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 Considerations -- Decriptive Data Analysis: General Firm Characteristics -- Descriptive Data Analysis: International Activities -- Multivariate Data Analysis: Operationalisation of Independent Variables -- Differences between International Start-ups and Domestic Start-ups, the Degree of Internationalisation and Timing of Foreign Market Entry -- The Choice of Market Entry Mode -- Conclusions.