The American Physical Society (APS) is a non-profit membership organization working to advance and diffuse the knowledge of physics through its outstanding research journals, scientific meetings, and education, outreach, advocacy, and international activities.

The American Institute of Physics advances, promotes and serves the physical sciences for the benefit of humanity.

Our purpose is to gather, inspire, guide, represent and celebrate all who share a passion for physics. And, in our role as a charity, we’re here to ensure that physics delivers on its exceptional potential to benefit society.

SPIE is an international society advancing an interdisciplinary approach to the science and application of light.