Günther Schuh, Reiner Anderl, Jürgen Gausemeier, Michael ten Hompel, Wolfgang Wahlster: Digitally connected industrial production promises faster and more efficient processes – in development and production, services, marketing & sales and for adapting entire business models. Agility and the ability to make changes in real-time are key strategic characteristics of successful companies in Industrie 4.0. To acquire these features, it is necessary to create a continuously expanding data base. However, a company’s organisational structure and culture also play an important part in determining whether this data’s potential is leveraged effectively. This acatech STUDY describes a new tool for helping manufacturing enterprises to forge their own individual path towards becoming a learning, agile company. The acatech Industrie 4.0 Maturity Index is a six-stage maturity model that analyses the capabilities in the areas of resources, information systems, culture and organisational structure that are required by companies operating in a digitalised industrial environment. The attainment of each development stage promises concrete additional benefits for manufacturing companies. The model’s practical application was validated in a medium-sized company.