The document describes a case study on benchmarking the manufacturing processes of garment manufacturing companies in Sri Lanka. Key steps included identifying relevant key performance indicators (KPIs) through industry visits, collecting data via questionnaires from 27 factories, developing conceptual performance measurement models, and calculating performance rankings across factories using multi-criteria decision making techniques like TOPSIS and AHP. The final performance rankings identified gaps and weakest areas to target for improvement through action plans. Benchmarking is presented as an essential quality tool for companies to assess performance against competitors and drive continuous improvement.