This document provides an overview of achieving lean excellence in non-manufacturing supply chains. It begins with introductions and defining the differences between Six Sigma and Lean. It then discusses industry trends showing only 20% of companies have deployed Lean beyond manufacturing. Common barriers to Lean deployment are presented. The value of applying Lean to supply chains is explained, focusing on value stream mapping to identify waste. Finally, the document outlines a Lean methodology for non-manufacturing supply chains including current and future state mapping, identifying value-added activities, and establishing metrics to ensure continuous improvement.