The Institute for Supply Management (ISM) is a professional organization based in the United States that focuses on advancing the practice of supply management. Founded in 1915, ISM provides education, research, and networking opportunities for professionals in the field. It is known for its influential reports, including the monthly Purchasing Managers' Index (PMI), which gauges the economic health of the manufacturing and service sectors. ISM also offers various certifications, such as the Certified Professional in Supply Management (CPSM), to help individuals enhance their skills and career prospects. The organization promotes best practices and ethical standards in supply management, contributing to the overall efficiency and effectiveness of supply chains globally.