What Is the Institute for Supply Management?

The Institute for Supply Management (ISM) is a nonprofit professional organization that plays a leading role in advancing the practice of supply management and procurement. Founded in 1915, ISM is based in the United States and is one of the oldest and most recognized organizations in the field. It offers education, certification, and research to supply chain professionals across various industries. While its name reflects a broad focus on supply management, ISM is best known in public and economic circles for producing the ISM Purchasing Managers’ Index (PMI), a widely followed economic indicator.

History and Mission

Originally established as the National Association of Purchasing Agents (NAPA), the organization changed its name multiple times as the field of procurement evolved. In 2001, it adopted the current name—Institute for Supply Management—to better reflect the expanding role of procurement professionals beyond purchasing and into areas such as logistics, strategic sourcing, and global supply chain strategy.

ISM’s mission is to advance the practice of supply management to drive value and competitive advantage. It does so by developing tools, frameworks, and educational resources that support supply professionals in making more informed decisions. In addition to individual member support, ISM contributes to thought leadership through industry standards, surveys, and reports that shape procurement and supply chain practices.

Education and Certification Programs

ISM offers a range of educational resources aimed at helping individuals and organizations improve their supply chain capabilities. These include webinars, online courses, in-person training, and self-study programs. It also hosts an annual conference that brings together practitioners, academics, and industry leaders to discuss best practices and future trends.

The organization is widely known for its certification programs, including the Certified Professional in Supply Management (CPSM) and the Certified Professional in Supplier Diversity (CPSD). These credentials are designed to establish professional standards and validate expertise in areas such as sourcing, contract management, supplier relationship management, and risk mitigation. ISM certifications are recognized globally and often required or preferred by employers in supply chain and procurement roles.

Research and Economic Indicators

One of ISM’s most influential contributions is its suite of monthly economic indicators, particularly the ISM Manufacturing PMI and the ISM Services PMI (formerly Non-Manufacturing PMI). These indices are based on surveys of supply managers in various sectors and provide early insights into economic trends, including business activity, new orders, employment, inventories, and supplier deliveries.

The ISM Manufacturing PMI tracks the health of the manufacturing sector, while the ISM Services PMI focuses on the service economy. These reports are closely monitored by financial analysts, investors, policymakers, and economists because they are among the first pieces of major economic data released each month. Movements in these indices can influence market expectations around inflation, employment, and GDP growth.

The methodology behind these reports involves diffusion indices, where a reading above 50 typically signals expansion and below 50 indicates contraction. ISM ensures consistency in data collection and maintains transparency in how it compiles its indices. The results are used in both macroeconomic forecasting and sector-specific analysis.

Industry Influence and Global Reach

Though based in the U.S., ISM has an international presence through partnerships, affiliations, and global membership. It collaborates with organizations worldwide to promote supply chain excellence and develop shared standards and benchmarks. This includes participation in international events and cooperation with similar associations in other countries.

ISM’s research also extends to topical issues in global supply chains, such as sustainability, geopolitical risk, digital transformation, and supplier diversity. Through white papers, benchmarking studies, and surveys, ISM provides data-driven insights that help organizations adapt to changing conditions and meet evolving stakeholder expectations.

Governance and Membership

ISM is governed by a board of directors comprising professionals from diverse industries, academic institutions, and public sector organizations. The organization supports over 50,000 members and works with over 60 local chapters in the U.S., offering networking opportunities and local training.

Membership provides access to exclusive content, discounted certifications, and tools such as templates, guides, and benchmarking resources. ISM also publishes Inside Supply Management, a monthly magazine covering supply chain news, case studies, and expert commentary.

The Bottom Line

The Institute for Supply Management is a cornerstone institution in the field of supply chain and procurement. With more than a century of history, ISM has shaped the profession through education, certification, and influential economic reporting. Its monthly PMI reports are considered leading indicators of economic health, while its certification programs help professionals build credibility and advance their careers. As global supply chains grow in complexity, ISM continues to serve as a resource for best practices, professional development, and industry insight.