Production engineering is a complex procedure since distributed engineering teams should collaborate, using heterogeneous IT tools. This work presents the concept and initial implementation of an AutomationML server for collaborative computer-aided production engineering in which Original Equipment Manufacturer and supplier companies interact with the help of a diverse range of design and engineering tools. The server provides collaboration and data services to electromechanical objects via a collection of predefined Web Services. Finally, the development of a web AutomationML editor is discussed and its integration to the proposed AutomationML server is presented.