Physics
- Associations
- Acoustical Society of America
- American Association for Crystal Growth
- American Association of Physicists in Medicine
- American Association of Physics Teachers
- American Center for Physics
- American Crystallographic Association
- American Geophysical Union
- American Institute of Physics
- American Nuclear Society
- American Physical Society
- Association of Asia Pacific Physical Societies
- Australian Society for Biophysics
- AVS The Science & Technology Society
- Canadian Association of Physicists
- Canadian Institute for Neutron Scattering
- Croatian Physical Society
- Egyptian Materials Research Society
- Egyptian Physicists Association
- Engineering and Physical Sciences Research Council
- European Crystallographic Association
- European Federation of Organisations in Medical Physics
- European High Pressure Research Group
- European Neutron Scattering Association
- European Physical Society
- GIREP - International Research Group on Physics Teaching
- Health Physics Society
- Institute of Physics
- Institute of Physics, Croatia
- International Association of Mathematical Physics
- International Atomic Energy Agency
- International Liquid Crystal Society
- International Union of Crystallography
- International Union of Pure and Applied Physics
- Japan Society of Applied Physics
- Landau Institute for Theoretical Physics
- Laser Institute of America
- National Institute for Theoretical Physics
- National Society of Black Physicists
- Neutron Scattering Society of America
- Nordic Institute for Theoretical Physics
- Nuclear Energy Agency
- Nuclear Regulatory Commission
- Optical Society of America
- Overseas Chinese Physicists Association
- Physical Society of Japan
- Physical Society of the Republic of China
- Physical Society - Split
- Polish Physical Society
- Power Beam Society of India
- Sigma Pi Sigma: The National Physics Honor Society
- Society of Physics Students
- Society of Rheology
- World Nuclear Association