This study conducts qualitative research, qualitative methods have a prominence on a kind, interpreting and observing data in a natural set and with a sort of insider’s view. A qualitative approach is more suitable to accomplish the purpose of this research, since this study is researching what factors are affecting on firm growth, since the fact that beliefs, observations, ideas and point of views would be hard to assess in a quantitative way. By studying the firms’ internal factors with the qualitative approach it is probable to recognize the opinions and beliefs that are affecting the firm growth.