which reflects the closeness of history, philosophy, psychology and sociology of science in recent years.
http://www.chem.uva.nl/easst/

British Society for the Philosophy of Science

Publishes the British Journal for the Philosophy of Science, sponsors an annual summer conference.
http://www.bris.ac.uk/Depts/Philosophy/BSPS/BSPSHome.html