Due to the progressive digitalization of the media market, the commitment to expand the classical media portfolio by creating digital positions is essential. STYRIA Media Group AG as traditional media house is extending its market to exploit new digital business opportunities. The company has already managed the successful digitalization of parts of the core business of media houses, namely classifieds and brochure supplements. By establishing digital marketplaces, they have secured a dominant position in their core markets. Now they see a great opportunity in the internationalization of their successful business models. As STYRIA does not have a standardized tool which can be applied in a systematic country selection process to evaluate potential new international markets, the aim of this master thesis is to develop a branch specific country selection model. As STYRIA distinguishes between classifieds and best buy portals, for each, one model was developed tailored to the particularities of digital marketplaces. Within the theoretical part of this thesis, an initial analysis concerning the internationalization of media companies, the characteristics of media industry and digital marketplaces was made. The focus was placed on influencing factors regarding model conception and country selection criteria. As a result, a theoretical model was created. The considerations concerning model conception in the sense of method approach and criteria selection needed to be reviewed within an empirical research. A special focus was placed on the generation of branch specific country selection criteria for classifieds and best buy portals, as to date, they can not be found in literature. Explorative interviews helped gaining comprehensive and individual factual information concerning this relatively unknown research issue. The subsequent tailored country selection models were then applied in practice. They were designed as multi-stage models which enable a systematic tracking down, identifying the most promising foreign countries. The models are set up as Excel tools and can be used for filtering a large amount of potential countries or for evaluating single countries as well. As the models must be applicable to open problem structures and evaluate fast-changing market circumstances, flexible adjustment possibilities are given. Within a usability cross-check, the functionality and handling was reviewed. Therefore, four countries were analysed. By putting the models into practice, it was found that the models show validity and an efficient handling and go-through of a complex process. Finally, the developed models were reflected critically and recommendations for the next steps regarding the implementation as a systematic process respectively the application at STYRIA Media Group are given.