American Meteorological Society - DC Chapter

American Society of Plant Biologists - Washington Section

American Society for Technical Innovation

Anthropological Society of Washington

Association for Women in Science - DC Metropolitan Chapter

Association for Computing Machinery - DC Chapter

Biological Society of Washington

Botanical Society of Washington

Chemical Society of Washington

Institute for Electrical and Electronics Engineers, Inc. - DC and Norther Virginia Chapters

Institute of Industrial Engineers, National Capital Chapter

Marian Koshland Science Museum of the National Academy of Sciences

Maryland Native Plant Society

National Capital Section/Optical Society of America

National Institute of Standards and Technology, Physics Department

Northern Virginia Regional Park Authority - Meadowlark Botanical Gardens and Potomac Overlook Regional Park

Potomac Chapter of the Human Factors and Ergonomics Society

Philosophical Society of Washington

Society of American Foresters Washington Section

Virginia Native Plant Society

Washington Chapter of the Institute for Operations Research and Management Sciences

Washington Society for the History of Medicine