The American Society of Anesthesiologists (ASA) is a professional organization representing anesthesiologists in the United States. It was founded in 1905 and is headquartered in Schaumburg, Illinois. The ASA serves its members and the medical community by promoting excellence in patient care, education, research, and advocacy in the specialty of anesthesiology. The ASA has more than 54,000 members composed of physicians, researchers, residents, medical students, nurse anesthetists, and others. The organization provides its members with continuing education, training, and networking opportunities to enhance their knowledge and skills. It also advocates for patient safety and quality care by establishing standards and guidelines for the practice of anesthesiology. The ASA publishes several scientific journals, including Anesthesiology, the official journal of the ASA, which features original research in anesthesiology, perioperative medicine, and critical care. The organization also conducts and sponsors various research studies to advance the field of anesthesiology and improve patient outcomes. The ASA is committed to promoting diversity, inclusion, and equity in the medical profession and has initiatives to increase the recruitment and retention of underrepresented minorities in anesthesiology. It also supports humanitarian efforts by providing aid and resources to regions affected by natural disasters or medical crises.