The view on quality as a critical competitive factor has been established not only in Western countries but is on the rise in emerging markets, too. In the complex of products and rising customer expectations, many companies try to reduce costs and increase the market opportunities for their products by applying broad-based quality initiatives. Normatively distinct quality management offers only few instructions for these approaches, which is constraining the success of the initiatives. Within the framework of an international study on quality management in manufacturing companies, critical success factors and best practices have been identified on the way to the sustainable establishment of effective quality management. On basis of a developed maturity assessment tool, companies are given the ability to identify the status of their own quality management in comparison to best practice.