SUM Views 17 meanings found SUM is used across tech and business contexts, commonly referring to a data summary, a single‑user monitor, a software user manual, or specific business methods such as a systems unit method. Miscellaneous Self Updating Memory Scaling Up of MARPs Supplementary Uninsured Motorist Social Unrest Monitoring Community Straight Up Margin Students Undertaking Missions Support, Upskilling, and Multicultural Governmental Software User Manual Computing Single User Monitor Summary Software Update Manager Business Systems Unit Method Selective Understanding Markets Solium Capital Incorporated Sumatra Copper & Gold Plc Soccer United Marketing Scalable Uncertainty Management