European Physical Society Division of Plasma Physics (EPS-DPP) - http://www.eps.org/directory/eps_entities_view European Physical Society Division of Plasma Physics can be found in the Divisions section. It includes group description and contact information. Group description and contact information.
Institute of Physics Plasma Physics Group - http://www.iop.org/activity/groups/division/da The Division of Atomic, Molecular, Optical and Plasma Physics of the Institute of Physics Publishing, UK
Power Beam Society of India - http://www.powerbeam.org Promotes development and growth of laser, plasma, and electron beam technologies in materials processing.