["Business Strategy and the Environment, Volume 35, Issue 4, Page 5619-5640, May 2026. ", "\nABSTRACT\nInterest in the circular economy is growing, and to ensure credible circularity claims, broader analyses that encompass larger scales of analysis are needed. This study reviews current circularity measurement practices in business literature and examines recent larger scale assessments. Our findings show that empirical firm‐level circularity assessments remain largely small scale. Furthermore, our study evaluates the state of circularity assessment in business and management research by constructing firm‐level circularity indicators from Refinitiv Eikon data, offering an exploratory snapshot of global patterns and proposing a scalable measurement approach.\n"]