Aalborg University

Aalto University

Aarhus University

Aberystwyth University

Academy of Finland

Academy of General Dentistry

Acoustical Society of America

Action Medical Research

Advanced Industrial Science and Technology

Agency for Science, Technology and Research (A*STAR), Singapore

Agnes Scott College

Agri-Food and Sciences Institute

Agricultural Research Service

AIMEN

Albert Einstein College of Medicine

Albert Ludwigs University of Freiburg

Albright College

Alfred Wegener Institute

Allen Institute

Allen Institute for Brain Science

Alzheimer Europe

Alzheimer's Research UK

American Academy of Family Physicians

American Academy of Neurology

American Academy of Ophthalmology

American Academy of Orthopaedic Surgeons

American Academy of Otolaryngology

American Academy of Otolaryngology -- Head and Neck Surgery

American Academy of Pediatrics

American Academy of Periodontology

American Academy of Sleep Medicine

American Associates, Ben-Gurion University of the Negev

American Association for Cancer Research

American Association of Neurological Surgeons

American Association of Pharmaceutical Scientists

American Cancer Society

American Chemical Society

American College of Allergy, Asthma, and Immunology

American College of Cardiology

American College of Chest Physicians

American College of Emergency Physicians

American College of Physicians

American College of Radiology

American College of Rheumatology

American College of Surgeons

American Diabetes Association

American Gastroenterological Association

American Genetic Association

American Geophysical Union

American Geriatrics Society

American Heart Association

American Institute for Cancer Research

American Institute of Biological Sciences

American Institute of Mathematics

American Institute of Physics

American Journal of Botany

American Journal of Pathology

American Journal of Preventive Medicine

American Marketing Association

American Mathematical Society

American Meteorological Society

American Museum of Natural History

American Oil Chemists' Society

American Ornithological Society

American Pain Society

American Pediatric Society

American Physical Society

American Physical Therapy Association

American Physiological Society

American Psychiatric Association

American Psychological Association

American Roentgen Ray Society

American Society for Biochemistry and Molecular Biology

American Society for Cell Biology

American Society for Gastrointestinal Endoscopy

American Society for Horticultural Science

American Society for Microbiology

American Society for Nutrition

American Society for Radiation Oncology

American Society of Agronomy

American Society of Clinical Oncology

American Society of Hematology

American Society of Human Genetics

American Society of Nephrology

American Society of Plant Biologists

American Society of Plastic Surgeons

American Society of Tropical Medicine and Hygiene

American Sociological Association

American Statistical Association

American Technion Society

American Thoracic Society

American University

Ames Laboratory

Amherst College

AMOLF

Andres Bello University

Angewandte Chemie

Anglia Ruskin University

Annenberg Public Policy Center

Antarctic & Southern Ocean Coalition

Appalachian State University

Apple

ARC Centre of Excellence for Nanoscale BioPhotonics

ARC Centre of Excellence in Coral Reef Studies

Arecibo Observatory

Argonne National Laboratory

Arizona State University

Armagh Observatory

Arthritis Foundation

Artie McFerrin Department of Chemical Engineering at Texas A&M University

Aryabhatta Research Institute of Observational Science

Asociacion RUVID

Association for Psychological Science

Association for Research in Vision and Ophthalmology

Association of Universities for Research in Astronomy

Aston University

Astrobiology Magazine

ASTRON Netherlands Institute for Radio Astronomy

ASUS

ATLAS Experiment

Auburn University

Australian Institute for Bioengineering and Nanotechnology

Australian National University

Australian Nuclear Science and Technology Organisation (ANSTO)

Australian Synchrotron

Austrian Science Fund (FWF)

Autism Speaks

Autonomous University of Barcelona