Marketing and Entrepreneurship in the unbreakable bond, namely entrepreneurship can not exist without successful knowledge and use of marketing. An entrepreneur is, a combination of direct business activities, established company, the driver and the holder of change, successfully communicating, knows to set the right goals at the right time, and is able to understand the changes in the environment. But none of this is not possible without knowledge of marketing and its main determinants. In order to successfully achieve its goal of an entrepreneur in his business must incorporate monitoring and market research, product development, pricing, distribution channels and market communication and promotion. The main task of the marketing concept is to satisfy the needs of customers better than the competition and achieve long-term gain. Marketing helps to understand and learn all that stands behind a good product or service. The company adopted the marketing concept based their business on that success stems from the company effectively meet the needs of consumers. Then when the company adopted the concept of marketing to consumers then the concept of marketing consists of a willingness to understand the needs and desires of consumers, and the willingness to adapt any element of the marketing mix in order to meet these needs and desires. Implementation of the marketing concept plays an important role in achieving long-term profitability, because it is directly related to the goals of entrepreneurs, who for profit and enters the realization of entrepreneurial ventures. At the stage of development of entrepreneurial ventures, it is important that the entrepreneur has a good idea of the needed capital. The work has shown that the company "Optimus Consulting" doo went into an entrepreneurial venture by using the settings the marketing aspect and successfully joined the market. It is difficult to survive in the market if the company has no knowledge of what, how and for whom to produce something. There is increasing competition and entrepreneur should be better than the competition by offering consumers meet their needs better than the competition, but without understanding the marketing and implementation of the marketing concept entrepreneur be difficult to achieve a positive result and therefore the entrepreneur must understand and apply marketing in their business.