The diploma thesis brings the marketing study of company Aquasvět Chomutov. The own thesis is about the theory that gave a basic data for used methods and processes. Includes basic terms of marketing used in thesis. In practical part there is an introduction of the subject of thesis Aquasvět Chomutov. There are analyses made for main analysis SWOT, for its use. These are financial analysis and the competition analysis and the analysis of surroundings. Thanks to given data from used analysis it was possible to make SWOT analysis that showed weak and strong points of the company. There was also the marketing research made to show the meaning of customers and the way how they look at the company. At the end of the thesis there are suggested ac...