Introduction.- Literature Review: Technology-Based Start-ups / NTBFs.- Empirical Evidence on International Entrepreneurship.- Theories of International Business.- Research Objective and Development of Hypotheses: Research Objective.- Research Hypotheses.- Methodology: The Survey Instrument.- Definition of High-Technology Start-ups.- Identification of Data Sources: The Use of Credit Rating Data.- The Primary Data Base.- The Questionnaire.- The Pilot Case Studies.- Mailing and Response Pattern.- Non-Response Analysis.- Descriptive Data Analysis: Methodological Consoderations.- Decriptive Data Analysis: General Firm Characteristics.- Descriptive Data Analysis: International Activities.- Multivariate Data Analysis: Operationalisation of Independent Variables.- Differences between Internaitonal Start-ups and Domestic Start-ups, the Degree of Internationalisation and Timing of Foreign Market Entry.- The Choice of Market Entry Mode.- Conclusions: Implications for the Field of International Entrepreneurship.- Theroetical Implications.- Areas for Further Research.- Managerial Implications.