This article examines the embedding of the phenomenon of Born Globals into three existing theories of the firm. The model of Born Globals deals with young companies that begin shortly after their foundation to internationalize. The Uppsala Internationalization Model helps to delimit the concept of Born Globals from existing internationalization models and to highlight their special features. The resource-based view takes up the integration of knowledge as the key resource of Born Globals and explains the underlying mechanism with which a company achieves a sustainable competitive advantage from a bundle of resources. The knowledge-based view is concerned with the generation of knowledge and explains the learning processes that are performed by the entrepreneur. A recurring theme could be identified and contains the following elements which interconnect the three theories of the firm with the concept of Born Globals - knowledge as a key resource, learning, and integration of knowledge into organizations.