This book examines the topic of Circular Economy in an entrepreneurial context. It describes ten options for companies to retain value and identifies drivers and enablers for implementing Circular Economy in businesses. A survey among more than 500 industry experts revealed the extent to which retention options were implemented in practice. For the first time, relevant drivers and enablers for each retention option were identified. On top of this, case studies of successful circular market offerings shed light on each retention option in detail. The knowledge gained from research and the further shared experiences of experts that contributed to this book result in a 6-step management model. This model provides guidance on how to implement Circular Economy in organisations as an element of operational excellence and as a source of product, service, and business innovation. Now, every enterprise can start the journey. As the survey and the cases show: Circular Economy is a promising way to the next level of company success. The book at hand will help organisations to develop their own individual approach that matches their business model. In short, you will find: