Startups is the phenomenon that has been entering into the public awareness. However the increasing popularity of startups is not reflected by academics, whose interest in this topic is still limited. Universally valid definition of startup is missing. There is small number of research projects studying development and growth of startups. We know a little about the individuals that stay behind these entrepreneurial acts. Startups can in fact contribute to economic development of regions considerably. This applies doubly for the startups operating in knowledge-intensive economic sectors as information technology (IT), which is characterized by the highest performance in terms of founding rates of startups. Setting of systematic and effective regional policy instruments for startups support is, however, dependent on their detailed understanding. The ambition of diploma thesis is contribute to this understanding and at least assist in the creation of regional-development policy of startups support. The aim of this work is to find and describe behavior patterns of Czech IT and internet startups during their growth from the perspective of developmental process, financing and spatial organization. Development of startups within the discussed fields of research is examined through four stages of development...