The purpose of this Master thesis is to represent different financing models for start-up companies in Austria. First of all, the term “start-up” will be defined and the public and private initiatives, which are established to optimize the start-up environment in Austria, will be described. Furthermore, the Master thesis also presents the essentials of corporate financing and represents the typical difficulties for start-up companies to obtain bank loans. In the main part I will explain the different alternative financing instruments and will illustrate those models based on examples. To determine the factors which influence start-up companies in their financing choice, the findings of literature and the results of two interviews with experts will be put together and will be depicted in a matrix.