The modern market is characterized by complexity , turbulence and increase the uncertainty caused by frequent occurrences of innovation in all business segments. Companies are forced to constantly collect information about its internal environment (on their strengths and weaknesses) , but above all on its external environment (customers, competitors, partners, the state and its economic policy). The importance of information have for a company, regardless of its size or activity engaged in, it's huge. Without quality information, there is no good business decisions. Market research is the main form of activity that is helping the company to obtain information about consumers and unconsumers, competition and distribution channels, which serves as the basis for the identification of needs and possibilities of selling in the market to identify business problems , as well as control operations. The main purpose is to reduce uncertainty and uncertainty in business decision making. Testing can be done using a few basic ways to communicate with respondents, namely: personal trial, trial by phone, by mail testing, testing via the computer and psychological testing. Depending on predominant market research classified the sources of data collection. In the literature there are different divisions with respect to the types of research, and it is difficult to find a partition that would fully satisfy because each of them has its own logic. In this paper, market research is divided into three types according to the objectives targeted by: Investigative (exploratory), descriptive (descriptive) and causal (causal) was investigated. In the case of companies Telecomm Ltd. research was undertaken into the real estate market in Varazdin and the surrounding area.